]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
First complete Russian translation.
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / MainWebViewActivity.java
index cfe93f2740163d27a76435965151891ecfe69404..ff82699621388e50c22ab34879fef9c3c673369e 100644 (file)
@@ -21,8 +21,8 @@
 
 package com.stoutner.privacybrowser.activities;
 
+import android.Manifest;
 import android.annotation.SuppressLint;
-import android.app.Activity;
 import android.app.DialogFragment;
 import android.app.DownloadManager;
 import android.content.BroadcastReceiver;
@@ -32,6 +32,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.database.Cursor;
 import android.graphics.Bitmap;
@@ -44,6 +45,7 @@ import android.net.http.SslCertificate;
 import android.net.http.SslError;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Environment;
 import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.print.PrintDocumentAdapter;
@@ -71,7 +73,6 @@ import android.text.Editable;
 import android.text.Spanned;
 import android.text.TextWatcher;
 import android.text.style.ForegroundColorSpan;
-import android.util.Log;
 import android.util.Patterns;
 import android.view.ContextMenu;
 import android.view.GestureDetector;
@@ -112,44 +113,43 @@ import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog;
 import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog;
 import com.stoutner.privacybrowser.dialogs.CreateHomeScreenShortcutDialog;
 import com.stoutner.privacybrowser.dialogs.DownloadImageDialog;
+import com.stoutner.privacybrowser.dialogs.DownloadLocationPermissionDialog;
 import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog;
 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog;
 import com.stoutner.privacybrowser.dialogs.HttpAuthenticationDialog;
 import com.stoutner.privacybrowser.dialogs.PinnedSslCertificateMismatchDialog;
 import com.stoutner.privacybrowser.dialogs.UrlHistoryDialog;
 import com.stoutner.privacybrowser.dialogs.ViewSslCertificateDialog;
+import com.stoutner.privacybrowser.helpers.BlockListHelper;
 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
 import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper;
 import com.stoutner.privacybrowser.helpers.OrbotProxyHelper;
 import com.stoutner.privacybrowser.dialogs.DownloadFileDialog;
 import com.stoutner.privacybrowser.dialogs.SslCertificateErrorDialog;
 
-import java.io.BufferedReader;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.IOException;
-import java.io.InputStreamReader;
 import java.io.UnsupportedEncodingException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLDecoder;
 import java.net.URLEncoder;
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import java.util.regex.Pattern;
 
-// We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
+// AppCompatActivity from android.support.v7.app.AppCompatActivity must be used to have access to the SupportActionBar until the minimum API is >= 21.
 public class MainWebViewActivity extends AppCompatActivity implements AddDomainDialog.AddDomainListener, CreateBookmarkDialog.CreateBookmarkListener,
         CreateBookmarkFolderDialog.CreateBookmarkFolderListener, CreateHomeScreenShortcutDialog.CreateHomeScreenSchortcutListener, DownloadFileDialog.DownloadFileListener,
-        DownloadImageDialog.DownloadImageListener, EditBookmarkDialog.EditBookmarkListener, EditBookmarkFolderDialog.EditBookmarkFolderListener, HttpAuthenticationDialog.HttpAuthenticationListener,
-        NavigationView.OnNavigationItemSelectedListener, PinnedSslCertificateMismatchDialog.PinnedSslCertificateMismatchListener, SslCertificateErrorDialog.SslCertificateErrorListener,
-        UrlHistoryDialog.UrlHistoryListener {
+        DownloadImageDialog.DownloadImageListener, DownloadLocationPermissionDialog.DownloadLocationPermissionDialogListener, EditBookmarkDialog.EditBookmarkListener,
+        EditBookmarkFolderDialog.EditBookmarkFolderListener, HttpAuthenticationDialog.HttpAuthenticationListener, NavigationView.OnNavigationItemSelectedListener,
+        PinnedSslCertificateMismatchDialog.PinnedSslCertificateMismatchListener, SslCertificateErrorDialog.SslCertificateErrorListener, UrlHistoryDialog.UrlHistoryListener {
 
     // `darkTheme` is public static so it can be accessed from `AboutActivity`, `GuideActivity`, `AddDomainDialog`, `SettingsActivity`, `DomainsActivity`, `DomainsListFragment`, `BookmarksActivity`,
     // `BookmarksDatabaseViewActivity`, `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `DownloadFileDialog`, `DownloadImageDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`,
@@ -179,9 +179,6 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
     // `appliedUserAgentString` is public static so it can be accessed from `ViewSourceActivity`.  It is also used in `applyDomainSettings()`.
     public static String appliedUserAgentString;
 
-    // `displayWebpageImagesBoolean` is public static so it can be accessed from `DomainSettingsFragment`.  It is also used in `applyAppSettings()` and `applyDomainSettings()`.
-    public static boolean displayWebpageImagesBoolean;
-
     // `reloadOnRestart` is public static so it can be accessed from `SettingsFragment`.  It is also used in `onRestart()`
     public static boolean reloadOnRestart;
 
@@ -191,8 +188,11 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
     // `restartFromBookmarksActivity` is public static so it can be accessed from `BookmarksActivity`.  It is also used in `onRestart()`.
     public static boolean restartFromBookmarksActivity;
 
-    // `easyListVersion` is public static so it can be accessed from `AboutTabFragment`.  It is also used in `onCreate()`.
+    // The block list versions are public static so they can be accessed from `AboutTabFragment`.  They are also used in `onCreate()`.
     public static String easyListVersion;
+    public static String easyPrivacyVersion;
+    public static String fanboyAnnoyanceVersion;
+    public static String fanboySocialVersion;
 
     // `currentBookmarksFolder` is public static so it can be accessed from `BookmarksActivity`.  It is also used in `onCreate()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`,
     // `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()`, and `loadBookmarksFolder()`.
@@ -270,14 +270,20 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
     // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applyAppSettings()`.
     private boolean swipeToRefreshEnabled;
 
+    // `displayWebpageImagesBoolean` is used in `applyAppSettings()` and `applyDomainSettings()`.
+    private boolean displayWebpageImagesBoolean;
+
     // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applyAppSettings()`.
     private String homepage;
 
     // `searchURL` is used in `loadURLFromTextBox()` and `applyAppSettings()`.
     private String searchURL;
 
-    // `adBlockerEnabled` is used in `onCreate()` and `applyAppSettings()`.
-    private boolean adBlockerEnabled;
+    // The block list variables are used in `onCreate()` and `applyAppSettings()`.
+    private boolean easyListEnabled;
+    private boolean easyPrivacyEnabled;
+    private boolean fanboyAnnoyanceListEnabled;
+    private boolean fanboySocialBlockingListEnabled;
 
     // `privacyBrowserRuntime` is used in `onCreate()`, `onOptionsItemSelected()`, and `applyAppSettings()`.
     private Runtime privacyBrowserRuntime;
@@ -300,6 +306,9 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
     // `reapplyDomainSettingsOnRestart` is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, and `onAddDomain()`, .
     private boolean reapplyDomainSettingsOnRestart;
 
+    // `reapplyAppSettingsOnRestart` is used in `onNavigationItemSelected()` and `onRestart()`.
+    private boolean reapplyAppSettingsOnRestart;
+
     // `currentDomainName` is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onAddDomain()`, and `applyDomainSettings()`.
     private String currentDomainName;
 
@@ -386,9 +395,22 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
     // `oldFolderNameString` is used in `onCreate()` and `onSaveEditBookmarkFolder()`.
     private String oldFolderNameString;
 
+    // The download strings are used in `onCreate()` and `onRequestPermissionResult()`.
+    private String downloadUrl;
+    private String downloadContentDisposition;
+    private long downloadContentLength;
+
+    // `downloadImageUrl` is used in `onCreateContextMenu()` and `onRequestPermissionResult()`.
+    private String downloadImageUrl;
+
+    // The request codes are used in `onCreate()`, `onCreateContextMenu()`, `onCloseDownloadLocationPermissionDialog()`, and `onRequestPermissionResult()`.
+    private final int DOWNLOAD_FILE_REQUEST_CODE = 1;
+    private final int DOWNLOAD_IMAGE_REQUEST_CODE = 2;
+
     @Override
     // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.  The whole premise of Privacy Browser is built around an understanding of these dangers.
-    @SuppressLint({"SetJavaScriptEnabled"})
+    // Also, remove the warning about needing to override `performClick()` when using an `OnTouchListener` with `WebView`.
+    @SuppressLint({"SetJavaScriptEnabled", "ClickableViewAccessibility"})
     // Remove Android Studio's warning about deprecations.  We have to use the deprecated `getColor()` until API >= 23.
     @SuppressWarnings("deprecation")
     protected void onCreate(Bundle savedInstanceState) {
@@ -408,745 +430,6 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         // Run the default commands.
         super.onCreate(savedInstanceState);
 
-        Log.i("BlockLists", "Begin populating block lists.");
-
-        // Initialize the block lists.
-        List<String> mainWhiteList = new LinkedList<>();
-        List<String[]> multiEntryWhiteList = new LinkedList<>();
-        List<String> mainBlockList = new LinkedList<>();
-        List<String> initialBlockList = new LinkedList<>();
-        List<String> finalBlockList = new LinkedList<>();
-        List<String[]> multiEntryBlockList = new LinkedList<>();
-        List<String[]> multiEntryInitialBlockList = new LinkedList<>();
-        List<String[]> multiEntryFinalBlockList = new LinkedList<>();
-        List<String[]> domainBlockList = new LinkedList<>();
-        List<String[]> domainInitialBlockList = new LinkedList<>();
-        List<String[]> domainFinalBlockList = new LinkedList<>();
-        List<String[]> domainMultiEntryBlockList = new LinkedList<>();
-        List<String[]> domainRegularExpressionBlockList = new LinkedList<>();
-        List<String> regularExpressionBlockList = new LinkedList<>();
-
-        // Populate the block lists.
-        try {
-            // Load `easylist.txt` into a `BufferedReader`.
-            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(getAssets().open("easylist.txt")));
-
-            // Create a string for storing the block list entries.
-            String blockListEntry;
-
-            // Parse EasyList.
-            while ((blockListEntry = bufferedReader.readLine()) != null) {
-                //noinspection StatementWithEmptyBody
-                if (blockListEntry.contains("##") || blockListEntry.contains("#?#") || blockListEntry.contains("#@#") || blockListEntry.startsWith("[")) {
-                    // Entries that contain `##`, `#?#`, and `#@#` are for hiding elements in the main page's HTML.  Entries that start with `[` describe the AdBlock compatibility level.
-
-                    // Do nothing.  Privacy Browser does not currently use these entries.
-
-                    //Log.i("BlackLists", "Not added: " + adBlockerEntry);
-                } else if (blockListEntry.startsWith("!")){  //  Entries that begin with `!` are comments.
-                    if (blockListEntry.startsWith("! Version:")) {
-                        // Store the EasyList version number.
-                        easyListVersion = blockListEntry.substring(11);
-                    }
-
-                    //Log.i("BlackLists", "Not added: " + adBlockerEntry);
-                } else if (blockListEntry.startsWith("@@")) {  // Entries that begin with `@@` are excludes (whitelists).
-                    // mainWhiteList.add(blockListEntry.substring(2));
-
-                    //Log.i("BlockLists", "Main white list added: " + blockListEntry.substring(2, blockListEntry.length()));
-                } else if (blockListEntry.endsWith("|")){  // Entries that end with `|` match against the end of the URL.
-                    // Strip out the final "|"
-                    blockListEntry = blockListEntry.substring(0, blockListEntry.length() - 1);
-
-                    // Strip out any initial `||`.  They are redundant in this case because the block list entry is being matched against the end of the URL.
-                    if (blockListEntry.startsWith("||")) {
-                        blockListEntry = blockListEntry.substring(2);
-                    }
-
-                    if (blockListEntry.contains("*")) {
-                        int wildcardIndex = blockListEntry.indexOf("*");
-
-                        String firstEntry = blockListEntry.substring(0, wildcardIndex);
-                        String secondEntry = blockListEntry.substring(wildcardIndex + 1);
-
-                        if (firstEntry.endsWith("^")) {
-                            String firstEntryBase = firstEntry.substring(0, firstEntry.length() - 1);
-
-                            String firstEntry1 = firstEntryBase + ":";
-                            String firstEntry2 = firstEntryBase + "/";
-                            String firstEntry3 = firstEntryBase + "?";
-                            String firstEntry4 = firstEntryBase + "=";
-                            String firstEntry5 = firstEntryBase + "&";
-
-                            String[] doubleEntry1 = {firstEntry1, secondEntry};
-                            String[] doubleEntry2 = {firstEntry2, secondEntry};
-                            String[] doubleEntry3 = {firstEntry3, secondEntry};
-                            String[] doubleEntry4 = {firstEntry4, secondEntry};
-                            String[] doubleEntry5 = {firstEntry5, secondEntry};
-
-                            multiEntryFinalBlockList.add(doubleEntry1);
-                            multiEntryFinalBlockList.add(doubleEntry2);
-                            multiEntryFinalBlockList.add(doubleEntry3);
-                            multiEntryFinalBlockList.add(doubleEntry4);
-                            multiEntryFinalBlockList.add(doubleEntry5);
-
-                            //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry1 + " , " + secondEntry);
-                            //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry2 + " , " + secondEntry);
-                            //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry3 + " , " + secondEntry);
-                            //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry4 + " , " + secondEntry);
-                            //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry5 + " , " + secondEntry);
-                        } else {
-                            String[] doubleEntry = {firstEntry, secondEntry};
-
-                            multiEntryFinalBlockList.add(doubleEntry);
-
-                            //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry + " , " + secondEntry);
-                        }
-                    } else {
-                        finalBlockList.add(blockListEntry);
-
-                        //Log.i("BlockLists", "Final block list added: " + blockListEntry);
-                    }
-                } else if (blockListEntry.contains("$")) {  // Entries that contain `$` use filter options.
-                    // Strip out any initial `||`.  These will be treated like any other entry.
-                    if (blockListEntry.startsWith("||")) {
-                        blockListEntry = blockListEntry.substring(2);
-                    }
-
-                    if (blockListEntry.contains("third-party")) {
-                        // Log.i("BlockLists", "Not added: " + blockListEntry);
-                    } else if (blockListEntry.substring(blockListEntry.indexOf("$")).contains("domain")) {
-                        if (blockListEntry.contains("~")) {  // Whitelist.
-
-                        } else {
-                            // Separate the filters.
-                            String entry = blockListEntry.substring(0, blockListEntry.indexOf("$"));
-                            String filters = blockListEntry.substring(blockListEntry.indexOf("$") + 1);
-                            String domains = filters.substring(filters.indexOf("domain=") + 7);
-
-                            // Only process the block list item if the entry is not null.  Some lines in EasyList begin with `$websocket`, which create a null entry.
-                            if (!entry.equals("")) {
-                                do {
-                                    String domain;
-
-                                    if (domains.contains("|")) {
-                                        // Get the first domain.
-                                        domain = domains.substring(0, domains.indexOf("|"));
-
-                                        // Remove the first domain from the list.
-                                        domains = domains.substring(domains.indexOf("|") + 1);
-                                    } else {
-                                        domain = domains;
-                                    }
-
-                                    if (entry.contains("*")) {
-                                        int wildcardIndex = entry.indexOf("*");
-
-                                        String firstEntry = entry.substring(0, wildcardIndex);
-                                        String secondEntry = entry.substring(wildcardIndex + 1);
-
-                                        if (firstEntry.endsWith("^")) {
-                                            String firstEntryBase = firstEntry.substring(0, firstEntry.length() - 1);
-
-                                            String firstEntry1 = firstEntryBase + ":";
-                                            String firstEntry2 = firstEntryBase + "/";
-                                            String firstEntry3 = firstEntryBase + "?";
-                                            String firstEntry4 = firstEntryBase + "=";
-                                            String firstEntry5 = firstEntryBase + "&";
-
-                                            String[] domainDoubleEntry1 = {domain, firstEntry1, secondEntry};
-                                            String[] domainDoubleEntry2 = {domain, firstEntry2, secondEntry};
-                                            String[] domainDoubleEntry3 = {domain, firstEntry3, secondEntry};
-                                            String[] domainDoubleEntry4 = {domain, firstEntry4, secondEntry};
-                                            String[] domainDoubleEntry5 = {domain, firstEntry5, secondEntry};
-
-                                            domainMultiEntryBlockList.add(domainDoubleEntry1);
-                                            domainMultiEntryBlockList.add(domainDoubleEntry2);
-                                            domainMultiEntryBlockList.add(domainDoubleEntry3);
-                                            domainMultiEntryBlockList.add(domainDoubleEntry4);
-                                            domainMultiEntryBlockList.add(domainDoubleEntry5);
-
-                                            //Log.i("BlockLists", "Domain ^ double entry block list added: " + domain + " , " + firstEntry1 + " , " + secondEntry);
-                                            //Log.i("BlockLists", "Domain ^ double entry block list added: " + domain + " , " + firstEntry2 + " , " + secondEntry);
-                                            //Log.i("BlockLists", "Domain ^ double entry block list added: " + domain + " , " + firstEntry3 + " , " + secondEntry);
-                                            //Log.i("BlockLists", "Domain ^ double entry block list added: " + domain + " , " + firstEntry4 + " , " + secondEntry);
-                                            //Log.i("BlockLists", "Domain ^ double entry block list added: " + domain + " , " + firstEntry5 + " , " + secondEntry);
-                                        } else {
-                                            String[] domainDoubleEntry = {domain, firstEntry, secondEntry};
-
-                                            domainMultiEntryBlockList.add(domainDoubleEntry);
-
-                                            //Log.i("BlockLists", "Domain double entry block list added: " + domain + " , " + firstEntry + " , " + secondEntry);
-                                        }
-                                    } else if (entry.endsWith("^")) {
-                                        String entryBase = entry.substring(0, entry.length() - 1);
-
-                                        String entry1 = entryBase + ":";
-                                        String entry2 = entryBase + "/";
-                                        String entry3 = entryBase + "?";
-                                        String entry4 = entryBase + "=";
-                                        String entry5 = entryBase + "&";
-
-                                        String[] domainEntry1 = {domain, entry1};
-                                        String[] domainEntry2 = {domain, entry2};
-                                        String[] domainEntry3 = {domain, entry3};
-                                        String[] domainEntry4 = {domain, entry4};
-                                        String[] domainEntry5 = {domain, entry5};
-
-                                        domainBlockList.add(domainEntry1);
-                                        domainBlockList.add(domainEntry2);
-                                        domainBlockList.add(domainEntry3);
-                                        domainBlockList.add(domainEntry4);
-                                        domainBlockList.add(domainEntry5);
-
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry1);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry2);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry3);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry4);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry5);
-                                    } else if (entry.startsWith("^")) {
-                                        String entryBase = entry.substring(1);
-
-                                        String entry1 = ":" + entryBase;
-                                        String entry2 = ":" + entryBase;
-                                        String entry3 = ":" + entryBase;
-                                        String entry4 = ":" + entryBase;
-                                        String entry5 = ":" + entryBase;
-
-                                        String[] domainEntry1 = {domain, entry1};
-                                        String[] domainEntry2 = {domain, entry2};
-                                        String[] domainEntry3 = {domain, entry3};
-                                        String[] domainEntry4 = {domain, entry4};
-                                        String[] domainEntry5 = {domain, entry5};
-
-                                        domainBlockList.add(domainEntry1);
-                                        domainBlockList.add(domainEntry2);
-                                        domainBlockList.add(domainEntry3);
-                                        domainBlockList.add(domainEntry4);
-                                        domainBlockList.add(domainEntry5);
-
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry1);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry2);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry3);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry4);
-                                        //Log.i("BlockLists", "Domain ^ block list added: " + domain + " , " + entry5);
-                                    } else if (entry.startsWith("|")) {
-                                        // Remove the initial `|`;
-                                        String entryBase = entry.substring(1);
-
-                                        //noinspection StatementWithEmptyBody
-                                        if (entryBase.equals("http://") || entryBase.equals("https://")) {
-                                            // Do nothing.  These entries will entirely block the website.
-                                            // Often the original entry blocks `$script` but Privacy Browser does not currently differentiate between scripts and other entries.
-                                        } else {
-                                            String[] domainEntry = {domain, entryBase};
-
-                                            domainInitialBlockList.add(domainEntry);
-
-                                            //Log.i("BlockLists", "Domain initial block list added: " + domain + " , " + entryBase);
-                                        }
-                                    } else if (entry.endsWith("|")) {
-                                        // Remove the final `|`.
-                                        String entryBase = entry.substring(0, entry.length() - 1);
-
-                                        String[] domainEntry = {domain, entryBase};
-
-                                        domainFinalBlockList.add(domainEntry);
-
-                                        Log.i("BlockLists", "Domain final block list added: " + domain + " , " + entryBase);
-                                    } else if (entry.contains("\\")) {
-                                        String[] domainEntry = {domain, entry};
-
-                                        domainRegularExpressionBlockList.add(domainEntry);
-
-                                        // Log.i("BlockLists", "Domain regular expression block list added: " + domain + " , " + entry);
-                                    } else {
-                                        String[] domainEntry = {domain, entry};
-
-                                        domainBlockList.add(domainEntry);
-
-                                        //Log.i("BlockLists", "Domain block list added: " + domain + " , " + entry);
-                                    }
-                                } while (domains.contains("|"));
-                            }
-                        }
-                    } else if (blockListEntry.contains("~")) {  // Whitelist entries.
-                        // Remove the filter options.
-                        blockListEntry = blockListEntry.substring(0, blockListEntry.indexOf("$"));
-
-                        // Strip any trailing `*`.
-                        if (blockListEntry.endsWith("*")) {
-                            blockListEntry = blockListEntry.substring(0, blockListEntry.length() -1);
-                        }
-
-                        if (blockListEntry.contains("*")) {
-                            int wildcardIndex = blockListEntry.indexOf("*");
-
-                            String firstEntry = blockListEntry.substring(0, wildcardIndex);
-                            String secondEntry = blockListEntry.substring(wildcardIndex + 1);
-
-                            if (firstEntry.endsWith("^")) {
-                                String firstEntryBase = firstEntry.substring(0, firstEntry.length() - 1);
-
-                                String firstEntry1 = firstEntryBase + ":";
-                                String firstEntry2 = firstEntryBase + "/";
-                                String firstEntry3 = firstEntryBase + "?";
-                                String firstEntry4 = firstEntryBase + "=";
-                                String firstEntry5 = firstEntryBase + "&";
-
-                                String[] doubleEntry1 = {firstEntry1, secondEntry};
-                                String[] doubleEntry2 = {firstEntry2, secondEntry};
-                                String[] doubleEntry3 = {firstEntry3, secondEntry};
-                                String[] doubleEntry4 = {firstEntry4, secondEntry};
-                                String[] doubleEntry5 = {firstEntry5, secondEntry};
-
-                                multiEntryWhiteList.add(doubleEntry1);
-                                multiEntryWhiteList.add(doubleEntry2);
-                                multiEntryWhiteList.add(doubleEntry3);
-                                multiEntryWhiteList.add(doubleEntry4);
-                                multiEntryWhiteList.add(doubleEntry5);
-
-                                //Log.i("BlockLists", "Multi entry white list added: " + firstEntry1 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry white list added: " + firstEntry2 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry white list added: " + firstEntry3 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry white list added: " + firstEntry4 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry white list added: " + firstEntry5 + " , " + secondEntry);
-                            } else {
-                                String[] doubleEntry = {firstEntry, secondEntry};
-
-                                multiEntryWhiteList.add(doubleEntry);
-
-                                //Log.i("BlockLists", "Multi entry white list added: " + firstEntry + " , " + secondEntry);
-                            }
-                        } else {
-                            if (blockListEntry.endsWith("^")) {
-                                String blockListEntryBase = blockListEntry.substring(0, blockListEntry.length() - 1);
-
-                                String blockListEntry1 = blockListEntryBase + ":";
-                                String blockListEntry2 = blockListEntryBase + "/";
-                                String blockListEntry3 = blockListEntryBase + "?";
-                                String blockListEntry4 = blockListEntryBase + "=";
-                                String blockListEntry5 = blockListEntryBase + "&";
-
-                                mainWhiteList.add(blockListEntry1);
-                                mainWhiteList.add(blockListEntry2);
-                                mainWhiteList.add(blockListEntry3);
-                                mainWhiteList.add(blockListEntry4);
-                                mainWhiteList.add(blockListEntry5);
-
-                                // Log.i("BlockLists", "Main white list added: " + blockListEntry1);
-                                // Log.i("BlockLists", "Main white list added: " + blockListEntry2);
-                                // Log.i("BlockLists", "Main white list added: " + blockListEntry3);
-                                // Log.i("BlockLists", "Main white list added: " + blockListEntry4);
-                                // Log.i("BlockLists", "Main white list added: " + blockListEntry5);
-                            } else {
-                                mainWhiteList.add(blockListEntry);
-
-                                // Log.i("BlockLists", "Main white list added: " + blockListEntry);
-                            }
-                        }
-                    } else if (blockListEntry.contains("\\")) {  // Regular expressions.
-                        // Remove the filter options.
-                        blockListEntry = blockListEntry.substring(0, blockListEntry.indexOf("$"));
-
-                        regularExpressionBlockList.add(blockListEntry);
-
-                        //Log.i("BlockLists", "Regular expression list added: " + blockListEntry);
-                    } else {
-                        // Remove the filter options.
-                        blockListEntry = blockListEntry.substring(0, blockListEntry.indexOf("$"));
-
-                        // Strip any trailing `*` or `^`.  Many of these entries have `^$`, which seem redundant for the purposes of Privacy Browser.
-                        if (blockListEntry.endsWith("*") || blockListEntry.endsWith("^")) {
-                            blockListEntry = blockListEntry.substring(0, blockListEntry.length() - 1);
-                        }
-
-                        if (blockListEntry.contains("*")) {  // Use a multi entry list.
-                            int wildcardIndex = blockListEntry.indexOf("*");
-
-                            String firstEntry = blockListEntry.substring(0, wildcardIndex);
-                            String secondEntry = blockListEntry.substring(wildcardIndex + 1);
-
-                            // Remove `.*` if it appears at the beginning of the second entry.
-                            if (secondEntry.startsWith(".*")) {
-                                secondEntry = secondEntry.substring(2);
-                            }
-
-                            // Create a third entry if required.
-                            if (secondEntry.contains("*")) {
-                                wildcardIndex = secondEntry.indexOf("*");
-
-                                String thirdEntry = secondEntry.substring(wildcardIndex + 1);
-                                secondEntry = secondEntry.substring(0, wildcardIndex);
-
-                                if (firstEntry.endsWith("^")) {
-                                    String firstEntryBase = firstEntry.substring(0, firstEntry.length() - 1);
-
-                                    String firstEntry1 = firstEntryBase + ":";
-                                    String firstEntry2 = firstEntryBase + "/";
-                                    String firstEntry3 = firstEntryBase + "?";
-                                    String firstEntry4 = firstEntryBase + "=";
-                                    String firstEntry5 = firstEntryBase + "&";
-
-                                    if (thirdEntry.endsWith("|")) {
-                                        thirdEntry = thirdEntry.substring(0, thirdEntry.length() - 1);
-
-                                        String[] tripleEntry1 = {firstEntry1, secondEntry, thirdEntry};
-                                        String[] tripleEntry2 = {firstEntry2, secondEntry, thirdEntry};
-                                        String[] tripleEntry3 = {firstEntry3, secondEntry, thirdEntry};
-                                        String[] tripleEntry4 = {firstEntry4, secondEntry, thirdEntry};
-                                        String[] tripleEntry5 = {firstEntry5, secondEntry, thirdEntry};
-
-                                        multiEntryFinalBlockList.add(tripleEntry1);
-                                        multiEntryFinalBlockList.add(tripleEntry2);
-                                        multiEntryFinalBlockList.add(tripleEntry3);
-                                        multiEntryFinalBlockList.add(tripleEntry4);
-                                        multiEntryFinalBlockList.add(tripleEntry5);
-
-                                        //Log.i("BlockLists", "Multi entry final tripple block list added: " + firstEntry1 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry final tripple block list added: " + firstEntry2 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry final tripple block list added: " + firstEntry3 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry final tripple block list added: " + firstEntry4 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry final tripple block list added: " + firstEntry5 + " , " + secondEntry + " , " + thirdEntry);
-                                    } else {
-                                        String[] tripleEntry1 = {firstEntry1, secondEntry, thirdEntry};
-                                        String[] tripleEntry2 = {firstEntry2, secondEntry, thirdEntry};
-                                        String[] tripleEntry3 = {firstEntry3, secondEntry, thirdEntry};
-                                        String[] tripleEntry4 = {firstEntry4, secondEntry, thirdEntry};
-                                        String[] tripleEntry5 = {firstEntry5, secondEntry, thirdEntry};
-
-                                        multiEntryBlockList.add(tripleEntry1);
-                                        multiEntryBlockList.add(tripleEntry2);
-                                        multiEntryBlockList.add(tripleEntry3);
-                                        multiEntryBlockList.add(tripleEntry4);
-                                        multiEntryBlockList.add(tripleEntry5);
-
-                                        //Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry1 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry2 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry3 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry4 + " , " + secondEntry + " , " + thirdEntry);
-                                        //Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry5 + " , " + secondEntry + " , " + thirdEntry);
-                                    }
-                                } else {
-                                    String[] tripleEntry = {firstEntry, secondEntry, thirdEntry};
-
-                                    multiEntryBlockList.add(tripleEntry);
-
-                                    // Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry + " , " + secondEntry + " , " + thirdEntry);
-                                }
-                            } else {  // This is a double entry.
-                                if (firstEntry.startsWith("|")) {
-                                    String[] doubleEntry = {firstEntry.substring(1), secondEntry};
-
-                                    multiEntryInitialBlockList.add(doubleEntry);
-
-                                    //Log.i("BlockLists", "Multi entry initial block list added: " + firstEntry.substring(1) + " , " + secondEntry);
-                                } else if (firstEntry.startsWith("^")) {
-                                    String firstEntryBase = firstEntry.substring(1);
-
-                                    String firstEntry1 = ":" + firstEntryBase;
-                                    String firstEntry2 = "/" + firstEntryBase;
-                                    String firstEntry3 = "?" + firstEntryBase;
-                                    String firstEntry4 = "=" + firstEntryBase;
-                                    String firstEntry5 = "&" + firstEntryBase;
-
-                                    String[] doubleEntry1 = {firstEntry1, secondEntry};
-                                    String[] doubleEntry2 = {firstEntry2, secondEntry};
-                                    String[] doubleEntry3 = {firstEntry3, secondEntry};
-                                    String[] doubleEntry4 = {firstEntry4, secondEntry};
-                                    String[] doubleEntry5 = {firstEntry5, secondEntry};
-
-                                    multiEntryBlockList.add(doubleEntry1);
-                                    multiEntryBlockList.add(doubleEntry2);
-                                    multiEntryBlockList.add(doubleEntry3);
-                                    multiEntryBlockList.add(doubleEntry4);
-                                    multiEntryBlockList.add(doubleEntry5);
-
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry1 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry2 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry3 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry4 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry5 + " , " + secondEntry);
-                                } else if (firstEntry.endsWith("^")) {
-                                    String firstEntryBase = firstEntry.substring(0, firstEntry.length() - 1);
-
-                                    String firstEntry1 = firstEntryBase + ":";
-                                    String firstEntry2 = firstEntryBase + "/";
-                                    String firstEntry3 = firstEntryBase + "?";
-                                    String firstEntry4 = firstEntryBase + "=";
-                                    String firstEntry5 = firstEntryBase + "&";
-
-                                    String[] doubleEntry1 = {firstEntry1, secondEntry};
-                                    String[] doubleEntry2 = {firstEntry2, secondEntry};
-                                    String[] doubleEntry3 = {firstEntry3, secondEntry};
-                                    String[] doubleEntry4 = {firstEntry4, secondEntry};
-                                    String[] doubleEntry5 = {firstEntry5, secondEntry};
-
-                                    multiEntryBlockList.add(doubleEntry1);
-                                    multiEntryBlockList.add(doubleEntry2);
-                                    multiEntryBlockList.add(doubleEntry3);
-                                    multiEntryBlockList.add(doubleEntry4);
-                                    multiEntryBlockList.add(doubleEntry5);
-
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry1 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry2 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry3 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry4 + " , " + secondEntry);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry5 + " , " + secondEntry);
-                                } else if (secondEntry.startsWith("^")) {
-                                    String secondEntryBase = secondEntry.substring(1);
-
-                                    String secondEntry1 = ":" + secondEntryBase;
-                                    String secondEntry2 = "/" + secondEntryBase;
-                                    String secondEntry3 = "?" + secondEntryBase;
-                                    String secondEntry4 = "=" + secondEntryBase;
-                                    String secondEntry5 = "&" + secondEntryBase;
-
-                                    String[] doubleEntry1 = {firstEntry, secondEntry1};
-                                    String[] doubleEntry2 = {firstEntry, secondEntry2};
-                                    String[] doubleEntry3 = {firstEntry, secondEntry3};
-                                    String[] doubleEntry4 = {firstEntry, secondEntry4};
-                                    String[] doubleEntry5 = {firstEntry, secondEntry5};
-
-                                    multiEntryBlockList.add(doubleEntry1);
-                                    multiEntryBlockList.add(doubleEntry2);
-                                    multiEntryBlockList.add(doubleEntry3);
-                                    multiEntryBlockList.add(doubleEntry4);
-                                    multiEntryBlockList.add(doubleEntry5);
-
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry1);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry2);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry3);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry4);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry5);
-                                } else if (secondEntry.endsWith("^")) {
-                                    String secondEntryBase = secondEntry.substring(0, secondEntry.length() - 1);
-
-                                    String secondEntry1 = secondEntryBase + ":";
-                                    String secondEntry2 = secondEntryBase + "/";
-                                    String secondEntry3 = secondEntryBase + "?";
-                                    String secondEntry4 = secondEntryBase + "=";
-                                    String secondEntry5 = secondEntryBase + "&";
-
-                                    String[] doubleEntry1 = {firstEntry, secondEntry1};
-                                    String[] doubleEntry2 = {firstEntry, secondEntry2};
-                                    String[] doubleEntry3 = {firstEntry, secondEntry3};
-                                    String[] doubleEntry4 = {firstEntry, secondEntry4};
-                                    String[] doubleEntry5 = {firstEntry, secondEntry5};
-
-                                    String[] doubleEntryFinal = {firstEntry, secondEntryBase};
-
-                                    multiEntryBlockList.add(doubleEntry1);
-                                    multiEntryBlockList.add(doubleEntry2);
-                                    multiEntryBlockList.add(doubleEntry3);
-                                    multiEntryBlockList.add(doubleEntry4);
-                                    multiEntryBlockList.add(doubleEntry5);
-
-                                    multiEntryFinalBlockList.add(doubleEntryFinal);
-
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry1);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry2);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry3);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry4);
-                                    //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry5);
-
-                                    //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry + " , " + secondEntryBase);
-                                } else {
-                                    String[] doubleEntry = {firstEntry, secondEntry};
-
-                                    multiEntryBlockList.add(doubleEntry);
-
-                                    //Log.i("BlockLists", "Multi entry block list added: " + firstEntry + " , " + secondEntry);
-                                }
-                            }
-                        } else if (blockListEntry.startsWith("|")) {  // Populate the initial block list.
-                            // Strip the initial `|`.
-                            blockListEntry = blockListEntry.substring(1);
-
-                            // Populate the initial block list.
-                            initialBlockList.add(blockListEntry);
-
-                            //Log.i("BlockLists", "Initial block list added: " + blockListEntry);
-                        } else {  // Populate the main block list.
-                            mainBlockList.add(blockListEntry);
-
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry);
-                        }
-                    }
-                } else {  // Populate the standard lists.
-                    // Strip out any initial `||`.  These will be treated like any other entry.
-                    if (blockListEntry.startsWith("||")) {
-                        blockListEntry = blockListEntry.substring(2);
-                    }
-
-                    // Strip out any initial `*`.
-                    if (blockListEntry.startsWith("*")) {
-                        blockListEntry = blockListEntry.substring(1);
-                    }
-
-                    // Strip out any trailing `*`.
-                    if (blockListEntry.endsWith("*")) {
-                        blockListEntry = blockListEntry.substring(0, blockListEntry.length() - 1);
-                    }
-
-                    if (blockListEntry.contains("*")) {  // Entries that contain a `*` in the middle have to be treated specially.
-                        int wildcardIndex = blockListEntry.indexOf("*");
-
-                        String firstEntry = blockListEntry.substring(0, wildcardIndex);
-                        String secondEntry = blockListEntry.substring(wildcardIndex + 1);
-
-                        // Remove `.*` if it appears at the beginning of the second entry.
-                        if (secondEntry.startsWith(".*")) {
-                            secondEntry = secondEntry.substring(2);
-                        }
-
-                        // Create a third entry if required.
-                        if (secondEntry.contains("*")) {
-                            wildcardIndex = secondEntry.indexOf("*");
-
-                            String thirdEntry = secondEntry.substring(wildcardIndex + 1);
-                            secondEntry = secondEntry.substring(0, wildcardIndex);
-
-                            String[] tripleEntry = {firstEntry, secondEntry, thirdEntry};
-
-                            multiEntryBlockList.add(tripleEntry);
-
-                            //Log.i("BlockLists", "Multi entry tripple block list added: " + firstEntry + " , " + secondEntry + " , " + thirdEntry);
-                        } else {
-                            if (firstEntry.startsWith("|")) {
-                                String[] doubleEntry = {firstEntry.substring(1), secondEntry};
-
-                                multiEntryInitialBlockList.add(doubleEntry);
-
-                                //Log.i("BlockLists", "Multi entry initial block list added: " + firstEntry.substring(1) + " , " + secondEntry);
-                            } else if (firstEntry.startsWith("^")) {
-                                String firstEntryBase = firstEntry.substring(1);
-
-                                String firstEntry1 = ":" + firstEntryBase;
-                                String firstEntry2 = "/" + firstEntryBase;
-                                String firstEntry3 = "?" + firstEntryBase;
-                                String firstEntry4 = "=" + firstEntryBase;
-                                String firstEntry5 = "&" + firstEntryBase;
-
-                                String[] doubleEntry1 = {firstEntry1, secondEntry};
-                                String[] doubleEntry2 = {firstEntry2, secondEntry};
-                                String[] doubleEntry3 = {firstEntry3, secondEntry};
-                                String[] doubleEntry4 = {firstEntry4, secondEntry};
-                                String[] doubleEntry5 = {firstEntry5, secondEntry};
-
-                                multiEntryBlockList.add(doubleEntry1);
-                                multiEntryBlockList.add(doubleEntry2);
-                                multiEntryBlockList.add(doubleEntry3);
-                                multiEntryBlockList.add(doubleEntry4);
-                                multiEntryBlockList.add(doubleEntry5);
-
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry1 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry2 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry3 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry4 + " , " + secondEntry);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry5 + " , " + secondEntry);
-                            } else if (secondEntry.startsWith("^")) {
-                                String secondEntryBase = secondEntry.substring(1);
-
-                                String secondEntry1 = ":" + secondEntryBase;
-                                String secondEntry2 = "/" + secondEntryBase;
-                                String secondEntry3 = "?" + secondEntryBase;
-                                String secondEntry4 = "=" + secondEntryBase;
-                                String secondEntry5 = "&" + secondEntryBase;
-
-                                String[] doubleEntry1 = {firstEntry, secondEntry1};
-                                String[] doubleEntry2 = {firstEntry, secondEntry2};
-                                String[] doubleEntry3 = {firstEntry, secondEntry3};
-                                String[] doubleEntry4 = {firstEntry, secondEntry4};
-                                String[] doubleEntry5 = {firstEntry, secondEntry5};
-
-                                multiEntryBlockList.add(doubleEntry1);
-                                multiEntryBlockList.add(doubleEntry2);
-                                multiEntryBlockList.add(doubleEntry3);
-                                multiEntryBlockList.add(doubleEntry4);
-                                multiEntryBlockList.add(doubleEntry5);
-
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry1);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry2);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry3);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry4);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry5);
-                            } else if (secondEntry.endsWith("^")) {
-                                String secondEntryBase = secondEntry.substring(0, secondEntry.length() - 1);
-
-                                String secondEntry1 = secondEntryBase + ":";
-                                String secondEntry2 = secondEntryBase + "/";
-                                String secondEntry3 = secondEntryBase + "?";
-                                String secondEntry4 = secondEntryBase + "=";
-                                String secondEntry5 = secondEntryBase + "&";
-
-                                String[] doubleEntry1 = {firstEntry, secondEntry1};
-                                String[] doubleEntry2 = {firstEntry, secondEntry2};
-                                String[] doubleEntry3 = {firstEntry, secondEntry3};
-                                String[] doubleEntry4 = {firstEntry, secondEntry4};
-                                String[] doubleEntry5 = {firstEntry, secondEntry5};
-
-                                String[] doubleEntryFinal = {firstEntry, secondEntryBase};
-
-                                multiEntryBlockList.add(doubleEntry1);
-                                multiEntryBlockList.add(doubleEntry2);
-                                multiEntryBlockList.add(doubleEntry3);
-                                multiEntryBlockList.add(doubleEntry4);
-                                multiEntryBlockList.add(doubleEntry5);
-
-                                multiEntryFinalBlockList.add(doubleEntryFinal);
-
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry1);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry2);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry3);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry4);
-                                //Log.i("BlockLists", "Multi entry ^ block list added: " + firstEntry + " , " + secondEntry5);
-
-                                //Log.i("BlockLists", "Multi entry final block list added: " + firstEntry + " , " + secondEntryBase);
-                            } else {
-                                String[] doubleEntry = {firstEntry, secondEntry};
-
-                                multiEntryBlockList.add(doubleEntry);
-
-                                //Log.i("BlockLists", "Multi entry block list added: " + firstEntry + " , " + secondEntry);
-                            }
-                        }
-                    } else {
-                        if (blockListEntry.endsWith("^")) {  // `^` matches against `:`, `/`, `?`, `=`, `&`, and the end of the URL.
-                            // Add all the variations to the main block list.
-                            mainBlockList.add(blockListEntry.substring(0, blockListEntry.length() - 1) + ":");
-                            mainBlockList.add(blockListEntry.substring(0, blockListEntry.length() - 1) + "/");
-                            mainBlockList.add(blockListEntry.substring(0, blockListEntry.length() - 1) + "?");
-                            mainBlockList.add(blockListEntry.substring(0, blockListEntry.length() - 1) + "=");
-                            mainBlockList.add(blockListEntry.substring(0, blockListEntry.length() - 1) + "&");
-
-                            // Add the base block entry to the final block list.
-                            finalBlockList.add(blockListEntry.substring(0, blockListEntry.length() - 1));
-
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry.substring(0, blockListEntry.length() - 1) + ":");
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry.substring(0, blockListEntry.length() - 1) + "/");
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry.substring(0, blockListEntry.length() - 1) + "?");
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry.substring(0, blockListEntry.length() - 1) + "=");
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry.substring(0, blockListEntry.length() - 1) + "&");
-                            //Log.i("BlockLists", "Final block list added: " + blockListEntry.substring(0, blockListEntry.length() - 1));
-                        } else {  // This is a basic entry.
-                            // Add the modified block list entry to the main block list.
-                            mainBlockList.add(blockListEntry);
-
-                            //Log.i("BlockLists", "Main block list added: " + blockListEntry);
-                        }
-                    }
-                }
-            }
-
-            // Close `bufferedReader`.
-            bufferedReader.close();
-        } catch (IOException e) {
-            // The asset exists, so the `IOException` will never be thrown.
-        }
-
-        Log.i("BlockLists", "Finish populating block lists");
-
         // Set the content view.
         setContentView(R.layout.main_drawerlayout);
 
@@ -1316,7 +599,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
 
                             /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
                              * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
-                             * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
+                             * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically re-hides them after they are shown.
                              */
                             rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
 
@@ -1545,213 +828,337 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         // drawerToggle creates the hamburger icon at the start of the AppBar.
         drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation_drawer, R.string.close_navigation_drawer);
 
-        mainWebView.setWebViewClient(new WebViewClient() {
-            // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
-            // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
-            @SuppressWarnings("deprecation")
-            @Override
-            public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                if (url.startsWith("mailto:")) {  // Load the email address in an external email program.
-                    // Use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
-                    Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
+        // Get a handle for the progress bar.
+        final ProgressBar progressBar = findViewById(R.id.progress_bar);
 
-                    // Parse the url and set it as the data for the `Intent`.
-                    emailIntent.setData(Uri.parse(url));
+        mainWebView.setWebChromeClient(new WebChromeClient() {
+            // Update the progress bar when a page is loading.
+            @Override
+            public void onProgressChanged(WebView view, int progress) {
+                // Inject the night mode CSS if night mode is enabled.
+                if (nightMode) {
+                    // `background-color: #212121` sets the background to be dark gray.  `color: #BDBDBD` sets the text color to be light gray.  `box-shadow: none` removes a lower underline on links
+                    // used by WordPress.  `text-decoration: none` removes all text underlines.  `text-shadow: none` removes text shadows, which usually have a hard coded color.
+                    // `border: none` removes all borders, which can also be used to underline text.
+                    // `a {color: #1565C0}` sets links to be a dark blue.  `!important` takes precedent over any existing sub-settings.
+                    mainWebView.evaluateJavascript("(function() {var parent = document.getElementsByTagName('head').item(0); var style = document.createElement('style'); style.type = 'text/css'; " +
+                            "style.innerHTML = '* {background-color: #212121 !important; color: #BDBDBD !important; box-shadow: none !important; text-decoration: none !important;" +
+                            "text-shadow: none !important; border: none !important;} a {color: #1565C0 !important;}'; parent.appendChild(style)})()", value -> {
+                                // Initialize a `Handler` to display `mainWebView`.
+                                Handler displayWebViewHandler = new Handler();
 
-                    // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
-                    emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                                // Setup a `Runnable` to display `mainWebView` after a delay to allow the CSS to be applied.
+                                Runnable displayWebViewRunnable = () -> {
+                                    // Only display `mainWebView` if the progress bar is one.  This prevents the display of the `WebView` while it is still loading.
+                                    if (progressBar.getVisibility() == View.GONE) {
+                                        mainWebView.setVisibility(View.VISIBLE);
+                                    }
+                                };
 
-                    // Make it so.
-                    startActivity(emailIntent);
+                                // Use `displayWebViewHandler` to delay the displaying of `mainWebView` for 500 milliseconds.
+                                displayWebViewHandler.postDelayed(displayWebViewRunnable, 500);
+                            });
+                }
 
-                    // Returning `true` indicates the application is handling the URL.
-                    return true;
-                } else if (url.startsWith("tel:")) {  // Load the phone number in the dialer.
-                    // `ACTION_DIAL` open the dialer and loads the phone number, but waits for the user to place the call.
-                    Intent dialIntent = new Intent(Intent.ACTION_DIAL);
+                // Update the progress bar.
+                progressBar.setProgress(progress);
 
-                    // Add the phone number to the intent.
-                    dialIntent.setData(Uri.parse(url));
+                // Set the visibility of the progress bar.
+                if (progress < 100) {
+                    // Show the progress bar.
+                    progressBar.setVisibility(View.VISIBLE);
+                } else {
+                    // Hide the progress bar.
+                    progressBar.setVisibility(View.GONE);
 
-                    // `FLAG_ACTIVITY_NEW_TASK` opens the dialer in a new task instead as part of Privacy Browser.
-                    dialIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                    // Display `mainWebView` if night mode is disabled.
+                    // Because of a race condition between `applyDomainSettings` and `onPageStarted`, when night mode is set by domain settings the `WebView` may be hidden even if night mode is not
+                    // currently enabled.
+                    if (!nightMode) {
+                        mainWebView.setVisibility(View.VISIBLE);
+                    }
 
-                    // Make it so.
-                    startActivity(dialIntent);
+                    //Stop the `SwipeToRefresh` indicator if it is running
+                    swipeRefreshLayout.setRefreshing(false);
+                }
+            }
 
-                    // Returning `true` indicates the application is handling the URL.
-                    return true;
-                } else {  // Load the URL in Privacy Browser.
-                    // Apply the domain settings for the new URL.
-                    applyDomainSettings(url);
+            // Set the favorite icon when it changes.
+            @Override
+            public void onReceivedIcon(WebView view, Bitmap icon) {
+                // Only update the favorite icon if the website has finished loading.
+                if (progressBar.getVisibility() == View.GONE) {
+                    // Save a copy of the favorite icon.
+                    favoriteIconBitmap = icon;
 
-                    // Returning `false` causes the current `WebView` to handle the URL and prevents it from adding redirects to the history list.
-                    return false;
+                    // Place the favorite icon in the appBar.
+                    favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
                 }
             }
 
-            // Check requests against the block lists.  The deprecated `shouldInterceptRequest` must be used until minimum API >= 21.
-            @SuppressWarnings("deprecation")
+            // Save a copy of the title when it changes.
             @Override
-            public WebResourceResponse shouldInterceptRequest(WebView view, String url){
-                if (adBlockerEnabled) {  // Check the block lists.
-                    Log.i("BlockLists", "Begin check for " + url);
-
-                    Uri uri = Uri.parse(url);
-                    String domain = uri.getHost();
+            public void onReceivedTitle(WebView view, String title) {
+                // Save a copy of the title.
+                webViewTitle = title;
+            }
 
-                    for (String whiteListEntry : mainWhiteList) {
-                        if (url.contains(whiteListEntry)) {
-                            Log.i("BlockLists", "Request allowed by main white list: " + whiteListEntry + " | " + url);
+            // Enter full screen video
+            @Override
+            public void onShowCustomView(View view, CustomViewCallback callback) {
+                // Pause the ad if this is the free flavor.
+                if (BuildConfig.FLAVOR.contentEquals("free")) {
+                    BannerAd.pauseAd(adView);
+                }
 
-                            // `Return null` loads the requested resource.
-                            return null;
-                        }
-                    }
+                // Remove the translucent overlays.
+                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
 
-                    for (String[] whiteListEntry : multiEntryWhiteList) {
-                        if (whiteListEntry.length == 2) {  // There are two entries.
-                            if (url.contains(whiteListEntry[0]) && url.contains(whiteListEntry[1])) {
-                                Log.i("BlockLists", "Request allowed by multi entry white list:  " + whiteListEntry[0] + " , " + whiteListEntry[1] + " | " + url);
+                // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
+                drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
 
-                                // `Return null` loads the requested resource.
-                                return null;
-                            }
-                        } else {  // There are three entries.
-                            if (url.contains(whiteListEntry[0]) && url.contains(whiteListEntry[1]) && url.contains(whiteListEntry[2])) {
-                                Log.i("BlockLists", "Request allowed by multi entry white list:  " + whiteListEntry[0] + " , " + whiteListEntry[1] + " , " + whiteListEntry[2] + " | " + url);
+                /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+                 * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
+                 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically re-hides them after they are shown.
+                 */
+                rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
 
-                                // `Return null` loads the requested resource.
-                                return null;
-                            }
-                        }
-                    }
+                // Set `rootCoordinatorLayout` to fill the entire screen.
+                rootCoordinatorLayout.setFitsSystemWindows(false);
 
-                    for (String blockListEntry : mainBlockList) {
-                        if (url.contains(blockListEntry)) {
-                            Log.i("BlockLists", "Request blocked by main block list: " + blockListEntry + " | " + url);
+                // Add `view` to `fullScreenVideoFrameLayout` and display it on the screen.
+                fullScreenVideoFrameLayout.addView(view);
+                fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
+            }
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+            // Exit full screen video
+            public void onHideCustomView() {
+                // Hide `fullScreenVideoFrameLayout`.
+                fullScreenVideoFrameLayout.removeAllViews();
+                fullScreenVideoFrameLayout.setVisibility(View.GONE);
 
-                    for (String blockListEntry : initialBlockList) {
-                        if (url.startsWith(blockListEntry)) {
-                            Log.i("BlockLists", "Request blocked by initial block list: " + blockListEntry + " | " + url);
+                // Add the translucent status flag.  This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+                // Set `rootCoordinatorLayout` to fit inside the status and navigation bars.  This also clears the `SYSTEM_UI` flags.
+                rootCoordinatorLayout.setFitsSystemWindows(true);
 
-                    for (String blockListEntry : finalBlockList) {
-                        if (url.endsWith(blockListEntry)) {
-                            Log.i("BlockLists", "Request blocked by final block list: " + blockListEntry + " | " + url);
+                // Show the ad if this is the free flavor.
+                if (BuildConfig.FLAVOR.contentEquals("free")) {
+                    // Reload the ad.  Because the screen may have rotated, we need to use `reloadAfterRotate`.
+                    BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+                    // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
+                    adView = findViewById(R.id.adview);
+                }
+            }
+        });
 
-                    for (String[] blockListEntry : multiEntryBlockList) {
-                        if (blockListEntry.length == 2) {  // There are two entries.
-                            if (url.contains(blockListEntry[0]) && url.contains(blockListEntry[1])) {
-                                Log.i("BlockLists", "Request blocked by multi entry block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Register `mainWebView` for a context menu.  This is used to see link targets and download images.
+        registerForContextMenu(mainWebView);
 
-                                // Return an empty `WebResourceResponse`.
-                                return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                            }
-                        } else {  // There are three entries.
-                            if (url.contains(blockListEntry[0]) && url.contains(blockListEntry[1]) && url.contains(blockListEntry[2])) {
-                                Log.i("BlockLists", "Request blocked by multi entry block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " , " + blockListEntry[2] + " | " + url);
+        // Allow the downloading of files.
+        mainWebView.setDownloadListener((String url, String userAgent, String contentDisposition, String mimetype, long contentLength) -> {
+            // Check to see if the WRITE_EXTERNAL_STORAGE permission has already been granted.
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) {
+                // The WRITE_EXTERNAL_STORAGE permission needs to be requested.
+
+                // Store the variables for future use by `onRequestPermissionsResult()`.
+                downloadUrl = url;
+                downloadContentDisposition = contentDisposition;
+                downloadContentLength = contentLength;
+
+                // Show a dialog if the user has previously denied the permission.
+                if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {  // Show a dialog explaining the request first.
+                    // Get a handle for the download location permission alert dialog and set the download type to DOWNLOAD_FILE.
+                    DialogFragment downloadLocationPermissionDialogFragment = DownloadLocationPermissionDialog.downloadType(DownloadLocationPermissionDialog.DOWNLOAD_FILE);
+
+                    // Show the download location permission alert dialog.  The permission will be requested when the the dialog is closed.
+                    downloadLocationPermissionDialogFragment.show(getFragmentManager(), getString(R.string.download_location));
+                } else {  // Show the permission request directly.
+                    // Request the permission.  The download dialog will be launched by `onRequestPermissionResult()`.
+                    ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_FILE_REQUEST_CODE);
+                }
+            } else {  // The WRITE_EXTERNAL_STORAGE permission has already been granted.
+                // Get a handle for the download file alert dialog.
+                AppCompatDialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(url, contentDisposition, contentLength);
 
-                                // Return an empty `WebResourceResponse`.
-                                return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                            }
-                        }
-                    }
+                // Show the download file alert dialog.
+                downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+            }
+        });
 
-                    for (String[] blockListEntry : multiEntryInitialBlockList) {
-                        if (url.startsWith(blockListEntry[0]) && url.contains(blockListEntry[1])) {
-                            Log.i("BlockLists", "Request blocked by multi entry initial block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Allow pinch to zoom.
+        mainWebView.getSettings().setBuiltInZoomControls(true);
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Hide zoom controls.
+        mainWebView.getSettings().setDisplayZoomControls(false);
 
-                    for (String[] blockListEntry : multiEntryFinalBlockList) {
-                        if (url.contains(blockListEntry[0]) && url.endsWith(blockListEntry[1])) {
-                            Log.i("BlockLists", "Request blocked by multi entry final block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Set `mainWebView` to use a wide viewport.  Otherwise, some web pages will be scrunched and some content will render outside the screen.
+        mainWebView.getSettings().setUseWideViewPort(true);
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Set `mainWebView` to load in overview mode (zoomed out to the maximum width).
+        mainWebView.getSettings().setLoadWithOverviewMode(true);
 
-                    for (String[] blockListEntry : domainBlockList) {
-                        if (domain.endsWith(blockListEntry[0]) && url.contains(blockListEntry[1])) {
-                            Log.i("BlockLists", "Request blocked by domain block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Explicitly disable geolocation.
+        mainWebView.getSettings().setGeolocationEnabled(false);
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Initialize cookieManager.
+        cookieManager = CookieManager.getInstance();
 
-                    for (String[] blockListEntry : domainInitialBlockList) {
-                        if (domain.endsWith(blockListEntry[0]) && url.startsWith(blockListEntry[1])) {
-                            Log.i("BlockLists", "Request blocked by domain initial block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Replace the header that `WebView` creates for `X-Requested-With` with a null value.  The default value is the application ID (com.stoutner.privacybrowser.standard).
+        customHeaders.put("X-Requested-With", "");
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Initialize the default preference values the first time the program is run.  `this` is the context.  `false` keeps this command from resetting any current preferences back to default.
+        PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
 
-                    for (String[] blockListEntry : domainFinalBlockList) {
-                        if (domain.endsWith(blockListEntry[0]) && url.endsWith(blockListEntry[2])) {
-                            Log.i("BlockLists", "Request blocked by domain final block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Get the intent that started the app.
+        final Intent launchingIntent = getIntent();
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Extract the launching intent data as `launchingIntentUriData`.
+        final Uri launchingIntentUriData = launchingIntent.getData();
 
-                    for (String[] blockListEntry : domainMultiEntryBlockList) {
-                        if (domain.endsWith(blockListEntry[0]) && url.contains(blockListEntry[1]) && url.contains(blockListEntry[2])) {
-                            Log.i("BlockLists", "Request blocked by domain multi entry block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " , " + blockListEntry[2] + " | " + url);
+        // Convert the launching intent URI data (if it exists) to a string and store it in `formattedUrlString`.
+        if (launchingIntentUriData != null) {
+            formattedUrlString = launchingIntentUriData.toString();
+        }
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Get a handle for the `Runtime`.
+        privacyBrowserRuntime = Runtime.getRuntime();
 
-                    for (String[] blockListEntry : domainRegularExpressionBlockList) {
-                        if (domain.endsWith(blockListEntry[0]) && Pattern.matches(blockListEntry[1], url)) {
-                            Log.i("BlockLists", "Request blocked by domain regular expression block list: " + blockListEntry[0] + " , " + blockListEntry[1] + " | " + url);
+        // Store the application's private data directory.
+        privateDataDirectoryString = getApplicationInfo().dataDir;
+        // `dataDir` will vary, but will be something like `/data/user/0/com.stoutner.privacybrowser.standard`, which links to `/data/data/com.stoutner.privacybrowser.standard`.
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
-                    }
+        // Initialize `inFullScreenBrowsingMode`, which is always false at this point because Privacy Browser never starts in full screen browsing mode.
+        inFullScreenBrowsingMode = false;
 
-                    for (String blockListEntry : regularExpressionBlockList) {
-                        if (Pattern.matches(blockListEntry, url)) {
-                            Log.i("BlockLists", "Request blocked by regular expression block list: " + blockListEntry + " | " + url);
+        // Initialize AdView for the free flavor.
+        adView = findViewById(R.id.adview);
 
-                            // Return an empty `WebResourceResponse`.
-                            return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
-                        }
+        // Initialize the privacy settings variables.
+        javaScriptEnabled = false;
+        firstPartyCookiesEnabled = false;
+        thirdPartyCookiesEnabled = false;
+        domStorageEnabled = false;
+        saveFormDataEnabled = false;
+        nightMode = false;
+
+        // Initialize `webViewTitle`.
+        webViewTitle = getString(R.string.no_title);
+
+        // Initialize `favoriteIconBitmap`.  `ContextCompat` must be used until API >= 21.
+        Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
+        BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
+        assert favoriteIconBitmapDrawable != null;
+        favoriteIconDefaultBitmap = favoriteIconBitmapDrawable.getBitmap();
+
+        // If the favorite icon is null, load the default.
+        if (favoriteIconBitmap == null) {
+            favoriteIconBitmap = favoriteIconDefaultBitmap;
+        }
+
+        // Apply the app settings from the shared preferences.
+        applyAppSettings();
+
+        // Instantiate the block list helper.
+        BlockListHelper blockListHelper = new BlockListHelper();
+
+        // Parse the block lists.
+        final ArrayList<List<String[]>> easyList = blockListHelper.parseBlockList(getAssets(), "blocklists/easylist.txt");
+        final ArrayList<List<String[]>> easyPrivacy = blockListHelper.parseBlockList(getAssets(), "blocklists/easyprivacy.txt");
+        final ArrayList<List<String[]>> fanboyAnnoyance = blockListHelper.parseBlockList(getAssets(), "blocklists/fanboy-annoyance.txt");
+        final ArrayList<List<String[]>> fanboySocial = blockListHelper.parseBlockList(getAssets(), "blocklists/fanboy-social.txt");
+
+        // Store the list versions.
+        easyListVersion = easyList.get(0).get(0)[0];
+        easyPrivacyVersion = easyPrivacy.get(0).get(0)[0];
+        fanboyAnnoyanceVersion = fanboyAnnoyance.get(0).get(0)[0];
+        fanboySocialVersion = fanboySocial.get(0).get(0)[0];
+
+        mainWebView.setWebViewClient(new WebViewClient() {
+            // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
+            // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
+            @SuppressWarnings("deprecation")
+            @Override
+            public boolean shouldOverrideUrlLoading(WebView view, String url) {
+                if (url.startsWith("mailto:")) {  // Load the email address in an external email program.
+                    // Use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
+                    Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
+
+                    // Parse the url and set it as the data for the `Intent`.
+                    emailIntent.setData(Uri.parse(url));
+
+                    // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
+                    emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+                    // Make it so.
+                    startActivity(emailIntent);
+
+                    // Returning `true` indicates the application is handling the URL.
+                    return true;
+                } else if (url.startsWith("tel:")) {  // Load the phone number in the dialer.
+                    // `ACTION_DIAL` open the dialer and loads the phone number, but waits for the user to place the call.
+                    Intent dialIntent = new Intent(Intent.ACTION_DIAL);
+
+                    // Add the phone number to the intent.
+                    dialIntent.setData(Uri.parse(url));
+
+                    // `FLAG_ACTIVITY_NEW_TASK` opens the dialer in a new task instead as part of Privacy Browser.
+                    dialIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+                    // Make it so.
+                    startActivity(dialIntent);
+
+                    // Returning `true` indicates the application is handling the URL.
+                    return true;
+                } else {  // Load the URL in Privacy Browser.
+                    // Apply the domain settings for the new URL.
+                    applyDomainSettings(url, true);
+
+                    // Returning `false` causes the current `WebView` to handle the URL and prevents it from adding redirects to the history list.
+                    return false;
+                }
+            }
+
+            // Check requests against the block lists.  The deprecated `shouldInterceptRequest` must be used until minimum API >= 21.
+            @SuppressWarnings("deprecation")
+            @Override
+            public WebResourceResponse shouldInterceptRequest(WebView view, String url){
+                // Create an empty web resource response to be used if the resource request is blocked.
+                WebResourceResponse emptyWebResourceResponse = new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
+
+                // Check EasyList if it is enabled.
+                if (easyListEnabled) {
+                    if (blockListHelper.isBlocked(formattedUrlString, url, easyList)) {
+                        // The resource request was blocked.  Return an empty web resource response.
+                        return emptyWebResourceResponse;
                     }
+                }
 
-                    Log.i("BlockLists", "End check for " + url);
+                // Check EasyPrivacy if it is enabled.
+                if (easyPrivacyEnabled) {
+                    if (blockListHelper.isBlocked(formattedUrlString, url, easyPrivacy)) {
+                        // The resource request was blocked.  Return an empty web resource response.
+                        return emptyWebResourceResponse;
+                    }
+                }
 
-                    // `return null` loads the requested resource.
-                    return null;
-                } else {  // Ad blocking is disabled.
-                    // `return null` loads the requested resource.
-                    return null;
+                // Check Fanboy’s Annoyance List if it is enabled.
+                if (fanboyAnnoyanceListEnabled) {
+                    if (blockListHelper.isBlocked(formattedUrlString, url, fanboyAnnoyance)) {
+                        // The resource request was blocked.  Return an empty web resource response.
+                        return emptyWebResourceResponse;
+                    }
+                } else if (fanboySocialBlockingListEnabled){  // Only check Fanboy’s Social Blocking List if Fanboy’s Annoyance List is disabled.
+                    if (blockListHelper.isBlocked(formattedUrlString, url, fanboySocial)) {
+                        // The resource request was blocked.  Return an empty web resource response.
+                        return emptyWebResourceResponse;
+                    }
                 }
+
+                // The resource request has not been blocked.  `return null` loads the requested resource.
+                return null;
             }
 
             // Handle HTTP authentication requests.
@@ -1767,8 +1174,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
 
             // Update the URL in urlTextBox when the page starts to load.
             @Override
-            public void onPageStarted(WebView view, String url, Bitmap favicon) {
-                // If night mode is enabled, hide `mainWebView` until after the night mode CSS is applied.
+            public void onPageStarted(WebView view, String url, Bitmap favicon) {// If night mode is enabled, hide `mainWebView` until after the night mode CSS is applied.
                 if (nightMode) {
                     mainWebView.setVisibility(View.INVISIBLE);
                 }
@@ -1789,7 +1195,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
 
                     // Apply any custom domain settings if the URL was loaded by navigating history.
                     if (navigatingHistory) {
-                        applyDomainSettings(url);
+                        applyDomainSettings(url, true);
                     }
 
                     // Set `urlIsLoading` to `true`, so that redirects while loading do not trigger changes in the user agent, which forces another reload of the existing page.
@@ -1800,371 +1206,167 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             // It is necessary to update `formattedUrlString` and `urlTextBox` after the page finishes loading because the final URL can change during load.
             @Override
             public void onPageFinished(WebView view, String url) {
-                // Reset `urlIsLoading`, which is used to prevent reloads on redirect if the user agent changes.
-                urlIsLoading = false;
-
-                // Clear the cache and history if Incognito Mode is enabled.
-                if (incognitoModeEnabled) {
-                    // Clear the cache.  `true` includes disk files.
-                    mainWebView.clearCache(true);
-
-                    // Clear the back/forward history.
-                    mainWebView.clearHistory();
-
-                    // Manually delete cache folders.
-                    try {
-                        // Delete the main `cache` folder.
-                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/cache");
-
-                        // Delete the `app_webview` folder, which contains an additional `WebView` cache.  See `https://code.google.com/p/android/issues/detail?id=233826&thanks=233826&ts=1486670530`.
-                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview");
-                    } catch (IOException e) {
-                        // Do nothing if an error is thrown.
-                    }
-                }
-
-                // Update `urlTextBox` and apply domain settings if not waiting on Orbot.
-                if (!waitingForOrbot) {
-                    // Check to see if `WebView` has set `url` to be `about:blank`.
-                    if (url.equals("about:blank")) {  // `WebView` is blank, so `formattedUrlString` should be `""` and `urlTextBox` should display a hint.
-                        // Set `formattedUrlString` to `""`.
-                        formattedUrlString = "";
-
-                        urlTextBox.setText(formattedUrlString);
-
-                        // Request focus for `urlTextBox`.
-                        urlTextBox.requestFocus();
-
-                        // Display the keyboard.
-                        inputMethodManager.showSoftInput(urlTextBox, 0);
-
-                        // Apply the domain settings.  This clears any settings from the previous domain.
-                        applyDomainSettings(formattedUrlString);
-                    } else {  // `WebView` has loaded a webpage.
-                        // Set `formattedUrlString`.
-                        formattedUrlString = url;
-
-                        // Only update `urlTextBox` if the user is not typing in it.
-                        if (!urlTextBox.hasFocus()) {
-                            // Display the formatted URL text.
-                            urlTextBox.setText(formattedUrlString);
-
-                            // Apply text highlighting to `urlTextBox`.
-                            highlightUrlText();
-                        }
-                    }
-
-                    // Store the SSL certificate so it can be accessed from `ViewSslCertificateDialog` and `PinnedSslCertificateMismatchDialog`.
-                    sslCertificate = mainWebView.getCertificate();
-
-                    // Check the current website SSL certificate against the pinned SSL certificate if there is a pinned SSL certificate the user has not chosen to ignore it for this session.
-                    if (pinnedDomainSslCertificate && !ignorePinnedSslCertificate) {
-                        // Initialize the current SSL certificate variables.
-                        String currentWebsiteIssuedToCName = "";
-                        String currentWebsiteIssuedToOName = "";
-                        String currentWebsiteIssuedToUName = "";
-                        String currentWebsiteIssuedByCName = "";
-                        String currentWebsiteIssuedByOName = "";
-                        String currentWebsiteIssuedByUName = "";
-                        Date currentWebsiteSslStartDate = null;
-                        Date currentWebsiteSslEndDate = null;
-
-
-                        // Extract the individual pieces of information from the current website SSL certificate if it is not null.
-                        if (sslCertificate != null) {
-                            currentWebsiteIssuedToCName = sslCertificate.getIssuedTo().getCName();
-                            currentWebsiteIssuedToOName = sslCertificate.getIssuedTo().getOName();
-                            currentWebsiteIssuedToUName = sslCertificate.getIssuedTo().getUName();
-                            currentWebsiteIssuedByCName = sslCertificate.getIssuedBy().getCName();
-                            currentWebsiteIssuedByOName = sslCertificate.getIssuedBy().getOName();
-                            currentWebsiteIssuedByUName = sslCertificate.getIssuedBy().getUName();
-                            currentWebsiteSslStartDate = sslCertificate.getValidNotBeforeDate();
-                            currentWebsiteSslEndDate = sslCertificate.getValidNotAfterDate();
-                        }
-
-                        // Initialize `String` variables to store the SSL certificate dates.  `Strings` are needed to compare the values below, which doesn't work with `Dates` if they are `null`.
-                        String currentWebsiteSslStartDateString = "";
-                        String currentWebsiteSslEndDateString = "";
-                        String pinnedDomainSslStartDateString = "";
-                        String pinnedDomainSslEndDateString = "";
-
-                        // Convert the `Dates` to `Strings` if they are not `null`.
-                        if (currentWebsiteSslStartDate != null) {
-                            currentWebsiteSslStartDateString = currentWebsiteSslStartDate.toString();
-                        }
-
-                        if (currentWebsiteSslEndDate != null) {
-                            currentWebsiteSslEndDateString = currentWebsiteSslEndDate.toString();
-                        }
-
-                        if (pinnedDomainSslStartDate != null) {
-                            pinnedDomainSslStartDateString = pinnedDomainSslStartDate.toString();
-                        }
-
-                        if (pinnedDomainSslEndDate != null) {
-                            pinnedDomainSslEndDateString = pinnedDomainSslEndDate.toString();
-                        }
-
-                        // Check to see if the pinned SSL certificate matches the current website certificate.
-                        if (!currentWebsiteIssuedToCName.equals(pinnedDomainSslIssuedToCNameString) || !currentWebsiteIssuedToOName.equals(pinnedDomainSslIssuedToONameString) ||
-                                !currentWebsiteIssuedToUName.equals(pinnedDomainSslIssuedToUNameString) || !currentWebsiteIssuedByCName.equals(pinnedDomainSslIssuedByCNameString) ||
-                                !currentWebsiteIssuedByOName.equals(pinnedDomainSslIssuedByONameString) || !currentWebsiteIssuedByUName.equals(pinnedDomainSslIssuedByUNameString) ||
-                                !currentWebsiteSslStartDateString.equals(pinnedDomainSslStartDateString) || !currentWebsiteSslEndDateString.equals(pinnedDomainSslEndDateString)) {
-                                // The pinned SSL certificate doesn't match the current domain certificate.
-                            //Display the pinned SSL certificate mismatch `AlertDialog`.
-                            AppCompatDialogFragment pinnedSslCertificateMismatchDialogFragment = new PinnedSslCertificateMismatchDialog();
-                            pinnedSslCertificateMismatchDialogFragment.show(getSupportFragmentManager(), getString(R.string.ssl_certificate_mismatch));
-                        }
-                    }
+                // Flush any cookies to persistent storage.  `CookieManager` has become very lazy about flushing cookies in recent versions.
+                if (firstPartyCookiesEnabled && Build.VERSION.SDK_INT >= 21) {
+                    cookieManager.flush();
                 }
-            }
 
-            // Handle SSL Certificate errors.
-            @Override
-            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
-                // Get the current website SSL certificate.
-                SslCertificate currentWebsiteSslCertificate = error.getCertificate();
-
-                // Extract the individual pieces of information from the current website SSL certificate.
-                String currentWebsiteIssuedToCName = currentWebsiteSslCertificate.getIssuedTo().getCName();
-                String currentWebsiteIssuedToOName = currentWebsiteSslCertificate.getIssuedTo().getOName();
-                String currentWebsiteIssuedToUName = currentWebsiteSslCertificate.getIssuedTo().getUName();
-                String currentWebsiteIssuedByCName = currentWebsiteSslCertificate.getIssuedBy().getCName();
-                String currentWebsiteIssuedByOName = currentWebsiteSslCertificate.getIssuedBy().getOName();
-                String currentWebsiteIssuedByUName = currentWebsiteSslCertificate.getIssuedBy().getUName();
-                Date currentWebsiteSslStartDate = currentWebsiteSslCertificate.getValidNotBeforeDate();
-                Date currentWebsiteSslEndDate = currentWebsiteSslCertificate.getValidNotAfterDate();
-
-                // Proceed to the website if the current SSL website certificate matches the pinned domain certificate.
-                if (pinnedDomainSslCertificate &&
-                        currentWebsiteIssuedToCName.equals(pinnedDomainSslIssuedToCNameString) && currentWebsiteIssuedToOName.equals(pinnedDomainSslIssuedToONameString) &&
-                        currentWebsiteIssuedToUName.equals(pinnedDomainSslIssuedToUNameString) && currentWebsiteIssuedByCName.equals(pinnedDomainSslIssuedByCNameString) &&
-                        currentWebsiteIssuedByOName.equals(pinnedDomainSslIssuedByONameString) && currentWebsiteIssuedByUName.equals(pinnedDomainSslIssuedByUNameString) &&
-                        currentWebsiteSslStartDate.equals(pinnedDomainSslStartDate) && currentWebsiteSslEndDate.equals(pinnedDomainSslEndDate)) {
-                        // An SSL certificate is pinned and matches the current domain certificate.
-                    // Proceed to the website without displaying an error.
-                    handler.proceed();
-                } else {  // Either there isn't a pinned SSL certificate or it doesn't match the current website certificate.
-                    // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
-                    sslErrorHandler = handler;
-
-                    // Display the SSL error `AlertDialog`.
-                    AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateErrorDialog.displayDialog(error);
-                    sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getString(R.string.ssl_certificate_error));
-                }
-            }
-        });
-
-        // Get a handle for the progress bar.
-        final ProgressBar progressBar = findViewById(R.id.progress_bar);
-
-        mainWebView.setWebChromeClient(new WebChromeClient() {
-            // Update the progress bar when a page is loading.
-            @Override
-            public void onProgressChanged(WebView view, int progress) {
-                // Inject the night mode CSS if night mode is enabled.
-                if (nightMode) {
-                    // `background-color: #212121` sets the background to be dark gray.  `color: #BDBDBD` sets the text color to be light gray.  `box-shadow: none` removes a lower underline on links
-                    // used by WordPress.  `text-decoration: none` removes all text underlines.  `text-shadow: none` removes text shadows, which usually have a hard coded color.
-                    // `border: none` removes all borders, which can also be used to underline text.
-                    // `a {color: #1565C0}` sets links to be a dark blue.  `!important` takes precedent over any existing sub-settings.
-                    mainWebView.evaluateJavascript("(function() {var parent = document.getElementsByTagName('head').item(0); var style = document.createElement('style'); style.type = 'text/css'; " +
-                            "style.innerHTML = '* {background-color: #212121 !important; color: #BDBDBD !important; box-shadow: none !important; text-decoration: none !important;" +
-                            "text-shadow: none !important; border: none !important;} a {color: #1565C0 !important;}'; parent.appendChild(style)})()", value -> {
-                                // Initialize a `Handler` to display `mainWebView`.
-                                Handler displayWebViewHandler = new Handler();
-
-                                // Setup a `Runnable` to display `mainWebView` after a delay to allow the CSS to be applied.
-                                Runnable displayWebViewRunnable = () -> {
-                                    // Only display `mainWebView` if the progress bar is one.  This prevents the display of the `WebView` while it is still loading.
-                                    if (progressBar.getVisibility() == View.GONE) {
-                                        mainWebView.setVisibility(View.VISIBLE);
-                                    }
-                                };
-
-                                // Use `displayWebViewHandler` to delay the displaying of `mainWebView` for 500 milliseconds.
-                                displayWebViewHandler.postDelayed(displayWebViewRunnable, 500);
-                            });
-                }
-
-                // Update the progress bar.
-                progressBar.setProgress(progress);
-
-                // Set the visibility of the progress bar.
-                if (progress < 100) {
-                    // Show the progress bar.
-                    progressBar.setVisibility(View.VISIBLE);
-                } else {
-                    // Hide the progress bar.
-                    progressBar.setVisibility(View.GONE);
-
-                    // Display `mainWebView` if night mode is disabled.
-                    // Because of a race condition between `applyDomainSettings` and `onPageStarted`, when night mode is set by domain settings the `WebView` may be hidden even if night mode is not
-                    // currently enabled.
-                    if (!nightMode) {
-                        mainWebView.setVisibility(View.VISIBLE);
-                    }
-
-                    //Stop the `SwipeToRefresh` indicator if it is running
-                    swipeRefreshLayout.setRefreshing(false);
-                }
-            }
-
-            // Set the favorite icon when it changes.
-            @Override
-            public void onReceivedIcon(WebView view, Bitmap icon) {
-                // Only update the favorite icon if the website has finished loading.
-                if (progressBar.getVisibility() == View.GONE) {
-                    // Save a copy of the favorite icon.
-                    favoriteIconBitmap = icon;
-
-                    // Place the favorite icon in the appBar.
-                    favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
-                }
-            }
-
-            // Save a copy of the title when it changes.
-            @Override
-            public void onReceivedTitle(WebView view, String title) {
-                // Save a copy of the title.
-                webViewTitle = title;
-            }
-
-            // Enter full screen video
-            @Override
-            public void onShowCustomView(View view, CustomViewCallback callback) {
-                // Pause the ad if this is the free flavor.
-                if (BuildConfig.FLAVOR.contentEquals("free")) {
-                    BannerAd.pauseAd(adView);
-                }
-
-                // Remove the translucent overlays.
-                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-
-                // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
-                drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
-
-                /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
-                 * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
-                 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
-                 */
-                rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-
-                // Set `rootCoordinatorLayout` to fill the entire screen.
-                rootCoordinatorLayout.setFitsSystemWindows(false);
-
-                // Add `view` to `fullScreenVideoFrameLayout` and display it on the screen.
-                fullScreenVideoFrameLayout.addView(view);
-                fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
-            }
-
-            // Exit full screen video
-            public void onHideCustomView() {
-                // Hide `fullScreenVideoFrameLayout`.
-                fullScreenVideoFrameLayout.removeAllViews();
-                fullScreenVideoFrameLayout.setVisibility(View.GONE);
+                // Reset `urlIsLoading`, which is used to prevent reloads on redirect if the user agent changes.
+                urlIsLoading = false;
 
-                // Add the translucent status flag.  This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
-                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+                // Clear the cache and history if Incognito Mode is enabled.
+                if (incognitoModeEnabled) {
+                    // Clear the cache.  `true` includes disk files.
+                    mainWebView.clearCache(true);
 
-                // Set `rootCoordinatorLayout` to fit inside the status and navigation bars.  This also clears the `SYSTEM_UI` flags.
-                rootCoordinatorLayout.setFitsSystemWindows(true);
+                    // Clear the back/forward history.
+                    mainWebView.clearHistory();
 
-                // Show the ad if this is the free flavor.
-                if (BuildConfig.FLAVOR.contentEquals("free")) {
-                    // Reload the ad.  Because the screen may have rotated, we need to use `reloadAfterRotate`.
-                    BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
+                    // Manually delete cache folders.
+                    try {
+                        // Delete the main `cache` folder.
+                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/cache");
 
-                    // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
-                    adView = findViewById(R.id.adview);
+                        // Delete the `app_webview` folder, which contains an additional `WebView` cache.  See `https://code.google.com/p/android/issues/detail?id=233826&thanks=233826&ts=1486670530`.
+                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview");
+                    } catch (IOException e) {
+                        // Do nothing if an error is thrown.
+                    }
                 }
-            }
-        });
-
-        // Register `mainWebView` for a context menu.  This is used to see link targets and download images.
-        registerForContextMenu(mainWebView);
 
-        // Allow the downloading of files.
-        mainWebView.setDownloadListener((String url, String userAgent, String contentDisposition, String mimetype, long contentLength) -> {
-            // Show the `DownloadFileDialog` `AlertDialog` and name this instance `@string/download`.
-            AppCompatDialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(url, contentDisposition, contentLength);
-            downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
-        });
+                // Update `urlTextBox` and apply domain settings if not waiting on Orbot.
+                if (!waitingForOrbot) {
+                    // Check to see if `WebView` has set `url` to be `about:blank`.
+                    if (url.equals("about:blank")) {  // `WebView` is blank, so `formattedUrlString` should be `""` and `urlTextBox` should display a hint.
+                        // Set `formattedUrlString` to `""`.
+                        formattedUrlString = "";
 
-        // Allow pinch to zoom.
-        mainWebView.getSettings().setBuiltInZoomControls(true);
+                        urlTextBox.setText(formattedUrlString);
 
-        // Hide zoom controls.
-        mainWebView.getSettings().setDisplayZoomControls(false);
+                        // Request focus for `urlTextBox`.
+                        urlTextBox.requestFocus();
 
-        // Set `mainWebView` to use a wide viewport.  Otherwise, some web pages will be scrunched and some content will render outside the screen.
-        mainWebView.getSettings().setUseWideViewPort(true);
+                        // Display the keyboard.
+                        inputMethodManager.showSoftInput(urlTextBox, 0);
 
-        // Set `mainWebView` to load in overview mode (zoomed out to the maximum width).
-        mainWebView.getSettings().setLoadWithOverviewMode(true);
+                        // Apply the domain settings.  This clears any settings from the previous domain.
+                        applyDomainSettings(formattedUrlString, true);
+                    } else {  // `WebView` has loaded a webpage.
+                        // Set `formattedUrlString`.
+                        formattedUrlString = url;
 
-        // Explicitly disable geolocation.
-        mainWebView.getSettings().setGeolocationEnabled(false);
+                        // Only update `urlTextBox` if the user is not typing in it.
+                        if (!urlTextBox.hasFocus()) {
+                            // Display the formatted URL text.
+                            urlTextBox.setText(formattedUrlString);
 
-        // Initialize cookieManager.
-        cookieManager = CookieManager.getInstance();
+                            // Apply text highlighting to `urlTextBox`.
+                            highlightUrlText();
+                        }
+                    }
 
-        // Replace the header that `WebView` creates for `X-Requested-With` with a null value.  The default value is the application ID (com.stoutner.privacybrowser.standard).
-        customHeaders.put("X-Requested-With", "");
+                    // Store the SSL certificate so it can be accessed from `ViewSslCertificateDialog` and `PinnedSslCertificateMismatchDialog`.
+                    sslCertificate = mainWebView.getCertificate();
 
-        // Initialize the default preference values the first time the program is run.  `this` is the context.  `false` keeps this command from resetting any current preferences back to default.
-        PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
+                    // Check the current website SSL certificate against the pinned SSL certificate if there is a pinned SSL certificate the user has not chosen to ignore it for this session.
+                    if (pinnedDomainSslCertificate && !ignorePinnedSslCertificate) {
+                        // Initialize the current SSL certificate variables.
+                        String currentWebsiteIssuedToCName = "";
+                        String currentWebsiteIssuedToOName = "";
+                        String currentWebsiteIssuedToUName = "";
+                        String currentWebsiteIssuedByCName = "";
+                        String currentWebsiteIssuedByOName = "";
+                        String currentWebsiteIssuedByUName = "";
+                        Date currentWebsiteSslStartDate = null;
+                        Date currentWebsiteSslEndDate = null;
 
-        // Get the intent that started the app.
-        final Intent launchingIntent = getIntent();
 
-        // Extract the launching intent data as `launchingIntentUriData`.
-        final Uri launchingIntentUriData = launchingIntent.getData();
+                        // Extract the individual pieces of information from the current website SSL certificate if it is not null.
+                        if (sslCertificate != null) {
+                            currentWebsiteIssuedToCName = sslCertificate.getIssuedTo().getCName();
+                            currentWebsiteIssuedToOName = sslCertificate.getIssuedTo().getOName();
+                            currentWebsiteIssuedToUName = sslCertificate.getIssuedTo().getUName();
+                            currentWebsiteIssuedByCName = sslCertificate.getIssuedBy().getCName();
+                            currentWebsiteIssuedByOName = sslCertificate.getIssuedBy().getOName();
+                            currentWebsiteIssuedByUName = sslCertificate.getIssuedBy().getUName();
+                            currentWebsiteSslStartDate = sslCertificate.getValidNotBeforeDate();
+                            currentWebsiteSslEndDate = sslCertificate.getValidNotAfterDate();
+                        }
 
-        // Convert the launching intent URI data (if it exists) to a string and store it in `formattedUrlString`.
-        if (launchingIntentUriData != null) {
-            formattedUrlString = launchingIntentUriData.toString();
-        }
+                        // Initialize `String` variables to store the SSL certificate dates.  `Strings` are needed to compare the values below, which doesn't work with `Dates` if they are `null`.
+                        String currentWebsiteSslStartDateString = "";
+                        String currentWebsiteSslEndDateString = "";
+                        String pinnedDomainSslStartDateString = "";
+                        String pinnedDomainSslEndDateString = "";
 
-        // Get a handle for the `Runtime`.
-        privacyBrowserRuntime = Runtime.getRuntime();
+                        // Convert the `Dates` to `Strings` if they are not `null`.
+                        if (currentWebsiteSslStartDate != null) {
+                            currentWebsiteSslStartDateString = currentWebsiteSslStartDate.toString();
+                        }
 
-        // Store the application's private data directory.
-        privateDataDirectoryString = getApplicationInfo().dataDir;
-        // `dataDir` will vary, but will be something like `/data/user/0/com.stoutner.privacybrowser.standard`, which links to `/data/data/com.stoutner.privacybrowser.standard`.
+                        if (currentWebsiteSslEndDate != null) {
+                            currentWebsiteSslEndDateString = currentWebsiteSslEndDate.toString();
+                        }
 
-        // Initialize `inFullScreenBrowsingMode`, which is always false at this point because Privacy Browser never starts in full screen browsing mode.
-        inFullScreenBrowsingMode = false;
+                        if (pinnedDomainSslStartDate != null) {
+                            pinnedDomainSslStartDateString = pinnedDomainSslStartDate.toString();
+                        }
 
-        // Initialize AdView for the free flavor.
-        adView = findViewById(R.id.adview);
+                        if (pinnedDomainSslEndDate != null) {
+                            pinnedDomainSslEndDateString = pinnedDomainSslEndDate.toString();
+                        }
 
-        // Initialize the privacy settings variables.
-        javaScriptEnabled = false;
-        firstPartyCookiesEnabled = false;
-        thirdPartyCookiesEnabled = false;
-        domStorageEnabled = false;
-        saveFormDataEnabled = false;
-        nightMode = false;
+                        // Check to see if the pinned SSL certificate matches the current website certificate.
+                        if (!currentWebsiteIssuedToCName.equals(pinnedDomainSslIssuedToCNameString) || !currentWebsiteIssuedToOName.equals(pinnedDomainSslIssuedToONameString) ||
+                                !currentWebsiteIssuedToUName.equals(pinnedDomainSslIssuedToUNameString) || !currentWebsiteIssuedByCName.equals(pinnedDomainSslIssuedByCNameString) ||
+                                !currentWebsiteIssuedByOName.equals(pinnedDomainSslIssuedByONameString) || !currentWebsiteIssuedByUName.equals(pinnedDomainSslIssuedByUNameString) ||
+                                !currentWebsiteSslStartDateString.equals(pinnedDomainSslStartDateString) || !currentWebsiteSslEndDateString.equals(pinnedDomainSslEndDateString)) {
+                            // The pinned SSL certificate doesn't match the current domain certificate.
+                            //Display the pinned SSL certificate mismatch `AlertDialog`.
+                            AppCompatDialogFragment pinnedSslCertificateMismatchDialogFragment = new PinnedSslCertificateMismatchDialog();
+                            pinnedSslCertificateMismatchDialogFragment.show(getSupportFragmentManager(), getString(R.string.ssl_certificate_mismatch));
+                        }
+                    }
+                }
+            }
 
-        // Initialize `webViewTitle`.
-        webViewTitle = getString(R.string.no_title);
+            // Handle SSL Certificate errors.
+            @Override
+            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
+                // Get the current website SSL certificate.
+                SslCertificate currentWebsiteSslCertificate = error.getCertificate();
 
-        // Initialize `favoriteIconBitmap`.  `ContextCompat` must be used until API >= 21.
-        Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
-        BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
-        assert favoriteIconBitmapDrawable != null;
-        favoriteIconDefaultBitmap = favoriteIconBitmapDrawable.getBitmap();
+                // Extract the individual pieces of information from the current website SSL certificate.
+                String currentWebsiteIssuedToCName = currentWebsiteSslCertificate.getIssuedTo().getCName();
+                String currentWebsiteIssuedToOName = currentWebsiteSslCertificate.getIssuedTo().getOName();
+                String currentWebsiteIssuedToUName = currentWebsiteSslCertificate.getIssuedTo().getUName();
+                String currentWebsiteIssuedByCName = currentWebsiteSslCertificate.getIssuedBy().getCName();
+                String currentWebsiteIssuedByOName = currentWebsiteSslCertificate.getIssuedBy().getOName();
+                String currentWebsiteIssuedByUName = currentWebsiteSslCertificate.getIssuedBy().getUName();
+                Date currentWebsiteSslStartDate = currentWebsiteSslCertificate.getValidNotBeforeDate();
+                Date currentWebsiteSslEndDate = currentWebsiteSslCertificate.getValidNotAfterDate();
 
-        // If the favorite icon is null, load the default.
-        if (favoriteIconBitmap == null) {
-            favoriteIconBitmap = favoriteIconDefaultBitmap;
-        }
+                // Proceed to the website if the current SSL website certificate matches the pinned domain certificate.
+                if (pinnedDomainSslCertificate &&
+                        currentWebsiteIssuedToCName.equals(pinnedDomainSslIssuedToCNameString) && currentWebsiteIssuedToOName.equals(pinnedDomainSslIssuedToONameString) &&
+                        currentWebsiteIssuedToUName.equals(pinnedDomainSslIssuedToUNameString) && currentWebsiteIssuedByCName.equals(pinnedDomainSslIssuedByCNameString) &&
+                        currentWebsiteIssuedByOName.equals(pinnedDomainSslIssuedByONameString) && currentWebsiteIssuedByUName.equals(pinnedDomainSslIssuedByUNameString) &&
+                        currentWebsiteSslStartDate.equals(pinnedDomainSslStartDate) && currentWebsiteSslEndDate.equals(pinnedDomainSslEndDate)) {
+                    // An SSL certificate is pinned and matches the current domain certificate.
+                    // Proceed to the website without displaying an error.
+                    handler.proceed();
+                } else {  // Either there isn't a pinned SSL certificate or it doesn't match the current website certificate.
+                    // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
+                    sslErrorHandler = handler;
 
-        // Apply the app settings from the shared preferences.
-        applyAppSettings();
+                    // Display the SSL error `AlertDialog`.
+                    AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateErrorDialog.displayDialog(error);
+                    sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getString(R.string.ssl_certificate_error));
+                }
+            }
+        });
 
-        // Load `formattedUrlString` if we are not waiting for Orbot to connect.
+        // Load the website if not waiting for Orbot to connect.
         if (!waitingForOrbot) {
             loadUrl(formattedUrlString);
         }
@@ -2175,22 +1377,28 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
         setIntent(intent);
 
+        // Check to see if the intent contains a new URL.
         if (intent.getData() != null) {
             // Get the intent data and convert it to a string.
             final Uri intentUriData = intent.getData();
             formattedUrlString = intentUriData.toString();
-        }
 
-        // Close the navigation drawer if it is open.
-        if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
-            drawerLayout.closeDrawer(GravityCompat.START);
-        }
+            // Load the website.
+            loadUrl(formattedUrlString);
 
-        // Load the website.
-        loadUrl(formattedUrlString);
+            // Close the navigation drawer if it is open.
+            if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
+                drawerLayout.closeDrawer(GravityCompat.START);
+            }
 
-        // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
-        mainWebView.requestFocus();
+            // Close the bookmarks drawer if it is open.
+            if (drawerLayout.isDrawerVisible(GravityCompat.END)) {
+                drawerLayout.closeDrawer(GravityCompat.END);
+            }
+
+            // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
+            mainWebView.requestFocus();
+        }
     }
 
     @Override
@@ -2198,31 +1406,31 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         // Run the default commands.
         super.onRestart();
 
-        // Apply the app settings, which may have been changed in `SettingsActivity`.
-        applyAppSettings();
-
-        // Apply the domain settings if returning from the Domains Activity.
-        if (reapplyDomainSettingsOnRestart) {
-            // Reset `reapplyDomainSettingsOnRestart`.
-            reapplyDomainSettingsOnRestart = false;
+        // Apply the app settings if returning from the Settings activity..
+        if (reapplyAppSettingsOnRestart) {
+            // Apply the app settings.
+            applyAppSettings();
 
-            // Reapply the domain settings.
-            applyDomainSettings(formattedUrlString);
-        }
+            // Reload the webpage if displaying of images has been disabled in the Settings activity.
+            if (reloadOnRestart) {
+                // Reload `mainWebView`.
+                mainWebView.reload();
 
-        // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.
-        updatePrivacyIcons(true);
+                // Reset `reloadOnRestartBoolean`.
+                reloadOnRestart = false;
+            }
 
-        // Set the display webpage images mode.
-        setDisplayWebpageImages();
+            // Reset the return from settings flag.
+            reapplyAppSettingsOnRestart = false;
+        }
 
-        // Reload the webpage if displaying of images has been disabled in `SettingsFragment`.
-        if (reloadOnRestart) {
-            // Reload `mainWebView`.
-            mainWebView.reload();
+        // Apply the domain settings if returning from the Domains activity.
+        if (reapplyDomainSettingsOnRestart) {
+            // Reapply the domain settings.
+            applyDomainSettings(formattedUrlString, false);
 
-            // Reset `reloadOnRestartBoolean`.
-            reloadOnRestart = false;
+            // Reset `reapplyDomainSettingsOnRestart`.
+            reapplyDomainSettingsOnRestart = false;
         }
 
         // Load the URL on restart to apply changes to night mode.
@@ -2234,7 +1442,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             loadUrlOnRestart = false;
         }
 
-        //
+        // Update the bookmarks drawer if returning from the Bookmarks activity.
         if (restartFromBookmarksActivity) {
             // Close the bookmarks drawer.
             drawerLayout.closeDrawer(GravityCompat.END);
@@ -2245,6 +1453,9 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             // Reset `restartFromBookmarksActivity`.
             restartFromBookmarksActivity = false;
         }
+
+        // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.  This can be important if the screen was rotated.
+        updatePrivacyIcons(true);
     }
 
     // `onResume()` runs after `onStart()`, which runs after `onCreate()` and `onRestart()`.
@@ -2858,7 +2069,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
                 break;
 
             case R.id.domains:
-                // Reapply the domain settings on returning to `MainWebViewActivity`.
+                // Set the flag to reapply the domain settings on restart when returning from Domain Settings.
                 reapplyDomainSettingsOnRestart = true;
                 currentDomainName = "";
 
@@ -2868,7 +2079,10 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
                 break;
 
             case R.id.settings:
-                // Reapply the domain settings on returning to `MainWebViewActivity`.
+                // Set the flag to reapply app settings on restart when returning from Settings.
+                reapplyAppSettingsOnRestart = true;
+
+                // Set the flag to reapply the domain settings on restart when returning from Settings.
                 reapplyDomainSettingsOnRestart = true;
                 currentDomainName = "";
 
@@ -3135,9 +2349,31 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
 
                 // Add a `Download Image` entry.
                 menu.add(R.string.download_image).setOnMenuItemClickListener((MenuItem item) -> {
-                    // Show the `DownloadImageDialog` `AlertDialog` and name this instance `@string/download`.
-                    AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
-                    downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+                    // Check to see if the WRITE_EXTERNAL_STORAGE permission has already been granted.
+                    if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) {
+                        // The WRITE_EXTERNAL_STORAGE permission needs to be requested.
+
+                        // Store the image URL for use by `onRequestPermissionResult()`.
+                        downloadImageUrl = imageUrl;
+
+                        // Show a dialog if the user has previously denied the permission.
+                        if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {  // Show a dialog explaining the request first.
+                            // Get a handle for the download location permission alert dialog and set the download type to DOWNLOAD_IMAGE.
+                            DialogFragment downloadLocationPermissionDialogFragment = DownloadLocationPermissionDialog.downloadType(DownloadLocationPermissionDialog.DOWNLOAD_IMAGE);
+
+                            // Show the download location permission alert dialog.  The permission will be requested when the dialog is closed.
+                            downloadLocationPermissionDialogFragment.show(getFragmentManager(), getString(R.string.download_location));
+                        } else {  // Show the permission request directly.
+                            // Request the permission.  The download dialog will be launched by `onRequestPermissionResult().
+                            ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_IMAGE_REQUEST_CODE);
+                        }
+                    } else {  // The WRITE_EXTERNAL_STORAGE permission has already been granted.
+                        // Get a handle for the download image alert dialog.
+                        AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
+
+                        // Show the download image alert dialog.
+                        downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+                    }
                     return false;
                 });
 
@@ -3172,9 +2408,31 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
 
                 // Add a `Download Image` entry.
                 menu.add(R.string.download_image).setOnMenuItemClickListener((MenuItem item) -> {
-                    // Show the `DownloadImageDialog` `AlertDialog` and name this instance `@string/download`.
-                    AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
-                    downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+                    // Check to see if the WRITE_EXTERNAL_STORAGE permission has already been granted.
+                    if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) {
+                        // The WRITE_EXTERNAL_STORAGE permission needs to be requested.
+
+                        // Store the image URL for use by `onRequestPermissionResult()`.
+                        downloadImageUrl = imageUrl;
+
+                        // Show a dialog if the user has previously denied the permission.
+                        if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {  // Show a dialog explaining the request first.
+                            // Get a handle for the download location permission alert dialog and set the download type to DOWNLOAD_IMAGE.
+                            DialogFragment downloadLocationPermissionDialogFragment = DownloadLocationPermissionDialog.downloadType(DownloadLocationPermissionDialog.DOWNLOAD_IMAGE);
+
+                            // Show the download location permission alert dialog.  The permission will be requested when the dialog is closed.
+                            downloadLocationPermissionDialogFragment.show(getFragmentManager(), getString(R.string.download_location));
+                        } else {  // Show the permission request directly.
+                            // Request the permission.  The download dialog will be launched by `onRequestPermissionResult().
+                            ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_IMAGE_REQUEST_CODE);
+                        }
+                    } else {  // The WRITE_EXTERNAL_STORAGE permission has already been granted.
+                        // Get a handle for the download image alert dialog.
+                        AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
+
+                        // Show the download image alert dialog.
+                        downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+                    }
                     return false;
                 });
 
@@ -3323,6 +2581,58 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         ShortcutManagerCompat.requestPinShortcut(this, shortcutInfoBuilder.build(), null);
     }
 
+    @Override
+    public void onCloseDownloadLocationPermissionDialog(int downloadType) {
+        switch (downloadType) {
+            case DownloadLocationPermissionDialog.DOWNLOAD_FILE:
+                // Request the WRITE_EXTERNAL_STORAGE permission with a file request code.
+                ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_FILE_REQUEST_CODE);
+                break;
+
+            case DownloadLocationPermissionDialog.DOWNLOAD_IMAGE:
+                // Request the WRITE_EXTERNAL_STORAGE permission with an image request code.
+                ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_IMAGE_REQUEST_CODE);
+                break;
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
+        switch (requestCode) {
+            case DOWNLOAD_FILE_REQUEST_CODE:
+                // Show the download file alert dialog.  When the dialog closes, the correct command will be used based on the permission status.
+                AppCompatDialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(downloadUrl, downloadContentDisposition, downloadContentLength);
+
+                // On API 23, displaying the fragment must be delayed or the app will crash.
+                if (Build.VERSION.SDK_INT == 23) {
+                    new Handler().postDelayed(() -> downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download)), 500);
+                } else {
+                    downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+                }
+
+                // Reset the download variables.
+                downloadUrl = "";
+                downloadContentDisposition = "";
+                downloadContentLength = 0;
+                break;
+
+            case DOWNLOAD_IMAGE_REQUEST_CODE:
+                // Show the download image alert dialog.  When the dialog closes, the correct command will be used based on the permission status.
+                AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(downloadImageUrl);
+
+                // On API 23, displaying the fragment must be delayed or the app will crash.
+                if (Build.VERSION.SDK_INT == 23) {
+                    new Handler().postDelayed(() -> downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download)), 500);
+                } else {
+                    downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+                }
+
+                // Reset the image URL variable.
+                downloadImageUrl = "";
+                break;
+        }
+    }
+
     @Override
     public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
         // Download the image if it has an HTTP or HTTPS URI.
@@ -3343,15 +2653,17 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
                 downloadRequest.addRequestHeader("Cookie", cookies);
             }
 
-            // Get the file name from `dialogFragment`.
+            // Get the file name from the dialog fragment.
             EditText downloadImageNameEditText = dialogFragment.getDialog().findViewById(R.id.download_image_name);
             String imageName = downloadImageNameEditText.getText().toString();
 
-            // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
-            if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
-                downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
-            } else { // Only set the title using `imageName`.
-                downloadRequest.setTitle(imageName);
+            // Specify the download location.
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {  // External write permission granted.
+                // Download to the public download directory.
+                downloadRequest.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, imageName);
+            } else {  // External write permission denied.
+                // Download to the app's external download directory.
+                downloadRequest.setDestinationInExternalFilesDir(this, Environment.DIRECTORY_DOWNLOADS, imageName);
             }
 
             // Allow `MediaScanner` to index the download if it is a media file.
@@ -3377,7 +2689,6 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
     public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
         // Download the file if it has an HTTP or HTTPS URI.
         if (downloadUrl.startsWith("http")) {
-
             // Get a handle for the system `DOWNLOAD_SERVICE`.
             DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 
@@ -3394,15 +2705,17 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
                 downloadRequest.addRequestHeader("Cookie", cookies);
             }
 
-            // Get the file name from `dialogFragment`.
+            // Get the file name from the dialog fragment.
             EditText downloadFileNameEditText = dialogFragment.getDialog().findViewById(R.id.download_file_name);
             String fileName = downloadFileNameEditText.getText().toString();
 
-            // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
-            if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download location to `/sdcard/Android/data/com.stoutner.privacybrowser.standard/files` named `fileName`.
-                downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
-            } else { // Only set the title using `fileName`.
-                downloadRequest.setTitle(fileName);
+            // Specify the download location.
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {  // External write permission granted.
+                // Download to the public download directory.
+                downloadRequest.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
+            } else {  // External write permission denied.
+                // Download to the app's external download directory.
+                downloadRequest.setDestinationInExternalFilesDir(this, Environment.DIRECTORY_DOWNLOADS, fileName);
             }
 
             // Allow `MediaScanner` to index the download if it is a media file.
@@ -3656,13 +2969,16 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             formattedUrlString = searchURL + encodedUrlString;
         }
 
+        // Clear the focus from the URL text box.  Otherwise, proximate typing in the box will retain the colorized formatting instead of being reset during refocus.
+        urlTextBox.clearFocus();
+
         loadUrl(formattedUrlString);
     }
 
 
     private void loadUrl(String url) {
         // Apply any custom domain settings.
-        applyDomainSettings(url);
+        applyDomainSettings(url, true);
 
         // Load the URL.
         mainWebView.loadUrl(url, customHeaders);
@@ -3709,7 +3025,10 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         String torSearchCustomURLString = sharedPreferences.getString("tor_search_custom_url", "");
         String searchString = sharedPreferences.getString("search", "https://duckduckgo.com/html/?q=");
         String searchCustomURLString = sharedPreferences.getString("search_custom_url", "");
-        adBlockerEnabled = sharedPreferences.getBoolean("block_ads", true);
+        easyListEnabled = sharedPreferences.getBoolean("easylist", true);
+        easyPrivacyEnabled = sharedPreferences.getBoolean("easyprivacy", true);
+        fanboyAnnoyanceListEnabled = sharedPreferences.getBoolean("fanboy_annoyance_list", true);
+        fanboySocialBlockingListEnabled = sharedPreferences.getBoolean("fanboy_social_blocking_list", true);
         incognitoModeEnabled = sharedPreferences.getBoolean("incognito_mode", false);
         boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", false);
         boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
@@ -3808,7 +3127,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
 
                 /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
                  * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
-                 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
+                 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically re-hides them after they are shown.
                  */
                 rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
             } else {  // Hide everything except the status and navigation bars.
@@ -3855,9 +3174,10 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
         }
     }
 
-    // We have to use the deprecated `.getDrawable()` until the minimum API >= 21.
+    //
+    // The deprecated `.getDrawable()` must be used until the minimum API >= 21.
     @SuppressWarnings("deprecation")
-    private void applyDomainSettings(String url) {
+    private void applyDomainSettings(String url, boolean resetFavoriteIcon) {
         // Reset `navigatingHistory`.
         navigatingHistory = false;
 
@@ -3879,7 +3199,7 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             loadingNewDomainName = !hostName.equals(currentDomainName);
         }
 
-        // Only apply the domain settings if we are loading a new domain.  This allows the user to set temporary settings for JavaScript, cookies, DOM storage, etc.
+        // Only apply the domain settings if a new domain is being loaded.  This allows the user to set temporary settings for JavaScript, cookies, DOM storage, etc.
         if (loadingNewDomainName) {
             // Set the new `hostname` as the `currentDomainName`.
             currentDomainName = hostName;
@@ -3887,9 +3207,11 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             // Reset `ignorePinnedSslCertificate`.
             ignorePinnedSslCertificate = false;
 
-            // Reset `favoriteIconBitmap` and display it in the `appbar`.
-            favoriteIconBitmap = favoriteIconDefaultBitmap;
-            favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(favoriteIconBitmap, 64, 64, true));
+            // Reset the favorite icon if specified.
+            if (resetFavoriteIcon) {
+                favoriteIconBitmap = favoriteIconDefaultBitmap;
+                favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(favoriteIconBitmap, 64, 64, true));
+            }
 
             // Initialize the database handler.  `this` specifies the context.  The two `nulls` do not specify the database name or a `CursorFactory`.
             // The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
@@ -4295,4 +3617,4 @@ public class MainWebViewActivity extends AppCompatActivity implements AddDomainD
             bookmarksTitleTextView.setText(currentBookmarksFolder);
         }
     }
-}
+}
\ No newline at end of file