move browser to webbrowser/

39 files changed, 9639 insertions, 0 deletions

diff --git a/webbrowser/components/preferences/advanced.js b/webbrowser/components/preferences/advanced.js
new file mode 100644
index 0000000..aab58b3
--- /dev/null
+++ b/webbrowser/components/preferences/advanced.js
@@ -0,0 +1,755 @@
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// Load DownloadUtils module for convertByteUnits
+Components.utils.import("resource://gre/modules/DownloadUtils.jsm");
+Components.utils.import("resource://gre/modules/ctypes.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/LoadContextInfo.jsm");
+Components.utils.import("resource://gre/modules/BrowserUtils.jsm");
+
+var gAdvancedPane = {
+  _inited: false,
+
+  /**
+   * Brings the appropriate tab to the front and initializes various bits of UI.
+   */
+  init: function ()
+  {
+    this._inited = true;
+    var advancedPrefs = document.getElementById("advancedPrefs");
+
+    var extraArgs = window.arguments[1];
+    if (extraArgs && extraArgs["advancedTab"]){
+      advancedPrefs.selectedTab = document.getElementById(extraArgs["advancedTab"]);
+    } else {
+      var preference = document.getElementById("browser.preferences.advanced.selectedTabIndex");
+      if (preference.value !== null)
+        advancedPrefs.selectedIndex = preference.value;
+    }
+
+#ifdef HAVE_SHELL_SERVICE
+    this.updateSetDefaultBrowser();
+#ifdef XP_WIN
+    // In Windows 8 we launch the control panel since it's the only
+    // way to get all file type association prefs. So we don't know
+    // when the user will select the default.  We refresh here periodically
+    // in case the default changes.  On other Windows OS's defaults can also
+    // be set while the prefs are open.
+    window.setInterval(this.updateSetDefaultBrowser, 1000);
+#endif
+#endif
+
+#ifdef MOZ_UPDATER
+    this.updateReadPrefs();
+#endif
+    this.updateOfflineAppsPermissions();
+    this.updateOfflineApps();
+
+    this.updateActualCacheSize();
+    this.updateActualAppCacheSize();
+
+    // Notify observers that the UI is now ready
+    Services.obs.notifyObservers(window, "advanced-pane-loaded", null);
+  },
+
+  /**
+   * Stores the identity of the current tab in preferences so that the selected
+   * tab can be persisted between openings of the preferences window.
+   */
+  tabSelectionChanged: function ()
+  {
+    if (!this._inited)
+      return;
+    var advancedPrefs = document.getElementById("advancedPrefs");
+    var preference = document.getElementById("browser.preferences.advanced.selectedTabIndex");
+    preference.valueFromPreferences = advancedPrefs.selectedIndex;
+  },
+
+  // GENERAL TAB
+
+  /*
+   * Preferences:
+   *
+   * accessibility.browsewithcaret
+   * - true enables keyboard navigation and selection within web pages using a
+   *   visible caret, false uses normal keyboard navigation with no caret
+   * accessibility.typeaheadfind
+   * - when set to true, typing outside text areas and input boxes will
+   *   automatically start searching for what's typed within the current
+   *   document; when set to false, no search action happens
+   * general.autoScroll
+   * - when set to true, clicking the scroll wheel on the mouse activates a
+   *   mouse mode where moving the mouse down scrolls the document downward with
+   *   speed correlated with the distance of the cursor from the original
+   *   position at which the click occurred (and likewise with movement upward);
+   *   if false, this behavior is disabled
+   * general.smoothScroll
+   * - set to true to enable finer page scrolling than line-by-line on page-up,
+   *   page-down, and other such page movements
+   * layout.spellcheckDefault
+   * - an integer:
+   *     0  disables spellchecking
+   *     1  enables spellchecking, but only for multiline text fields
+   *     2  enables spellchecking for all text fields
+   */
+
+  /**
+   * Stores the original value of the spellchecking preference to enable proper
+   * restoration if unchanged (since we're mapping a tristate onto a checkbox).
+   */
+  _storedSpellCheck: 0,
+
+  /**
+   * Returns true if any spellchecking is enabled and false otherwise, caching
+   * the current value to enable proper pref restoration if the checkbox is
+   * never changed.
+   */
+  readCheckSpelling: function ()
+  {
+    var pref = document.getElementById("layout.spellcheckDefault");
+    this._storedSpellCheck = pref.value;
+
+    return (pref.value != 0);
+  },
+
+  /**
+   * Returns the value of the spellchecking preference represented by UI,
+   * preserving the preference's "hidden" value if the preference is
+   * unchanged and represents a value not strictly allowed in UI.
+   */
+  writeCheckSpelling: function ()
+  {
+    var checkbox = document.getElementById("checkSpelling");
+    return checkbox.checked ? (this._storedSpellCheck == 2 ? 2 : 1) : 0;
+  },
+
+  /**
+   * security.OCSP.enabled is an integer value for legacy reasons.
+   * A value of 1 means OCSP is enabled. Any other value means it is disabled.
+   */
+  readEnableOCSP: function ()
+  {
+    var preference = document.getElementById("security.OCSP.enabled");
+    // This is the case if the preference is the default value.
+    if (preference.value === undefined) {
+      return true;
+    }
+    return preference.value == 1;
+  },
+
+  /**
+   * See documentation for readEnableOCSP.
+   */
+  writeEnableOCSP: function ()
+  {
+    var checkbox = document.getElementById("enableOCSP");
+    return checkbox.checked ? 1 : 0;
+  },
+
+  /**
+   * When the user toggles the layers.acceleration.disabled pref,
+   * sync its new value to the gfx.direct2d.disabled pref too.
+   */
+  updateHardwareAcceleration: function()
+  {
+#ifdef XP_WIN
+    var fromPref = document.getElementById("layers.acceleration.disabled");
+    var toPref = document.getElementById("gfx.direct2d.disabled");
+    toPref.value = fromPref.value;
+#endif
+  },
+
+  // DATA CHOICES TAB
+
+  /**
+   * opening links behind a modal dialog is poor form. Work around flawed text-link handling here.
+   */
+  openTextLink: function (evt) {
+    let where = Services.prefs.getBoolPref("browser.preferences.instantApply") ? "tab" : "window";
+    openUILinkIn(evt.target.getAttribute("href"), where);
+    evt.preventDefault();
+  },
+
+  /**
+   * Set up or hide the Learn More links for various data collection options
+   */
+  _setupLearnMoreLink: function (pref, element) {
+    // set up the Learn More link with the correct URL
+    let url = Services.prefs.getCharPref(pref);
+    let el = document.getElementById(element);
+
+    if (url) {
+      el.setAttribute("href", url);
+    } else {
+      el.setAttribute("hidden", "true");
+    }
+  },
+
+  // NETWORK TAB
+
+  /*
+   * Preferences:
+   *
+   * browser.cache.disk.capacity
+   * - the size of the browser cache in KB
+   * - Only used if browser.cache.disk.smart_size.enabled is disabled
+   */
+
+  /**
+   * Displays a dialog in which proxy settings may be changed.
+   */
+  showConnections: function ()
+  {
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/connection.xul",
+                                           "", null);
+  },
+
+  // Retrieves the amount of space currently used by disk cache
+  updateActualCacheSize: function ()
+  {
+    var sum = 0;
+    function updateUI(consumption) {
+      var actualSizeLabel = document.getElementById("actualDiskCacheSize");
+      var sizeStrings = DownloadUtils.convertByteUnits(consumption);
+      var prefStrBundle = document.getElementById("bundlePreferences");
+      var sizeStr = prefStrBundle.getFormattedString("actualDiskCacheSize", sizeStrings);
+      actualSizeLabel.value = sizeStr;
+    }
+
+    Visitor.prototype = {
+      expected: 0,
+      sum: 0,
+      QueryInterface: function listener_qi(iid) {
+        if (iid.equals(Components.interfaces.nsISupports) ||
+            iid.equals(Components.interfaces.nsICacheStorageVisitor)) {
+          return this;
+        }
+        throw Components.results.NS_ERROR_NO_INTERFACE;
+      },
+      onCacheStorageInfo: function(num, consumption)
+      {
+        this.sum += consumption;
+        if (!--this.expected)
+          updateUI(this.sum);
+      }
+    };
+    function Visitor(callbacksExpected) {
+      this.expected = callbacksExpected;
+    }
+
+    var cacheService =
+      Components.classes["@mozilla.org/netwerk/cache-storage-service;1"]
+                .getService(Components.interfaces.nsICacheStorageService);
+    // non-anonymous
+    var storage1 = cacheService.diskCacheStorage(LoadContextInfo.default, false);
+    // anonymous
+    var storage2 = cacheService.diskCacheStorage(LoadContextInfo.anonymous, false);
+
+    // expect 2 callbacks
+    var visitor = new Visitor(2);
+    storage1.asyncVisitStorage(visitor, false /* Do not walk entries */);
+    storage2.asyncVisitStorage(visitor, false /* Do not walk entries */);
+  },
+
+  // Retrieves the amount of space currently used by offline cache
+  updateActualAppCacheSize: function ()
+  {
+    var visitor = {
+      onCacheStorageInfo: function (aEntryCount, aConsumption, aCapacity, aDiskDirectory)
+      {
+        var actualSizeLabel = document.getElementById("actualAppCacheSize");
+        var sizeStrings = DownloadUtils.convertByteUnits(aConsumption);
+        var prefStrBundle = document.getElementById("bundlePreferences");
+        var sizeStr = prefStrBundle.getFormattedString("actualAppCacheSize", sizeStrings);
+        actualSizeLabel.value = sizeStr;
+      }
+    };
+
+    var cacheService =
+      Components.classes["@mozilla.org/netwerk/cache-storage-service;1"]
+                .getService(Components.interfaces.nsICacheStorageService);
+    var storage = cacheService.appCacheStorage(LoadContextInfo.default, null);
+    storage.asyncVisitStorage(visitor, false);
+  },
+
+  updateCacheSizeUI: function (smartSizeEnabled)
+  {
+    document.getElementById("useCacheBefore").disabled = smartSizeEnabled;
+    document.getElementById("cacheSize").disabled = smartSizeEnabled;
+    document.getElementById("useCacheAfter").disabled = smartSizeEnabled;
+  },
+
+  readSmartSizeEnabled: function ()
+  {
+    // The smart_size.enabled preference element is inverted="true", so its
+    // value is the opposite of the actual pref value
+    var disabled = document.getElementById("browser.cache.disk.smart_size.enabled").value;
+    this.updateCacheSizeUI(!disabled);
+  },
+
+  /**
+   * Converts the cache size from units of KB to units of MB and returns that
+   * value.
+   */
+  readCacheSize: function ()
+  {
+    var preference = document.getElementById("browser.cache.disk.capacity");
+    return preference.value / 1024;
+  },
+
+  /**
+   * Converts the cache size as specified in UI (in MB) to KB and returns that
+   * value.
+   */
+  writeCacheSize: function ()
+  {
+    var cacheSize = document.getElementById("cacheSize");
+    var intValue = parseInt(cacheSize.value, 10);
+    return isNaN(intValue) ? 0 : intValue * 1024;
+  },
+
+  /**
+   * Clears the cache.
+   */
+  clearCache: function ()
+  {
+    var cache = Components.classes["@mozilla.org/netwerk/cache-storage-service;1"]
+                                 .getService(Components.interfaces.nsICacheStorageService);
+    try {
+      cache.clear();
+    } catch(ex) {}
+    this.updateActualCacheSize();
+  },
+
+  /**
+   * Clears the application cache.
+   */
+  clearOfflineAppCache: function ()
+  {
+    Components.utils.import("resource:///modules/offlineAppCache.jsm");
+    OfflineAppCacheHelper.clear();
+
+    this.updateActualAppCacheSize();
+    this.updateOfflineApps();
+  },
+
+  updateOfflineAppsPermissions: function()
+  {
+    var permPref = document.getElementById("offline-apps.permissions");
+    var allowPref = document.getElementById("offline-apps.allow_by_default");
+    var notifyPref = document.getElementById("browser.offline-apps.notify");
+    switch (permPref.value) {
+      case 0: allowPref.value = false;
+              notifyPref.value = false;
+              break;
+      case 1: allowPref.value = false;
+              notifyPref.value = true;
+              break;
+      case 2: allowPref.value = true;
+              notifyPref.value = true;
+              break;
+      default: console.error("Preference error: Invalid value ",permPref.value," for offline app permissions - resetting to default.");
+               permPref.value = 2;
+               allowPref.value = true;
+               notifyPref.value = true;
+    }
+    // Set state of "Exceptions" button accordingly.
+    var button = document.getElementById("offlineNotifyExceptions");
+    button.disabled = !allowPref.value && !notifyPref.value;
+  },
+      
+  showOfflineExceptions: function()
+  {
+    var bundlePreferences = document.getElementById("bundlePreferences");
+    var params = { blockVisible     : false,
+                   sessionVisible   : false,
+                   allowVisible     : false,
+                   prefilledHost    : "",
+                   permissionType   : "offline-app",
+                   manageCapability : Components.interfaces.nsIPermissionManager.DENY_ACTION,
+                   windowTitle      : bundlePreferences.getString("offlinepermissionstitle"),
+                   introText        : bundlePreferences.getString("offlinepermissionstext") };
+    document.documentElement.openWindow("Browser:Permissions",
+                                        "chrome://browser/content/preferences/permissions.xul",
+                                        "", params);
+  },
+
+  // XXX: duplicated in browser.js
+  _getOfflineAppUsage: function (perm, groups)
+  {
+    var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
+                       getService(Components.interfaces.nsIApplicationCacheService);
+    if (!groups)
+      groups = cacheService.getGroups();
+
+    var ios = Components.classes["@mozilla.org/network/io-service;1"].
+              getService(Components.interfaces.nsIIOService);
+
+    var usage = 0;
+    for (var i = 0; i < groups.length; i++) {
+      var uri = ios.newURI(groups[i], null, null);
+      if (perm.matchesURI(uri, true)) {
+        var cache = cacheService.getActiveCache(groups[i]);
+        usage += cache.usage;
+      }
+    }
+
+    return usage;
+  },
+
+  /**
+   * Updates the list of offline applications
+   */
+  updateOfflineApps: function ()
+  {
+    var pm = Components.classes["@mozilla.org/permissionmanager;1"]
+                       .getService(Components.interfaces.nsIPermissionManager);
+
+    var list = document.getElementById("offlineAppsList");
+    while (list.firstChild) {
+      list.removeChild(list.firstChild);
+    }
+
+    var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
+                       getService(Components.interfaces.nsIApplicationCacheService);
+    var groups = cacheService.getGroups();
+
+    var bundle = document.getElementById("bundlePreferences");
+
+    var enumerator = pm.enumerator;
+    while (enumerator.hasMoreElements()) {
+      var perm = enumerator.getNext().QueryInterface(Components.interfaces.nsIPermission);
+      if (perm.type == "offline-app" &&
+          perm.capability != Components.interfaces.nsIPermissionManager.DEFAULT_ACTION &&
+          perm.capability != Components.interfaces.nsIPermissionManager.DENY_ACTION) {
+        var row = document.createElement("listitem");
+        row.id = "";
+        row.className = "offlineapp";
+        row.setAttribute("origin", perm.principal.origin);
+        var converted = DownloadUtils.
+                        convertByteUnits(this._getOfflineAppUsage(perm, groups));
+        row.setAttribute("usage",
+                         bundle.getFormattedString("offlineAppUsage",
+                                                   converted));
+        list.appendChild(row);
+      }
+    }
+  },
+
+  offlineAppSelected: function()
+  {
+    var removeButton = document.getElementById("offlineAppsListRemove");
+    var list = document.getElementById("offlineAppsList");
+    if (list.selectedItem) {
+      removeButton.setAttribute("disabled", "false");
+    } else {
+      removeButton.setAttribute("disabled", "true");
+    }
+  },
+
+  removeOfflineApp: function()
+  {
+    var list = document.getElementById("offlineAppsList");
+    var item = list.selectedItem;
+    var origin = item.getAttribute("origin");
+    var principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
+
+    var prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+                            .getService(Components.interfaces.nsIPromptService);
+    var flags = prompts.BUTTON_TITLE_IS_STRING * prompts.BUTTON_POS_0 +
+                prompts.BUTTON_TITLE_CANCEL * prompts.BUTTON_POS_1;
+
+    var bundle = document.getElementById("bundlePreferences");
+    var title = bundle.getString("offlineAppRemoveTitle");
+    var prompt = bundle.getFormattedString("offlineAppRemovePrompt", [principal.URI.prePath]);
+    var confirm = bundle.getString("offlineAppRemoveConfirm");
+    var result = prompts.confirmEx(window, title, prompt, flags, confirm,
+                                   null, null, null, {});
+    if (result != 0)
+      return;
+
+    // get the permission
+    var pm = Components.classes["@mozilla.org/permissionmanager;1"]
+                       .getService(Components.interfaces.nsIPermissionManager);
+    var perm = pm.getPermissionObject(principal, "offline-app", true);
+    if (perm) {
+      // clear offline cache entries
+      try {
+        var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
+                           getService(Components.interfaces.nsIApplicationCacheService);
+        var groups = cacheService.getGroups();
+        for (var i = 0; i < groups.length; i++) {
+          var uri = Services.io.newURI(groups[i], null, null);
+          if (perm.matchesURI(uri, true)) {
+            var cache = cacheService.getActiveCache(groups[i]);
+            cache.discard();
+          }
+        }
+      } catch (e) {}
+
+      pm.removePermission(perm);
+    }
+    list.removeChild(item);
+    gAdvancedPane.offlineAppSelected();
+    this.updateActualAppCacheSize();
+  },
+
+  // UPDATE TAB
+
+  /*
+   * Preferences:
+   *
+   * app.update.enabled
+   * - true if updates to the application are enabled, false otherwise
+   * extensions.update.enabled
+   * - true if updates to extensions and themes are enabled, false otherwise
+   * browser.search.update
+   * - true if updates to search engines are enabled, false otherwise
+   * app.update.auto
+   * - true if updates should be automatically downloaded and installed,
+   *   possibly with a warning if incompatible extensions are installed (see
+   *   app.update.mode); false if the user should be asked what he wants to do
+   *   when an update is available
+   * app.update.mode
+   * - an integer:
+   *     0    do not warn if an update will disable extensions or themes
+   *     1    warn if an update will disable extensions or themes
+   *     2    warn if an update will disable extensions or themes *or* if the
+   *          update is a major update
+   */
+
+#ifdef MOZ_UPDATER
+  /**
+   * Selects the item of the radiogroup, and sets the warnIncompatible checkbox
+   * based on the pref values and locked states.
+   *
+   * UI state matrix for update preference conditions
+   *
+   * UI Components:                              Preferences
+   * Radiogroup                                  i   = app.update.enabled
+   * Warn before disabling extensions checkbox   ii  = app.update.auto
+   *                                             iii = app.update.mode
+   *
+   * Disabled states:
+   * Element           pref  value  locked  disabled
+   * radiogroup        i     t/f    f       false
+   *                   i     t/f    *t*     *true*
+   *                   ii    t/f    f       false
+   *                   ii    t/f    *t*     *true*
+   *                   iii   0/1/2  t/f     false
+   * warnIncompatible  i     t      f       false
+   *                   i     t      *t*     *true*
+   *                   i     *f*    t/f     *true*
+   *                   ii    t      f       false
+   *                   ii    t      *t*     *true*
+   *                   ii    *f*    t/f     *true*
+   *                   iii   0/1/2  f       false
+   *                   iii   0/1/2  *t*     *true*
+   */
+  updateReadPrefs: function ()
+  {
+    var enabledPref = document.getElementById("app.update.enabled");
+    var autoPref = document.getElementById("app.update.auto");
+    var radiogroup = document.getElementById("updateRadioGroup");
+
+    if (!enabledPref.value)   // Don't care for autoPref.value in this case.
+      radiogroup.value="manual";    // 3. Never check for updates.
+    else if (autoPref.value)  // enabledPref.value && autoPref.value
+      radiogroup.value="auto";      // 1. Automatically install updates for Desktop only
+    else                      // enabledPref.value && !autoPref.value
+      radiogroup.value="checkOnly"; // 2. Check, but let me choose
+
+    var canCheck = Components.classes["@mozilla.org/updates/update-service;1"].
+                     getService(Components.interfaces.nsIApplicationUpdateService).
+                     canCheckForUpdates;
+    // canCheck is false if the enabledPref is false and locked,
+    // or the binary platform or OS version is not known.
+    // A locked pref is sufficient to disable the radiogroup.
+    radiogroup.disabled = !canCheck || enabledPref.locked || autoPref.locked;
+
+    var modePref = document.getElementById("app.update.mode");
+    var warnIncompatible = document.getElementById("warnIncompatible");
+    // the warnIncompatible checkbox value is set by readAddonWarn
+    warnIncompatible.disabled = radiogroup.disabled || modePref.locked ||
+                                !enabledPref.value || !autoPref.value;
+  },
+
+  /**
+   * Sets the pref values based on the selected item of the radiogroup,
+   * and sets the disabled state of the warnIncompatible checkbox accordingly.
+   */
+  updateWritePrefs: function ()
+  {
+    var enabledPref = document.getElementById("app.update.enabled");
+    var autoPref = document.getElementById("app.update.auto");
+    var radiogroup = document.getElementById("updateRadioGroup");
+    switch (radiogroup.value) {
+      case "auto":      // 1. Automatically install updates for Desktop only
+        enabledPref.value = true;
+        autoPref.value = true;
+        break;
+      case "checkOnly": // 2. Check, but let me choose
+        enabledPref.value = true;
+        autoPref.value = false;
+        break;
+      case "manual":    // 3. Never check for updates.
+        enabledPref.value = false;
+        autoPref.value = false;
+    }
+
+    var warnIncompatible = document.getElementById("warnIncompatible");
+    var modePref = document.getElementById("app.update.mode");
+    warnIncompatible.disabled = enabledPref.locked || !enabledPref.value ||
+                                autoPref.locked || !autoPref.value ||
+                                modePref.locked;
+
+  },
+
+  /**
+   * Stores the value of the app.update.mode preference, which is a tristate
+   * integer preference.  We store the value here so that we can properly
+   * restore the preference value if the UI reflecting the preference value
+   * is in a state which can represent either of two integer values (as
+   * opposed to only one possible value in the other UI state).
+   */
+  _modePreference: -1,
+
+  /**
+   * Reads the app.update.mode preference and converts its value into a
+   * true/false value for use in determining whether the "Warn me if this will
+   * disable extensions or themes" checkbox is checked.  We also save the value
+   * of the preference so that the preference value can be properly restored if
+   * the user's preferences cannot adequately be expressed by a single checkbox.
+   *
+   * app.update.mode          Checkbox State    Meaning
+   * 0                        Unchecked         Do not warn
+   * 1                        Checked           Warn if there are incompatibilities
+   * 2                        Checked           Warn if there are incompatibilities,
+   *                                            or the update is major.
+   */
+  readAddonWarn: function ()
+  {
+    var preference = document.getElementById("app.update.mode");
+    var warn = preference.value != 0;
+    gAdvancedPane._modePreference = warn ? preference.value : 1;
+    return warn;
+  },
+
+  /**
+   * Converts the state of the "Warn me if this will disable extensions or
+   * themes" checkbox into the integer preference which represents it,
+   * returning that value.
+   */
+  writeAddonWarn: function ()
+  {
+    var warnIncompatible = document.getElementById("warnIncompatible");
+    return !warnIncompatible.checked ? 0 : gAdvancedPane._modePreference;
+  },
+
+  /**
+   * Displays the history of installed updates.
+   */
+  showUpdates: function ()
+  {
+    var prompter = Components.classes["@mozilla.org/updates/update-prompt;1"]
+                             .createInstance(Components.interfaces.nsIUpdatePrompt);
+    prompter.showUpdateHistory(window);
+  },
+#endif
+
+  // CERTIFICATES TAB
+
+  /*
+   * Preferences:
+   *
+   * security.default_personal_cert
+   * - a string:
+   *     "Select Automatically"   select a certificate automatically when a site
+   *                              requests one
+   *     "Ask Every Time"         present a dialog to the user so he can select
+   *                              the certificate to use on a site which
+   *                              requests one
+   */
+
+  /**
+   * Displays the user's certificates and associated options.
+   */
+  showCertificates: function ()
+  {
+    document.documentElement.openWindow("mozilla:certmanager",
+                                        "chrome://pippki/content/certManager.xul",
+                                        "", null);
+  },
+
+  /**
+   * Displays a dialog from which the user can manage his security devices.
+   */
+  showSecurityDevices: function ()
+  {
+    document.documentElement.openWindow("mozilla:devicemanager",
+                                        "chrome://pippki/content/device_manager.xul",
+                                        "", null);
+  }
+#ifdef HAVE_SHELL_SERVICE
+  ,
+
+  // SYSTEM DEFAULTS
+
+  /*
+   * Preferences:
+   *
+   * browser.shell.checkDefault
+   * - true if a default-browser check (and prompt to make it so if necessary)
+   *   occurs at startup, false otherwise
+   */
+
+  /**
+   * Show button for setting browser as default browser or information that
+   * browser is already the default browser.
+   */
+  updateSetDefaultBrowser: function()
+  {
+    let shellSvc = getShellService();
+    let setDefaultPane = document.getElementById("setDefaultPane");
+    if (!shellSvc) {
+      setDefaultPane.hidden = true;
+      document.getElementById("alwaysCheckDefault").disabled = true;
+      return;
+    }
+    let selectedIndex =
+      shellSvc.isDefaultBrowser(false, true) ? 1 : 0;
+    setDefaultPane.selectedIndex = selectedIndex;
+  },
+
+  /**
+   * Set browser as the operating system default browser.
+   */
+  setDefaultBrowser: function()
+  {
+    let shellSvc = getShellService();
+    if (!shellSvc)
+      return;
+    try {
+      let claimAllTypes = true;
+#ifdef XP_WIN
+      // In Windows 8+, the UI for selecting default protocol is much
+      // nicer than the UI for setting file type associations. So we
+      // only show the protocol association screen on Windows 8+.
+      // Windows 8 is version 6.2.
+      let version = Services.sysinfo.getProperty("version");
+      claimAllTypes = (parseFloat(version) < 6.2);
+#endif
+      shellSvc.setDefaultBrowser(claimAllTypes, false);
+    } catch (ex) {
+      Cu.reportError(ex);
+      return;
+    }
+    let selectedIndex =
+      shellSvc.isDefaultBrowser(false, true) ? 1 : 0;
+    document.getElementById("setDefaultPane").selectedIndex = selectedIndex;
+  }
+#endif
+};
diff --git a/webbrowser/components/preferences/advanced.xul b/webbrowser/components/preferences/advanced.xul
new file mode 100644
index 0000000..e5f3bb1
--- /dev/null
+++ b/webbrowser/components/preferences/advanced.xul
@@ -0,0 +1,465 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<!DOCTYPE overlay [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+%brandDTD;
+<!ENTITY % advancedDTD SYSTEM "chrome://browser/locale/preferences/advanced.dtd">
+%advancedDTD;
+<!ENTITY % privacyDTD SYSTEM "chrome://browser/locale/preferences/privacy.dtd">
+%privacyDTD;
+]>
+
+<overlay id="AdvancedPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <prefpane id="paneAdvanced" onpaneload="gAdvancedPane.init();">
+
+    <preferences id="advancedPreferences">
+      <preference id="browser.preferences.advanced.selectedTabIndex"
+                  name="browser.preferences.advanced.selectedTabIndex"
+                  type="int"/>
+
+      <!--XXX button prefs -->
+
+      <!-- General tab -->
+      <preference id="accessibility.typeaheadfind"     name="accessibility.typeaheadfind"     type="bool"/>
+
+      <preference id="general.autoScroll"              name="general.autoScroll"              type="bool"/>
+      <preference id="general.smoothScroll"            name="general.smoothScroll"            type="bool"/>
+      <preference id="layers.acceleration.disabled"    name="layers.acceleration.disabled"    type="bool"   inverted="true"
+                  onchange="gAdvancedPane.updateHardwareAcceleration()"/>
+#ifdef XP_WIN
+      <preference id="gfx.direct2d.disabled"           name="gfx.direct2d.disabled"           type="bool"   inverted="true"/>
+#endif
+      <preference id="layout.spellcheckDefault"        name="layout.spellcheckDefault"        type="int"/>
+
+#ifdef HAVE_SHELL_SERVICE
+      <preference id="browser.shell.checkDefaultBrowser"
+                  name="browser.shell.checkDefaultBrowser"
+                  type="bool"/>
+
+      <preference id="pref.general.disable_button.default_browser"
+                  name="pref.general.disable_button.default_browser"
+                  type="bool"/>
+#endif
+      <preference id="pref.general.compatmode" name="general.useragent.compatMode"        type="int"/>
+      
+      <preference id="pref.general.captiveportal" name="network.captive-portal-service.enabled" type="bool"/>
+
+      <!-- Network tab -->
+      <preference id="browser.cache.disk.capacity"     name="browser.cache.disk.capacity"     type="int"/>
+
+      <preference id="browser.cache.disk.smart_size.enabled"
+                  name="browser.cache.disk.smart_size.enabled"
+                  inverted="true"
+                  type="bool"/>
+
+      <preference id="offline-apps.permissions"        name="offline-apps.permissions"        type="int"
+                  onchange="gAdvancedPane.updateOfflineAppsPermissions()"/>
+      <preference id="browser.offline-apps.notify"     name="browser.offline-apps.notify"     type="bool"/>
+      <preference id="offline-apps.allow_by_default"   name="offline-apps.allow_by_default"   type="bool"/>
+
+     <!-- Update tab -->
+#ifdef MOZ_UPDATER
+      <preference id="app.update.enabled"              name="app.update.enabled"              type="bool"/>
+      <preference id="app.update.auto"                 name="app.update.auto"                 type="bool"/>
+      <preference id="app.update.mode"                 name="app.update.mode"                 type="int"/>
+
+      <preference id="app.update.disable_button.showUpdateHistory"
+                  name="app.update.disable_button.showUpdateHistory"
+                  type="bool"/>
+#endif
+
+      <preference id="browser.search.update"           name="browser.search.update"           type="bool"/>
+
+      <!-- Certificates tab -->
+      <preference id="security.default_personal_cert"  name="security.default_personal_cert"  type="string"/>
+
+      <preference id="security.disable_button.openCertManager"
+                  name="security.disable_button.openCertManager"
+                  type="bool"/>
+      <preference id="security.disable_button.openDeviceManager"
+                  name="security.disable_button.openDeviceManager"
+                  type="bool"/>
+      <preference id="security.OCSP.enabled"
+                  name="security.OCSP.enabled"
+                  type="int"/>
+      <preference id="security.OCSP.require"
+                  name="security.OCSP.require"
+                  type="bool"/>
+
+      <!-- Pale Moon: smooth scrolling tab -->
+      <preference id="general.smoothScroll.lines"                    name="general.smoothScroll.lines"                    type="bool"/>
+      <preference id="general.smoothScroll.lines.durationMinMS"      name="general.smoothScroll.lines.durationMinMS"      type="int"/>
+      <preference id="general.smoothScroll.lines.durationMaxMS"      name="general.smoothScroll.lines.durationMaxMS"      type="int"/>
+      <preference id="general.smoothScroll.pages"                    name="general.smoothScroll.pages"                    type="bool"/>
+      <preference id="general.smoothScroll.pages.durationMinMS"      name="general.smoothScroll.pages.durationMinMS"      type="int"/>
+      <preference id="general.smoothScroll.pages.durationMaxMS"      name="general.smoothScroll.pages.durationMaxMS"      type="int"/>
+      <preference id="general.smoothScroll.mouseWheel"               name="general.smoothScroll.mouseWheel"                   type="bool"/>
+      <preference id="general.smoothScroll.mouseWheel.durationMinMS" name="general.smoothScroll.mouseWheel.durationMinMS"     type="int"/>
+      <preference id="general.smoothScroll.mouseWheel.durationMaxMS" name="general.smoothScroll.mouseWheel.durationMaxMS"     type="int"/>
+      <preference id="general.smoothScroll.scrollbars"               name="general.smoothScroll.scrollbars"               type="bool"/>
+      <preference id="general.smoothScroll.scrollbars.durationMinMS" name="general.smoothScroll.scrollbars.durationMinMS" type="int"/>
+      <preference id="general.smoothScroll.scrollbars.durationMaxMS" name="general.smoothScroll.scrollbars.durationMaxMS" type="int"/>
+      
+      <preference id="mousewheel.default.delta_multiplier_y"         name="mousewheel.default.delta_multiplier_y"         type="int"/>
+    </preferences>
+
+#ifdef HAVE_SHELL_SERVICE
+    <stringbundle id="bundleShell" src="chrome://browser/locale/shellservice.properties"/>
+    <stringbundle id="bundleBrand" src="chrome://branding/locale/brand.properties"/>
+#endif
+    <stringbundle id="bundlePreferences" src="chrome://browser/locale/preferences/preferences.properties"/>
+
+    <script type="application/javascript" src="chrome://browser/content/preferences/advanced.js"/>
+
+    <tabbox id="advancedPrefs" flex="1"
+            onselect="gAdvancedPane.tabSelectionChanged();">
+
+      <tabs id="tabsElement">
+        <tab id="generalTab" label="&generalTab.label;" helpTopic="prefs-advanced-general"/>
+        <tab id="networkTab" label="&networkTab.label;" helpTopic="prefs-advanced-network"/>
+        <tab id="updateTab" label="&updateTab.label;"  helpTopic="prefs-advanced-update"/>
+        <tab id="encryptionTab" label="&certificateTab.label;" helpTopic="prefs-advanced-encryption"/>
+        <tab id="scrollparamTab" label="&scrollparamTab.label;" helpTopic="prefs-advanced-scrollparams"/>      
+      </tabs>
+
+      <tabpanels flex="1">
+
+        <!-- General -->
+        <tabpanel id="generalPanel" orient="vertical">
+
+          <!-- Accessibility -->
+          <groupbox id="accessibilityGroup" align="start">
+            <caption label="&accessibility.label;"/>
+
+            <checkbox id="searchStartTyping"
+                      label="&searchStartTyping.label;"
+                      accesskey="&searchStartTyping.accesskey;"
+                      preference="accessibility.typeaheadfind"/>
+          </groupbox>
+
+          <!-- Browsing -->
+          <groupbox id="browsingGroup" align="start">
+            <caption label="&browsing.label;"/>
+
+            <checkbox id="useAutoScroll"
+                      label="&useAutoScroll.label;"
+                      accesskey="&useAutoScroll.accesskey;"
+                      preference="general.autoScroll"/>
+            <checkbox id="allowHWAccel"
+                      label="&allowHWAccel.label;"
+                      accesskey="&allowHWAccel.accesskey;"
+                      preference="layers.acceleration.disabled"/>
+            <checkbox id="checkSpelling"
+                      label="&checkSpelling.label;"
+                      accesskey="&checkSpelling.accesskey;"
+                      onsyncfrompreference="return gAdvancedPane.readCheckSpelling();"
+                      onsynctopreference="return gAdvancedPane.writeCheckSpelling();"
+                      preference="layout.spellcheckDefault"/>
+          </groupbox>
+
+#ifdef HAVE_SHELL_SERVICE
+          <!-- System Defaults -->
+          <groupbox id="systemDefaultsGroup" orient="vertical">
+            <caption label="&systemDefaults.label;"/>
+
+            <checkbox id="alwaysCheckDefault" preference="browser.shell.checkDefaultBrowser"
+                      label="&alwaysCheckDefault.label;" accesskey="&alwaysCheckDefault.accesskey;"
+                      flex="1"/>
+            <hbox class="indent">
+              <deck id="setDefaultPane">
+                <button id="setDefaultButton"
+                        label="&setDefault.label;" accesskey="&setDefault.accesskey;"
+                        oncommand="gAdvancedPane.setDefaultBrowser();"
+                        preference="pref.general.disable_button.default_browser"/>
+                <description>&isDefault.label;</description>
+              </deck>
+            </hbox>
+          </groupbox>
+#endif
+          <!-- User Agent compatibility -->
+          <groupbox id="UACompatGroup" orient="vertical">
+            <caption label="&UACompatGroup.label;"/>
+            <hbox align="center">
+              	<label id="UACompat" control="UACompat-menu">&UACompat.label;</label>
+                <menulist id="UACompat-menu" preference="pref.general.compatmode" sizetopopup="always">
+                    <menupopup>
+                        <menuitem label="&UACompat.Native;"  value="0" />
+                        <menuitem label="&UACompat.Gecko;"   value="1" />
+                        <menuitem label="&UACompat.Firefox;" value="2" />
+                    </menupopup>
+                </menulist>
+            </hbox>
+          </groupbox>
+          
+          <!-- Captive portal detection -->
+          <groupbox id="captivePortalGroup" orient="vertical">
+            <caption label="&captivePortalGroup.label;"/>
+            <checkbox id="captivePortalDetect"
+                      label="&captivePortalDetect.label;"
+                      preference="pref.general.captiveportal"/>
+          </groupbox>
+          
+        </tabpanel>
+
+        <!-- Network -->
+        <tabpanel id="networkPanel" orient="vertical">
+
+          <!-- Connection -->
+          <groupbox id="connectionGroup">
+            <caption label="&connection.label;"/>
+
+            <hbox align="center">
+              <description flex="1" control="connectionSettings">&connectionDesc.label;</description>
+              <button id="connectionSettings" icon="network" label="&connectionSettings.label;"
+                      accesskey="&connectionSettings.accesskey;"
+                      oncommand="gAdvancedPane.showConnections();"/>
+            </hbox>
+          </groupbox>
+
+          <!-- Cache -->
+          <groupbox id="cacheGroup">
+            <caption label="&httpCache.label;"/>
+
+            <hbox align="center">
+              <label id="actualDiskCacheSize" flex="1"/>
+              <button id="clearCacheButton" icon="clear"
+                      label="&clearCacheNow.label;" accesskey="&clearCacheNow.accesskey;"
+                      oncommand="gAdvancedPane.clearCache();"/>
+            </hbox>
+            <checkbox preference="browser.cache.disk.smart_size.enabled"
+                      id="allowSmartSize" flex="1"
+                      onsyncfrompreference="return gAdvancedPane.readSmartSizeEnabled();"
+                      label="&overrideSmartCacheSize.label;"
+                      accesskey="&overrideSmartCacheSize.accesskey;"/>
+            <hbox align="center" class="indent">
+              <label id="useCacheBefore" control="cacheSize"
+                     accesskey="&limitCacheSizeBefore.accesskey;"
+                     value="&limitCacheSizeBefore.label;"/>
+              <textbox id="cacheSize" type="number" size="4" max="1024"
+                       preference="browser.cache.disk.capacity"
+                       onsyncfrompreference="return gAdvancedPane.readCacheSize();"
+                       onsynctopreference="return gAdvancedPane.writeCacheSize();"
+                       aria-labelledby="useCacheBefore cacheSize useCacheAfter"/>
+              <label id="useCacheAfter" flex="1">&limitCacheSizeAfter.label;</label>
+            </hbox>
+          </groupbox>
+
+          <!-- Offline apps -->
+          <groupbox id="offlineGroup">
+            <caption label="&offlineStorage2.label;"/>
+
+            <hbox align="center">
+              <label id="actualAppCacheSize" flex="1"/>
+              <button id="clearOfflineAppCacheButton" icon="clear"
+                      label="&clearOfflineAppCacheNow.label;" accesskey="&clearOfflineAppCacheNow.accesskey;"
+                      oncommand="gAdvancedPane.clearOfflineAppCache();"/>
+            </hbox>
+            <label id="offlineAppsPermsLabel">&offlineAppsPermissions.label;</label>
+            <hbox align="center">
+              <menulist id="offlineAppsPerms-menu" preference="offline-apps.permissions" sizetopopup="always">
+                <menupopup>
+                  <menuitem label="&offlineAppsPermissions.Allow;"  value="2" />
+                  <menuitem label="&offlineAppsPermissions.Ask;"    value="1" />
+                  <menuitem label="&offlineAppsPermissions.Deny;"   value="0" />
+                </menupopup>
+              </menulist>
+              <spacer flex="1"/>
+              <button id="offlineNotifyExceptions"
+                      label="&offlineNotifyExceptions.label;"
+                      accesskey="&offlineNotifyExceptions.accesskey;"
+                      oncommand="gAdvancedPane.showOfflineExceptions();"/>
+            </hbox>
+            <hbox>
+              <vbox flex="1">
+                <label id="offlineAppsListLabel">&offlineAppsList2.label;</label>
+                <listbox id="offlineAppsList"
+                         style="height: &offlineAppsList.height;;"
+                         flex="1"
+                         aria-labelledby="offlineAppsListLabel"
+                         onselect="gAdvancedPane.offlineAppSelected(event);">
+                </listbox>
+              </vbox>
+              <vbox pack="end">
+                <button id="offlineAppsListRemove"
+                        disabled="true"
+                        label="&offlineAppsListRemove.label;"
+                        accesskey="&offlineAppsListRemove.accesskey;"
+                        oncommand="gAdvancedPane.removeOfflineApp();"/>
+              </vbox>
+            </hbox>
+          </groupbox>
+        </tabpanel>
+
+        <!-- Update -->
+        <tabpanel id="updatePanel" orient="vertical">
+#ifdef MOZ_UPDATER
+          <groupbox id="updateApp">
+            <caption label="&updateApp.label;"/>
+            <radiogroup id="updateRadioGroup"
+                        oncommand="gAdvancedPane.updateWritePrefs();">
+              <radio id="autoDesktop"
+                     value="auto"
+                     label="&updateAuto1.label;"
+                     accesskey="&updateAuto1.accesskey;"/>
+              <hbox class="indent">
+                <checkbox id="warnIncompatible"
+                          label="&updateAutoAddonWarn.label;"
+                          accesskey="&updateAutoAddonWarn.accesskey;"
+                          preference="app.update.mode"
+                          onsyncfrompreference="return gAdvancedPane.readAddonWarn();"
+                          onsynctopreference="return gAdvancedPane.writeAddonWarn();"/>
+              </hbox>
+              <radio value="checkOnly"
+                     label="&updateCheck.label;"
+                     accesskey="&updateCheck.accesskey;"/>
+              <radio value="manual"
+                     label="&updateManual.label;"
+                     accesskey="&updateManual.accesskey;"/>
+            </radiogroup>
+
+            <hbox>
+              <button id="showUpdateHistory"
+                      label="&updateHistory.label;"
+                      accesskey="&updateHistory.accesskey;"
+                      preference="app.update.disable_button.showUpdateHistory"
+                      oncommand="gAdvancedPane.showUpdates();"/>
+            </hbox>
+          </groupbox>
+#endif
+          <groupbox id="updateOthers">
+            <caption label="&updateOthers.label;"/>
+            <checkbox id="enableSearchUpdate"
+                      label="&enableSearchUpdate.label;"
+                      accesskey="&enableSearchUpdate.accesskey;"
+                      preference="browser.search.update"/>
+          </groupbox>
+        </tabpanel>
+
+        <!-- Certificates -->
+        <tabpanel id="encryptionPanel" orient="vertical">
+
+            <!--
+              The values on these radio buttons may look like l12y issues, but
+              they're not - this preference uses *those strings* as its values.
+              I KID YOU NOT.
+            -->
+            
+            <groupbox>
+                <caption label="&certGroup.label;"/>
+                <description id="CertSelectionDesc" control="certSelection">&certSelection.description;</description>
+                <radiogroup id="certSelection" orient="horizontal" preftype="string"
+                            preference="security.default_personal_cert"
+                            aria-labelledby="CertSelectionDesc">
+                  <radio label="&certs.auto;" accesskey="&certs.auto.accesskey;"
+                         value="Select Automatically"/>
+                  <radio label="&certs.ask;" accesskey="&certs.ask.accesskey;"
+                         value="Ask Every Time"/>
+                </radiogroup>
+            </groupbox>
+            <groupbox>
+                <caption label="&ocspGroup.label;"/>
+                <checkbox id="enableOCSP"
+                          label="&enableOCSP.label;"
+                          accesskey="&enableOCSP.accesskey;"
+                          onsyncfrompreference="return gAdvancedPane.readEnableOCSP();"
+                          onsynctopreference="return gAdvancedPane.writeEnableOCSP();"
+                          preference="security.OCSP.enabled"/>
+                <checkbox id="requireOCSP"
+                          label="&requireOCSP.label;"
+                          accesskey="&requireOCSP.accesskey;"
+                          preference="security.OCSP.require"/>
+            </groupbox>
+
+            <separator/>
+
+            <hbox>
+                <button id="viewCertificatesButton"
+                        label="&viewCerts.label;" accesskey="&viewCerts.accesskey;"
+                        oncommand="gAdvancedPane.showCertificates();"
+                        preference="security.disable_button.openCertManager"/>
+                <button id="viewSecurityDevicesButton"
+                        label="&viewSecurityDevices.label;" accesskey="&viewSecurityDevices.accesskey;"
+                        oncommand="gAdvancedPane.showSecurityDevices();"
+                        preference="security.disable_button.openDeviceManager"/>
+            </hbox>
+        </tabpanel>
+
+        <!-- Pale Moon: Scrolling tab -->
+        <tabpanel id="scrollparamTab" orient="vertical">
+
+        <checkbox id="useSmoothScrolling"
+                      label="&useSmoothScrolling.label;"
+                      accesskey="&useSmoothScrolling.accesskey;"
+                      preference="general.smoothScroll"/>
+                      
+        <label>&smoothscroll.explain.label;</label>
+        
+        <groupbox>
+          <caption label="&smoothscroll.params.label;"/>
+          
+          <checkbox label="&smoothscroll.mousewheel.label;" preference="general.smoothScroll.mouseWheel"/>
+          <hbox align="center" class="indent">
+            <label value="&smoothscroll.mousewheel.duration;"/>
+            <textbox type="number" size="3" max="500"
+                     preference="general.smoothScroll.mouseWheel.durationMinMS"/>
+            <label>&smoothscroll.to;</label>
+            <textbox type="number" size="4" max="2000"
+                     preference="general.smoothScroll.mouseWheel.durationMaxMS"/>
+            <label flex="1">ms.</label>
+          </hbox>
+          
+          <checkbox label="&smoothscroll.arrowkeys.label;" preference="general.smoothScroll.lines"/>
+          <hbox align="center" class="indent">
+            <label value="&smoothscroll.arrowkeys.duration;"/>
+            <textbox type="number" size="3" max="500"
+                     preference="general.smoothScroll.lines.durationMinMS"/>
+            <label>&smoothscroll.to;</label>
+            <textbox type="number" size="4" max="2000"
+                     preference="general.smoothScroll.lines.durationMaxMS"/>
+            <label flex="1">ms.</label>
+          </hbox>
+          
+          <checkbox label="&smoothscroll.pagekeys.label;" preference="general.smoothScroll.pages"/>
+          <hbox align="center" class="indent">
+            <label value="&smoothscroll.pagekeys.duration;"/>
+            <textbox type="number" size="3" max="500"
+                     preference="general.smoothScroll.pages.durationMinMS"/>
+            <label>&smoothscroll.to;</label>
+            <textbox type="number" size="4" max="2000"
+                     preference="general.smoothScroll.pages.durationMaxMS"/>
+            <label flex="1">ms.</label>
+          </hbox>
+          
+          <checkbox label="&smoothscroll.scrollbar.label;" preference="general.smoothScroll.scrollbars"/>
+          <hbox align="center" class="indent">
+            <label value="&smoothscroll.scrollbar.duration;"/>
+            <textbox type="number" size="3" max="500"
+                     preference="general.smoothScroll.scrollbars.durationMinMS"/>
+            <label>&smoothscroll.to;</label>
+            <textbox type="number" size="4" max="2000"
+                     preference="general.smoothScroll.scrollbars.durationMaxMS"/>
+            <label flex="1">ms.</label>
+          </hbox>
+          
+          <hbox align="center">
+            <label value="&smoothscroll.overall.yspeed.label;"/>
+            <textbox type="number" size="3" min="1" max="999"
+                     preference="mousewheel.default.delta_multiplier_y"/>
+            <label flex="1">%.</label>
+          </hbox>
+        </groupbox>  
+        </tabpanel>
+        <!-- end Smooth scrolling tab -->
+         
+      </tabpanels>
+    </tabbox>
+  </prefpane>
+
+</overlay>
diff --git a/webbrowser/components/preferences/applicationManager.js b/webbrowser/components/preferences/applicationManager.js
new file mode 100644
index 0000000..5213183
--- /dev/null
+++ b/webbrowser/components/preferences/applicationManager.js
@@ -0,0 +1,102 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifdef XP_MACOSX
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+#endif
+
+var gAppManagerDialog = {
+  _removed: [],
+
+  init: function appManager_init() {
+    this.handlerInfo = window.arguments[0];
+
+    var bundle = document.getElementById("appManagerBundle");
+    var contentText;
+    if (this.handlerInfo.type == TYPE_MAYBE_FEED)
+      contentText = bundle.getString("handleWebFeeds");
+    else {
+      var description = gApplicationsPane._describeType(this.handlerInfo);
+      var key =
+        (this.handlerInfo.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo) ? "handleFile"
+                                                                        : "handleProtocol";
+        contentText = bundle.getFormattedString(key, [description]);
+    }
+    contentText = bundle.getFormattedString("descriptionApplications", [contentText]);
+    document.getElementById("appDescription").textContent = contentText;
+
+    var list = document.getElementById("appList");
+    var apps = this.handlerInfo.possibleApplicationHandlers.enumerate();
+    while (apps.hasMoreElements()) {
+      let app = apps.getNext();
+      if (!gApplicationsPane.isValidHandlerApp(app))
+        continue;
+
+      app.QueryInterface(Ci.nsIHandlerApp);
+      var item = list.appendItem(app.name);
+      item.setAttribute("image", gApplicationsPane._getIconURLForHandlerApp(app));
+      item.className = "listitem-iconic";
+      item.app = app;
+    }
+
+    list.selectedIndex = 0;
+  },
+
+  onOK: function appManager_onOK() {
+    if (!this._removed.length) {
+      // return early to avoid calling the |store| method.
+      return;
+    }
+
+    for (var i = 0; i < this._removed.length; ++i)
+      this.handlerInfo.removePossibleApplicationHandler(this._removed[i]);
+
+    this.handlerInfo.store();
+  },
+
+  onCancel: function appManager_onCancel() {
+    // do nothing
+  },
+
+  remove: function appManager_remove() {
+    var list = document.getElementById("appList");
+    this._removed.push(list.selectedItem.app);
+    var index = list.selectedIndex;
+    list.removeItemAt(index);
+    if (list.getRowCount() == 0) {
+      // The list is now empty, make the bottom part disappear
+      document.getElementById("appDetails").hidden = true;
+    }
+    else {
+      // Select the item at the same index, if we removed the last
+      // item of the list, select the previous item
+      if (index == list.getRowCount())
+        --index;
+      list.selectedIndex = index;
+    }
+  },
+
+  onSelect: function appManager_onSelect() {
+    var list = document.getElementById("appList");
+    if (!list.selectedItem) {
+      document.getElementById("remove").disabled = true;
+      return;
+    }
+    document.getElementById("remove").disabled = false;
+    var app = list.selectedItem.app;
+    var address = "";
+    if (app instanceof Ci.nsILocalHandlerApp)
+      address = app.executable.path;
+    else if (app instanceof Ci.nsIWebHandlerApp)
+      address = app.uriTemplate;
+    else if (app instanceof Ci.nsIWebContentHandlerInfo)
+      address = app.uri;
+    document.getElementById("appLocation").value = address;
+    var bundle = document.getElementById("appManagerBundle");
+    var appType = app instanceof Ci.nsILocalHandlerApp ? "descriptionLocalApp"
+                                                       : "descriptionWebApp";
+    document.getElementById("appType").value = bundle.getString(appType);
+  }
+};
diff --git a/webbrowser/components/preferences/applicationManager.xul b/webbrowser/components/preferences/applicationManager.xul
new file mode 100644
index 0000000..b5605c2
--- /dev/null
+++ b/webbrowser/components/preferences/applicationManager.xul
@@ -0,0 +1,59 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+
+<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/applicationManager.dtd">
+
+<dialog id="appManager"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        buttons="accept,cancel"
+        onload="gAppManagerDialog.init();"
+        ondialogaccept="gAppManagerDialog.onOK();"
+        ondialogcancel="gAppManagerDialog.onCancel();"
+        title="&appManager.title;"
+        style="&appManager.style;"
+        persist="screenX screenY">
+
+  <script type="application/javascript"
+          src="chrome://browser/content/utilityOverlay.js"/>
+  <script type="application/javascript"
+          src="chrome://browser/content/preferences/applicationManager.js"/>
+  <script type="application/javascript"
+          src="chrome://browser/content/preferences/applications.js"/>
+
+  <commandset id="appManagerCommandSet">
+    <command id="cmd_remove"
+             oncommand="gAppManagerDialog.remove();"
+             disabled="true"/>
+  </commandset>
+
+  <keyset id="appManagerKeyset">
+    <key id="delete" keycode="VK_DELETE" command="cmd_remove"/>
+  </keyset>
+
+  <stringbundleset id="appManagerBundleset">
+    <stringbundle id="appManagerBundle"
+                  src="chrome://browser/locale/preferences/applicationManager.properties"/>
+  </stringbundleset>
+
+  <description id="appDescription"/>
+  <separator class="thin"/>
+  <hbox flex="1">
+    <listbox id="appList" onselect="gAppManagerDialog.onSelect();" flex="1"/>
+    <vbox>
+      <button id="remove"
+              label="&remove.label;"
+              accesskey="&remove.accesskey;"
+              command="cmd_remove"/>
+      <spacer flex="1"/>
+    </vbox>
+  </hbox>
+  <vbox id="appDetails">
+    <separator class="thin"/>
+    <label id="appType"/>
+    <textbox id="appLocation" readonly="true" class="plain"/>
+  </vbox>
+</dialog>
diff --git a/webbrowser/components/preferences/applications.js b/webbrowser/components/preferences/applications.js
new file mode 100644
index 0000000..d06f9f9
--- /dev/null
+++ b/webbrowser/components/preferences/applications.js
@@ -0,0 +1,1890 @@
+/*
+# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+//****************************************************************************//
+// Constants & Enumeration Values
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cr = Components.results;
+
+Components.utils.import('resource://gre/modules/Services.jsm');
+
+const TYPE_MAYBE_FEED = "application/vnd.mozilla.maybe.feed";
+const TYPE_MAYBE_VIDEO_FEED = "application/vnd.mozilla.maybe.video.feed";
+const TYPE_MAYBE_AUDIO_FEED = "application/vnd.mozilla.maybe.audio.feed";
+
+const PREF_DISABLED_PLUGIN_TYPES = "plugin.disable_full_page_plugin_for_types";
+
+// Preferences that affect which entries to show in the list.
+const PREF_SHOW_PLUGINS_IN_LIST = "browser.download.show_plugins_in_list";
+const PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS =
+  "browser.download.hide_plugins_without_extensions";
+
+/*
+ * Preferences where we store handling information about the feed type.
+ *
+ * browser.feeds.handler
+ * - "bookmarks", "reader" (clarified further using the .default preference),
+ *   or "ask" -- indicates the default handler being used to process feeds;
+ *   "bookmarks" is obsolete; to specify that the handler is bookmarks,
+ *   set browser.feeds.handler.default to "bookmarks";
+ *
+ * browser.feeds.handler.default
+ * - "bookmarks", "client" or "web" -- indicates the chosen feed reader used
+ *   to display feeds, either transiently (i.e., when the "use as default"
+ *   checkbox is unchecked, corresponds to when browser.feeds.handler=="ask")
+ *   or more permanently (i.e., the item displayed in the dropdown in Feeds
+ *   preferences)
+ *
+ * browser.feeds.handler.webservice
+ * - the URL of the currently selected web service used to read feeds
+ *
+ * browser.feeds.handlers.application
+ * - nsILocalFile, stores the current client-side feed reading app if one has
+ *   been chosen
+ */
+const PREF_FEED_SELECTED_APP    = "browser.feeds.handlers.application";
+const PREF_FEED_SELECTED_WEB    = "browser.feeds.handlers.webservice";
+const PREF_FEED_SELECTED_ACTION = "browser.feeds.handler";
+const PREF_FEED_SELECTED_READER = "browser.feeds.handler.default";
+
+const PREF_VIDEO_FEED_SELECTED_APP    = "browser.videoFeeds.handlers.application";
+const PREF_VIDEO_FEED_SELECTED_WEB    = "browser.videoFeeds.handlers.webservice";
+const PREF_VIDEO_FEED_SELECTED_ACTION = "browser.videoFeeds.handler";
+const PREF_VIDEO_FEED_SELECTED_READER = "browser.videoFeeds.handler.default";
+
+const PREF_AUDIO_FEED_SELECTED_APP    = "browser.audioFeeds.handlers.application";
+const PREF_AUDIO_FEED_SELECTED_WEB    = "browser.audioFeeds.handlers.webservice";
+const PREF_AUDIO_FEED_SELECTED_ACTION = "browser.audioFeeds.handler";
+const PREF_AUDIO_FEED_SELECTED_READER = "browser.audioFeeds.handler.default";
+
+// The nsHandlerInfoAction enumeration values in nsIHandlerInfo identify
+// the actions the application can take with content of various types.
+// But since nsIHandlerInfo doesn't support plugins, there's no value
+// identifying the "use plugin" action, so we use this constant instead.
+const kActionUsePlugin = 5;
+
+/*
+#ifdef MOZ_WIDGET_GTK
+*/
+const ICON_URL_APP      = "moz-icon://dummy.exe?size=16";
+/*
+#else
+*/
+const ICON_URL_APP      = "chrome://browser/skin/preferences/application.png";
+/*
+#endif
+*/
+
+// For CSS. Can be one of "ask", "save", "plugin" or "feed". If absent, the icon URL
+// was set by us to a custom handler icon and CSS should not try to override it.
+const APP_ICON_ATTR_NAME = "appHandlerIcon";
+
+//****************************************************************************//
+// Utilities
+
+function getFileDisplayName(file) {
+#ifdef XP_WIN
+  if (file instanceof Ci.nsILocalFileWin) {
+    try {
+      return file.getVersionInfoField("FileDescription");
+    } catch (e) {}
+  }
+#endif
+#ifdef XP_MACOSX
+  if (file instanceof Ci.nsILocalFileMac) {
+    try {
+      return file.bundleDisplayName;
+    } catch (e) {}
+  }
+#endif
+  return file.leafName;
+}
+
+function getLocalHandlerApp(aFile) {
+  var localHandlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
+                        createInstance(Ci.nsILocalHandlerApp);
+  localHandlerApp.name = getFileDisplayName(aFile);
+  localHandlerApp.executable = aFile;
+
+  return localHandlerApp;
+}
+
+/**
+ * An enumeration of items in a JS array.
+ *
+ * FIXME: use ArrayConverter once it lands (bug 380839).
+ * 
+ * @constructor
+ */
+function ArrayEnumerator(aItems) {
+  this._index = 0;
+  this._contents = aItems;
+}
+
+ArrayEnumerator.prototype = {
+  _index: 0,
+
+  hasMoreElements: function() {
+    return this._index < this._contents.length;
+  },
+
+  getNext: function() {
+    return this._contents[this._index++];
+  }
+};
+
+function isFeedType(t) {
+  return t == TYPE_MAYBE_FEED || t == TYPE_MAYBE_VIDEO_FEED || t == TYPE_MAYBE_AUDIO_FEED;
+}
+
+//****************************************************************************//
+// HandlerInfoWrapper
+
+/**
+ * This object wraps nsIHandlerInfo with some additional functionality
+ * the Applications prefpane needs to display and allow modification of
+ * the list of handled types.
+ * 
+ * We create an instance of this wrapper for each entry we might display
+ * in the prefpane, and we compose the instances from various sources,
+ * including plugins and the handler service.
+ *
+ * We don't implement all the original nsIHandlerInfo functionality,
+ * just the stuff that the prefpane needs.
+ * 
+ * In theory, all of the custom functionality in this wrapper should get
+ * pushed down into nsIHandlerInfo eventually.
+ */
+function HandlerInfoWrapper(aType, aHandlerInfo) {
+  this._type = aType;
+  this.wrappedHandlerInfo = aHandlerInfo;
+}
+
+HandlerInfoWrapper.prototype = {
+  // The wrapped nsIHandlerInfo object.  In general, this object is private,
+  // but there are a couple cases where callers access it directly for things
+  // we haven't (yet?) implemented, so we make it a public property.
+  wrappedHandlerInfo: null,
+
+
+  //**************************************************************************//
+  // Convenience Utils
+
+  _handlerSvc: Cc["@mozilla.org/uriloader/handler-service;1"].
+               getService(Ci.nsIHandlerService),
+
+  _prefSvc: Cc["@mozilla.org/preferences-service;1"].
+            getService(Ci.nsIPrefBranch),
+
+  _categoryMgr: Cc["@mozilla.org/categorymanager;1"].
+                getService(Ci.nsICategoryManager),
+
+  element: function(aID) {
+    return document.getElementById(aID);
+  },
+
+
+  //**************************************************************************//
+  // nsIHandlerInfo
+
+  // The MIME type or protocol scheme.
+  _type: null,
+  get type() {
+    return this._type;
+  },
+
+  get description() {
+    if (this.wrappedHandlerInfo.description)
+      return this.wrappedHandlerInfo.description;
+
+    if (this.primaryExtension) {
+      var extension = this.primaryExtension.toUpperCase();
+      return this.element("bundlePreferences").getFormattedString("fileEnding",
+                                                                  [extension]);
+    }
+
+    return this.type;
+  },
+
+  get preferredApplicationHandler() {
+    return this.wrappedHandlerInfo.preferredApplicationHandler;
+  },
+
+  set preferredApplicationHandler(aNewValue) {
+    this.wrappedHandlerInfo.preferredApplicationHandler = aNewValue;
+
+    // Make sure the preferred handler is in the set of possible handlers.
+    if (aNewValue)
+      this.addPossibleApplicationHandler(aNewValue)
+  },
+
+  get possibleApplicationHandlers() {
+    return this.wrappedHandlerInfo.possibleApplicationHandlers;
+  },
+
+  addPossibleApplicationHandler: function(aNewHandler) {
+    var possibleApps = this.possibleApplicationHandlers.enumerate();
+    while (possibleApps.hasMoreElements()) {
+      if (possibleApps.getNext().equals(aNewHandler))
+        return;
+    }
+    this.possibleApplicationHandlers.appendElement(aNewHandler, false);
+  },
+
+  removePossibleApplicationHandler: function(aHandler) {
+    var defaultApp = this.preferredApplicationHandler;
+    if (defaultApp && aHandler.equals(defaultApp)) {
+      // If the app we remove was the default app, we must make sure
+      // it won't be used anymore
+      this.alwaysAskBeforeHandling = true;
+      this.preferredApplicationHandler = null;
+    }
+
+    var handlers = this.possibleApplicationHandlers;
+    for (var i = 0; i < handlers.length; ++i) {
+      var handler = handlers.queryElementAt(i, Ci.nsIHandlerApp);
+      if (handler.equals(aHandler)) {
+        handlers.removeElementAt(i);
+        break;
+      }
+    }
+  },
+
+  get hasDefaultHandler() {
+    return this.wrappedHandlerInfo.hasDefaultHandler;
+  },
+
+  get defaultDescription() {
+    return this.wrappedHandlerInfo.defaultDescription;
+  },
+
+  // What to do with content of this type.
+  get preferredAction() {
+    // If we have an enabled plugin, then the action is to use that plugin.
+    if (this.pluginName && !this.isDisabledPluginType)
+      return kActionUsePlugin;
+
+    // If the action is to use a helper app, but we don't have a preferred
+    // handler app, then switch to using the system default, if any; otherwise
+    // fall back to saving to disk, which is the default action in nsMIMEInfo.
+    // Note: "save to disk" is an invalid value for protocol info objects,
+    // but the alwaysAskBeforeHandling getter will detect that situation
+    // and always return true in that case to override this invalid value.
+    if (this.wrappedHandlerInfo.preferredAction == Ci.nsIHandlerInfo.useHelperApp &&
+        !gApplicationsPane.isValidHandlerApp(this.preferredApplicationHandler)) {
+      if (this.wrappedHandlerInfo.hasDefaultHandler)
+        return Ci.nsIHandlerInfo.useSystemDefault;
+      else
+        return Ci.nsIHandlerInfo.saveToDisk;
+    }
+
+    return this.wrappedHandlerInfo.preferredAction;
+  },
+
+  set preferredAction(aNewValue) {
+    // If the action is to use the plugin,
+    // we must set the preferred action to "save to disk".
+    // But only if it's not currently the preferred action.
+    if ((aNewValue == kActionUsePlugin) &&
+        (this.preferredAction != Ci.nsIHandlerInfo.saveToDisk)) {
+      aNewValue = Ci.nsIHandlerInfo.saveToDisk;
+    }
+
+    // We don't modify the preferred action if the new action is to use a plugin
+    // because handler info objects don't understand our custom "use plugin"
+    // value.  Also, leaving it untouched means that we can automatically revert
+    // to the old setting if the user ever removes the plugin.
+
+    if (aNewValue != kActionUsePlugin)
+      this.wrappedHandlerInfo.preferredAction = aNewValue;
+  },
+
+  get alwaysAskBeforeHandling() {
+    // If this type is handled only by a plugin, we can't trust the value
+    // in the handler info object, since it'll be a default based on the absence
+    // of any user configuration, and the default in that case is to always ask,
+    // even though we never ask for content handled by a plugin, so special case
+    // plugin-handled types by returning false here.
+    if (this.pluginName && this.handledOnlyByPlugin)
+      return false;
+
+    // If this is a protocol type and the preferred action is "save to disk",
+    // which is invalid for such types, then return true here to override that
+    // action.  This could happen when the preferred action is to use a helper
+    // app, but the preferredApplicationHandler is invalid, and there isn't
+    // a default handler, so the preferredAction getter returns save to disk
+    // instead.
+    if (!(this.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo) &&
+        this.preferredAction == Ci.nsIHandlerInfo.saveToDisk)
+      return true;
+
+    return this.wrappedHandlerInfo.alwaysAskBeforeHandling;
+  },
+
+  set alwaysAskBeforeHandling(aNewValue) {
+    this.wrappedHandlerInfo.alwaysAskBeforeHandling = aNewValue;
+  },
+
+
+  //**************************************************************************//
+  // nsIMIMEInfo
+
+  // The primary file extension associated with this type, if any.
+  //
+  // XXX Plugin objects contain an array of MimeType objects with "suffixes"
+  // properties; if this object has an associated plugin, shouldn't we check
+  // those properties for an extension?
+  get primaryExtension() {
+    try {
+      if (this.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo &&
+          this.wrappedHandlerInfo.primaryExtension)
+        return this.wrappedHandlerInfo.primaryExtension
+    } catch(ex) {}
+
+    return null;
+  },
+
+
+  //**************************************************************************//
+  // Plugin Handling
+
+  // A plugin that can handle this type, if any.
+  //
+  // Note: just because we have one doesn't mean it *will* handle the type.
+  // That depends on whether or not the type is in the list of types for which
+  // plugin handling is disabled.
+  plugin: null,
+
+  // Whether or not this type is only handled by a plugin or is also handled
+  // by some user-configured action as specified in the handler info object.
+  //
+  // Note: we can't just check if there's a handler info object for this type,
+  // because OS and user configuration is mixed up in the handler info object,
+  // so we always need to retrieve it for the OS info and can't tell whether
+  // it represents only OS-default information or user-configured information.
+  //
+  // FIXME: once handler info records are broken up into OS-provided records
+  // and user-configured records, stop using this boolean flag and simply
+  // check for the presence of a user-configured record to determine whether
+  // or not this type is only handled by a plugin.  Filed as bug 395142.
+  handledOnlyByPlugin: undefined,
+
+  get isDisabledPluginType() {
+    return this._getDisabledPluginTypes().indexOf(this.type) != -1;
+  },
+
+  _getDisabledPluginTypes: function() {
+    var types = "";
+
+    if (this._prefSvc.prefHasUserValue(PREF_DISABLED_PLUGIN_TYPES))
+      types = this._prefSvc.getCharPref(PREF_DISABLED_PLUGIN_TYPES);
+
+    // Only split if the string isn't empty so we don't end up with an array
+    // containing a single empty string.
+    if (types != "")
+      return types.split(",");
+
+    return [];
+  },
+
+  disablePluginType: function() {
+    var disabledPluginTypes = this._getDisabledPluginTypes();
+
+    if (disabledPluginTypes.indexOf(this.type) == -1)
+      disabledPluginTypes.push(this.type);
+
+    this._prefSvc.setCharPref(PREF_DISABLED_PLUGIN_TYPES,
+                              disabledPluginTypes.join(","));
+
+    // Update the category manager so existing browser windows update.
+    this._categoryMgr.deleteCategoryEntry("Goanna-Content-Viewers",
+                                          this.type,
+                                          false);
+  },
+
+  enablePluginType: function() {
+    var disabledPluginTypes = this._getDisabledPluginTypes();
+
+    var type = this.type;
+    disabledPluginTypes = disabledPluginTypes.filter(function(v) v != type);
+
+    this._prefSvc.setCharPref(PREF_DISABLED_PLUGIN_TYPES,
+                              disabledPluginTypes.join(","));
+
+    // Update the category manager so existing browser windows update.
+    this._categoryMgr.
+      addCategoryEntry("Goanna-Content-Viewers",
+                       this.type,
+                       "@mozilla.org/content/plugin/document-loader-factory;1",
+                       false,
+                       true);
+  },
+
+
+  //**************************************************************************//
+  // Storage
+
+  store: function() {
+    this._handlerSvc.store(this.wrappedHandlerInfo);
+  },
+
+
+  //**************************************************************************//
+  // Icons
+
+  get smallIcon() {
+    return this._getIcon(16);
+  },
+
+  _getIcon: function(aSize) {
+    if (this.primaryExtension)
+      return "moz-icon://goat." + this.primaryExtension + "?size=" + aSize;
+
+    if (this.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo)
+      return "moz-icon://goat?size=" + aSize + "&contentType=" + this.type;
+
+    // FIXME: consider returning some generic icon when we can't get a URL for
+    // one (for example in the case of protocol schemes).  Filed as bug 395141.
+    return null;
+  }
+
+};
+
+
+//****************************************************************************//
+// Feed Handler Info
+
+/**
+ * This object implements nsIHandlerInfo for the feed types.  It's a separate
+ * object because we currently store handling information for the feed type
+ * in a set of preferences rather than the nsIHandlerService-managed datastore.
+ * 
+ * This object inherits from HandlerInfoWrapper in order to get functionality
+ * that isn't special to the feed type.
+ * 
+ * XXX Should we inherit from HandlerInfoWrapper?  After all, we override
+ * most of that wrapper's properties and methods, and we have to dance around
+ * the fact that the wrapper expects to have a wrappedHandlerInfo, which we
+ * don't provide.
+ */
+
+function FeedHandlerInfo(aMIMEType) {
+  HandlerInfoWrapper.call(this, aMIMEType, null);
+}
+
+FeedHandlerInfo.prototype = {
+  __proto__: HandlerInfoWrapper.prototype,
+
+  //**************************************************************************//
+  // Convenience Utils
+
+  _converterSvc:
+    Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
+    getService(Ci.nsIWebContentConverterService),
+
+  _shellSvc:
+#ifdef HAVE_SHELL_SERVICE
+    getShellService(),
+#else
+    null,
+#endif
+
+
+  //**************************************************************************//
+  // nsIHandlerInfo
+
+  get description() {
+    return this.element("bundlePreferences").getString(this._appPrefLabel);
+  },
+
+  get preferredApplicationHandler() {
+    switch (this.element(this._prefSelectedReader).value) {
+      case "client":
+        var file = this.element(this._prefSelectedApp).value;
+        if (file)
+          return getLocalHandlerApp(file);
+
+        return null;
+
+      case "web":
+        var uri = this.element(this._prefSelectedWeb).value;
+        if (!uri)
+          return null;
+        return this._converterSvc.getWebContentHandlerByURI(this.type, uri);
+
+      case "bookmarks":
+      default:
+        // When the pref is set to bookmarks, we handle feeds internally,
+        // we don't forward them to a local or web handler app, so there is
+        // no preferred handler.
+        return null;
+    }
+  },
+
+  set preferredApplicationHandler(aNewValue) {
+    if (aNewValue instanceof Ci.nsILocalHandlerApp) {
+      this.element(this._prefSelectedApp).value = aNewValue.executable;
+      this.element(this._prefSelectedReader).value = "client";
+    }
+    else if (aNewValue instanceof Ci.nsIWebContentHandlerInfo) {
+      this.element(this._prefSelectedWeb).value = aNewValue.uri;
+      this.element(this._prefSelectedReader).value = "web";
+      // Make the web handler be the new "auto handler" for feeds.
+      // Note: we don't have to unregister the auto handler when the user picks
+      // a non-web handler (local app, Live Bookmarks, etc.) because the service
+      // only uses the "auto handler" when the selected reader is a web handler.
+      // We also don't have to unregister it when the user turns on "always ask"
+      // (i.e. preview in browser), since that also overrides the auto handler.
+      this._converterSvc.setAutoHandler(this.type, aNewValue);
+    }
+  },
+
+  _possibleApplicationHandlers: null,
+
+  get possibleApplicationHandlers() {
+    if (this._possibleApplicationHandlers)
+      return this._possibleApplicationHandlers;
+
+    // A minimal implementation of nsIMutableArray.  It only supports the two
+    // methods its callers invoke, namely appendElement and nsIArray::enumerate.
+    this._possibleApplicationHandlers = {
+      _inner: [],
+      _removed: [],
+
+      QueryInterface: function(aIID) {
+        if (aIID.equals(Ci.nsIMutableArray) ||
+            aIID.equals(Ci.nsIArray) ||
+            aIID.equals(Ci.nsISupports))
+          return this;
+
+        throw Cr.NS_ERROR_NO_INTERFACE;
+      },
+
+      get length() {
+        return this._inner.length;
+      },
+
+      enumerate: function() {
+        return new ArrayEnumerator(this._inner);
+      },
+
+      appendElement: function(aHandlerApp, aWeak) {
+        this._inner.push(aHandlerApp);
+      },
+
+      removeElementAt: function(aIndex) {
+        this._removed.push(this._inner[aIndex]);
+        this._inner.splice(aIndex, 1);
+      },
+
+      queryElementAt: function(aIndex, aInterface) {
+        return this._inner[aIndex].QueryInterface(aInterface);
+      }
+    };
+
+    // Add the selected local app if it's different from the OS default handler.
+    // Unlike for other types, we can store only one local app at a time for the
+    // feed type, since we store it in a preference that historically stores
+    // only a single path.  But we display all the local apps the user chooses
+    // while the prefpane is open, only dropping the list when the user closes
+    // the prefpane, for maximum usability and consistency with other types.
+    var preferredAppFile = this.element(this._prefSelectedApp).value;
+    if (preferredAppFile) {
+      let preferredApp = getLocalHandlerApp(preferredAppFile);
+      let defaultApp = this._defaultApplicationHandler;
+      if (!defaultApp || !defaultApp.equals(preferredApp))
+        this._possibleApplicationHandlers.appendElement(preferredApp, false);
+    }
+
+    // Add the registered web handlers.  There can be any number of these.
+    var webHandlers = this._converterSvc.getContentHandlers(this.type);
+    for each (let webHandler in webHandlers)
+      this._possibleApplicationHandlers.appendElement(webHandler, false);
+
+    return this._possibleApplicationHandlers;
+  },
+
+  __defaultApplicationHandler: undefined,
+  get _defaultApplicationHandler() {
+    if (typeof this.__defaultApplicationHandler != "undefined")
+      return this.__defaultApplicationHandler;
+
+    var defaultFeedReader = null;
+#ifdef HAVE_SHELL_SERVICE
+    try {
+      defaultFeedReader = this._shellSvc.defaultFeedReader;
+    }
+    catch(ex) {
+      // no default reader or _shellSvc is null
+    }
+#endif
+
+    if (defaultFeedReader) {
+      let handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
+                       createInstance(Ci.nsIHandlerApp);
+      handlerApp.name = getFileDisplayName(defaultFeedReader);
+      handlerApp.QueryInterface(Ci.nsILocalHandlerApp);
+      handlerApp.executable = defaultFeedReader;
+
+      this.__defaultApplicationHandler = handlerApp;
+    }
+    else {
+      this.__defaultApplicationHandler = null;
+    }
+
+    return this.__defaultApplicationHandler;
+  },
+
+  get hasDefaultHandler() {
+#ifdef HAVE_SHELL_SERVICE
+    try {
+      if (this._shellSvc.defaultFeedReader)
+        return true;
+    }
+    catch(ex) {
+      // no default reader or _shellSvc is null
+    }
+#endif
+
+    return false;
+  },
+
+  get defaultDescription() {
+    if (this.hasDefaultHandler)
+      return this._defaultApplicationHandler.name;
+
+    // Should we instead return null?
+    return "";
+  },
+
+  // What to do with content of this type.
+  get preferredAction() {
+    switch (this.element(this._prefSelectedAction).value) {
+
+      case "bookmarks":
+        return Ci.nsIHandlerInfo.handleInternally;
+
+      case "reader": {
+        let preferredApp = this.preferredApplicationHandler;
+        let defaultApp = this._defaultApplicationHandler;
+
+        // If we have a valid preferred app, return useSystemDefault if it's
+        // the default app; otherwise return useHelperApp.
+        if (gApplicationsPane.isValidHandlerApp(preferredApp)) {
+          if (defaultApp && defaultApp.equals(preferredApp))
+            return Ci.nsIHandlerInfo.useSystemDefault;
+
+          return Ci.nsIHandlerInfo.useHelperApp;
+        }
+
+        // The pref is set to "reader", but we don't have a valid preferred app.
+        // What do we do now?  Not sure this is the best option (perhaps we
+        // should direct the user to the default app, if any), but for now let's
+        // direct the user to live bookmarks.
+        return Ci.nsIHandlerInfo.handleInternally;
+      }
+
+      // If the action is "ask", then alwaysAskBeforeHandling will override
+      // the action, so it doesn't matter what we say it is, it just has to be
+      // something that doesn't cause the controller to hide the type.
+      case "ask":
+      default:
+        return Ci.nsIHandlerInfo.handleInternally;
+    }
+  },
+
+  set preferredAction(aNewValue) {
+    switch (aNewValue) {
+
+      case Ci.nsIHandlerInfo.handleInternally:
+        this.element(this._prefSelectedReader).value = "bookmarks";
+        break;
+
+      case Ci.nsIHandlerInfo.useHelperApp:
+        this.element(this._prefSelectedAction).value = "reader";
+        // The controller has already set preferredApplicationHandler
+        // to the new helper app.
+        break;
+
+      case Ci.nsIHandlerInfo.useSystemDefault:
+        this.element(this._prefSelectedAction).value = "reader";
+        this.preferredApplicationHandler = this._defaultApplicationHandler;
+        break;
+    }
+  },
+
+  get alwaysAskBeforeHandling() {
+    return this.element(this._prefSelectedAction).value == "ask";
+  },
+
+  set alwaysAskBeforeHandling(aNewValue) {
+    if (aNewValue == true)
+      this.element(this._prefSelectedAction).value = "ask";
+    else
+      this.element(this._prefSelectedAction).value = "reader";
+  },
+
+  // Whether or not we are currently storing the action selected by the user.
+  // We use this to suppress notification-triggered updates to the list when
+  // we make changes that may spawn such updates, specifically when we change
+  // the action for the feed type, which results in feed preference updates,
+  // which spawn "pref changed" notifications that would otherwise cause us
+  // to rebuild the view unnecessarily.
+  _storingAction: false,
+
+
+  //**************************************************************************//
+  // nsIMIMEInfo
+
+  get primaryExtension() {
+    return "xml";
+  },
+
+
+  //**************************************************************************//
+  // Storage
+
+  // Changes to the preferred action and handler take effect immediately
+  // (we write them out to the preferences right as they happen),
+  // so we when the controller calls store() after modifying the handlers,
+  // the only thing we need to store is the removal of possible handlers
+  // XXX Should we hold off on making the changes until this method gets called?
+  store: function() {
+    for each (let app in this._possibleApplicationHandlers._removed) {
+      if (app instanceof Ci.nsILocalHandlerApp) {
+        let pref = this.element(PREF_FEED_SELECTED_APP);
+        var preferredAppFile = pref.value;
+        if (preferredAppFile) {
+          let preferredApp = getLocalHandlerApp(preferredAppFile);
+          if (app.equals(preferredApp))
+            pref.reset();
+        }
+      }
+      else {
+        app.QueryInterface(Ci.nsIWebContentHandlerInfo);
+        this._converterSvc.removeContentHandler(app.contentType, app.uri);
+      }
+    }
+    this._possibleApplicationHandlers._removed = [];
+  },
+
+
+  //**************************************************************************//
+  // Icons
+
+  get smallIcon() {
+    return this._smallIcon;
+  }
+
+};
+
+var feedHandlerInfo = {
+  __proto__: new FeedHandlerInfo(TYPE_MAYBE_FEED),
+  _prefSelectedApp: PREF_FEED_SELECTED_APP, 
+  _prefSelectedWeb: PREF_FEED_SELECTED_WEB, 
+  _prefSelectedAction: PREF_FEED_SELECTED_ACTION, 
+  _prefSelectedReader: PREF_FEED_SELECTED_READER,
+  _smallIcon: "chrome://browser/skin/feeds/feedIcon16.png",
+  _appPrefLabel: "webFeed"
+}
+
+var videoFeedHandlerInfo = {
+  __proto__: new FeedHandlerInfo(TYPE_MAYBE_VIDEO_FEED),
+  _prefSelectedApp: PREF_VIDEO_FEED_SELECTED_APP, 
+  _prefSelectedWeb: PREF_VIDEO_FEED_SELECTED_WEB, 
+  _prefSelectedAction: PREF_VIDEO_FEED_SELECTED_ACTION, 
+  _prefSelectedReader: PREF_VIDEO_FEED_SELECTED_READER,
+  _smallIcon: "chrome://browser/skin/feeds/videoFeedIcon16.png",
+  _appPrefLabel: "videoPodcastFeed"
+}
+
+var audioFeedHandlerInfo = {
+  __proto__: new FeedHandlerInfo(TYPE_MAYBE_AUDIO_FEED),
+  _prefSelectedApp: PREF_AUDIO_FEED_SELECTED_APP, 
+  _prefSelectedWeb: PREF_AUDIO_FEED_SELECTED_WEB, 
+  _prefSelectedAction: PREF_AUDIO_FEED_SELECTED_ACTION, 
+  _prefSelectedReader: PREF_AUDIO_FEED_SELECTED_READER,
+  _smallIcon: "chrome://browser/skin/feeds/audioFeedIcon16.png",
+  _appPrefLabel: "audioPodcastFeed"
+}
+
+/**
+ * InternalHandlerInfoWrapper provides a basic mechanism to create an internal
+ * mime type handler that can be enabled/disabled in the applications preference
+ * menu.
+ */
+function InternalHandlerInfoWrapper(aMIMEType) {
+  var mimeSvc = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
+  var handlerInfo = mimeSvc.getFromTypeAndExtension(aMIMEType, null);
+
+  HandlerInfoWrapper.call(this, aMIMEType, handlerInfo);
+}
+
+InternalHandlerInfoWrapper.prototype = {
+  __proto__: HandlerInfoWrapper.prototype,
+
+  // Override store so we so we can notify any code listening for registration
+  // or unregistration of this handler.
+  store: function() {
+    HandlerInfoWrapper.prototype.store.call(this);
+    Services.obs.notifyObservers(null, this._handlerChanged, null);
+  },
+
+  get enabled() {
+    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+  },
+
+  get description() {
+    return this.element("bundlePreferences").getString(this._appPrefLabel);
+  }
+};
+
+//****************************************************************************//
+// Prefpane Controller
+
+var gApplicationsPane = {
+  // The set of types the app knows how to handle.  A hash of HandlerInfoWrapper
+  // objects, indexed by type.
+  _handledTypes: {},
+  
+  // The list of types we can show, sorted by the sort column/direction.
+  // An array of HandlerInfoWrapper objects.  We build this list when we first
+  // load the data and then rebuild it when users change a pref that affects
+  // what types we can show or change the sort column/direction.
+  // Note: this isn't necessarily the list of types we *will* show; if the user
+  // provides a filter string, we'll only show the subset of types in this list
+  // that match that string.
+  _visibleTypes: [],
+
+  // A count of the number of times each visible type description appears.
+  // We use these counts to determine whether or not to annotate descriptions
+  // with their types to distinguish duplicate descriptions from each other.
+  // A hash of integer counts, indexed by string description.
+  _visibleTypeDescriptionCount: {},
+
+
+  //**************************************************************************//
+  // Convenience & Performance Shortcuts
+
+  // These get defined by init().
+  _brandShortName : null,
+  _prefsBundle    : null,
+  _list           : null,
+  _filter         : null,
+
+  _prefSvc      : Cc["@mozilla.org/preferences-service;1"].
+                  getService(Ci.nsIPrefBranch),
+
+  _mimeSvc      : Cc["@mozilla.org/mime;1"].
+                  getService(Ci.nsIMIMEService),
+
+  _helperAppSvc : Cc["@mozilla.org/uriloader/external-helper-app-service;1"].
+                  getService(Ci.nsIExternalHelperAppService),
+
+  _handlerSvc   : Cc["@mozilla.org/uriloader/handler-service;1"].
+                  getService(Ci.nsIHandlerService),
+
+  _ioSvc        : Cc["@mozilla.org/network/io-service;1"].
+                  getService(Ci.nsIIOService),
+
+
+  //**************************************************************************//
+  // Initialization & Destruction
+
+  init: function() {
+    // Initialize shortcuts to some commonly accessed elements & values.
+    this._brandShortName =
+      document.getElementById("bundleBrand").getString("brandShortName");
+    this._prefsBundle = document.getElementById("bundlePreferences");
+    this._list = document.getElementById("handlersView");
+    this._filter = document.getElementById("filter");
+
+    // Observe preferences that influence what we display so we can rebuild
+    // the view when they change.
+    this._prefSvc.addObserver(PREF_SHOW_PLUGINS_IN_LIST, this, false);
+    this._prefSvc.addObserver(PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS, this, false);
+    this._prefSvc.addObserver(PREF_FEED_SELECTED_APP, this, false);
+    this._prefSvc.addObserver(PREF_FEED_SELECTED_WEB, this, false);
+    this._prefSvc.addObserver(PREF_FEED_SELECTED_ACTION, this, false);
+    this._prefSvc.addObserver(PREF_FEED_SELECTED_READER, this, false);
+
+    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_APP, this, false);
+    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_WEB, this, false);
+    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_ACTION, this, false);
+    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_READER, this, false);
+
+    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_APP, this, false);
+    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_WEB, this, false);
+    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_ACTION, this, false);
+    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_READER, this, false);
+
+
+    // Listen for window unload so we can remove our preference observers.
+    window.addEventListener("unload", this, false);
+
+    // Figure out how we should be sorting the list.  We persist sort settings
+    // across sessions, so we can't assume the default sort column/direction.
+    // XXX should we be using the XUL sort service instead?
+    if (document.getElementById("actionColumn").hasAttribute("sortDirection")) {
+      this._sortColumn = document.getElementById("actionColumn");
+      // The typeColumn element always has a sortDirection attribute,
+      // either because it was persisted or because the default value
+      // from the xul file was used.  If we are sorting on the other
+      // column, we should remove it.
+      document.getElementById("typeColumn").removeAttribute("sortDirection");
+    }
+    else 
+      this._sortColumn = document.getElementById("typeColumn");
+
+    // Load the data and build the list of handlers.
+    // By doing this in a timeout, we let the preferences dialog resize itself
+    // to an appropriate size before we add a bunch of items to the list.
+    // Otherwise, if there are many items, and the Applications prefpane
+    // is the one that gets displayed when the user first opens the dialog,
+    // the dialog might stretch too much in an attempt to fit them all in.
+    // XXX Shouldn't we perhaps just set a max-height on the richlistbox?
+    var _delayedPaneLoad = function(self) {
+      self._loadData();
+      self._rebuildVisibleTypes();
+      self._sortVisibleTypes();
+      self._rebuildView();
+
+      // Notify observers that the UI is now ready
+      Cc["@mozilla.org/observer-service;1"].getService(Ci.nsIObserverService).
+      notifyObservers(window, "app-handler-pane-loaded", null);
+    }
+    setTimeout(_delayedPaneLoad, 0, this);
+  },
+
+  destroy: function() {
+    window.removeEventListener("unload", this, false);
+    this._prefSvc.removeObserver(PREF_SHOW_PLUGINS_IN_LIST, this);
+    this._prefSvc.removeObserver(PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS, this);
+    this._prefSvc.removeObserver(PREF_FEED_SELECTED_APP, this);
+    this._prefSvc.removeObserver(PREF_FEED_SELECTED_WEB, this);
+    this._prefSvc.removeObserver(PREF_FEED_SELECTED_ACTION, this);
+    this._prefSvc.removeObserver(PREF_FEED_SELECTED_READER, this);
+
+    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_APP, this);
+    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_WEB, this);
+    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_ACTION, this);
+    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_READER, this);
+
+    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_APP, this);
+    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_WEB, this);
+    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_ACTION, this);
+    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_READER, this);
+  },
+
+
+  //**************************************************************************//
+  // nsISupports
+
+  QueryInterface: function(aIID) {
+    if (aIID.equals(Ci.nsIObserver) ||
+        aIID.equals(Ci.nsIDOMEventListener ||
+        aIID.equals(Ci.nsISupports)))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  },
+
+
+  //**************************************************************************//
+  // nsIObserver
+
+  observe: function (aSubject, aTopic, aData) {
+    // Rebuild the list when there are changes to preferences that influence
+    // whether or not to show certain entries in the list.
+    if (aTopic == "nsPref:changed" && !this._storingAction) {
+      // These two prefs alter the list of visible types, so we have to rebuild
+      // that list when they change.
+      if (aData == PREF_SHOW_PLUGINS_IN_LIST ||
+          aData == PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS) {
+        this._rebuildVisibleTypes();
+        this._sortVisibleTypes();
+      }
+
+      // All the prefs we observe can affect what we display, so we rebuild
+      // the view when any of them changes.
+      this._rebuildView();
+    }
+  },
+
+
+  //**************************************************************************//
+  // nsIDOMEventListener
+
+  handleEvent: function(aEvent) {
+    if (aEvent.type == "unload") {
+      this.destroy();
+    }
+  },
+
+
+  //**************************************************************************//
+  // Composed Model Construction
+
+  _loadData: function() {
+    this._loadFeedHandler();
+    this._loadPluginHandlers();
+    this._loadApplicationHandlers();
+  },
+
+  _loadFeedHandler: function() {
+    this._handledTypes[TYPE_MAYBE_FEED] = feedHandlerInfo;
+    feedHandlerInfo.handledOnlyByPlugin = false;
+
+    this._handledTypes[TYPE_MAYBE_VIDEO_FEED] = videoFeedHandlerInfo;
+    videoFeedHandlerInfo.handledOnlyByPlugin = false;
+
+    this._handledTypes[TYPE_MAYBE_AUDIO_FEED] = audioFeedHandlerInfo;
+    audioFeedHandlerInfo.handledOnlyByPlugin = false;
+  },
+
+  /**
+   * Load the set of handlers defined by plugins.
+   *
+   * Note: if there's more than one plugin for a given MIME type, we assume
+   * the last one is the one that the application will use.  That may not be
+   * correct, but it's how we've been doing it for years.
+   *
+   * Perhaps we should instead query navigator.mimeTypes for the set of types
+   * supported by the application and then get the plugin from each MIME type's
+   * enabledPlugin property.  But if there's a plugin for a type, we need
+   * to know about it even if it isn't enabled, since we're going to give
+   * the user an option to enable it.
+   *
+   * Also note that enabledPlugin does not get updated when
+   * plugin.disable_full_page_plugin_for_types changes, so even if we could use
+   * enabledPlugin to get the plugin that would be used, we'd still need to
+   * check the pref ourselves to find out if it's enabled.
+   */
+  _loadPluginHandlers: function() {
+    "use strict";
+
+    let mimeTypes = navigator.mimeTypes;
+
+    for (let mimeType of mimeTypes) {
+      let handlerInfoWrapper;
+      if (mimeType.type in this._handledTypes) {
+        handlerInfoWrapper = this._handledTypes[mimeType.type];
+      } else {
+        let wrappedHandlerInfo =
+              this._mimeSvc.getFromTypeAndExtension(mimeType.type, null);
+        handlerInfoWrapper = new HandlerInfoWrapper(mimeType.type, wrappedHandlerInfo);
+        handlerInfoWrapper.handledOnlyByPlugin = true;
+        this._handledTypes[mimeType.type] = handlerInfoWrapper;
+      }
+      handlerInfoWrapper.pluginName = mimeType.enabledPlugin.name;
+    }
+  },
+
+  /**
+   * Load the set of handlers defined by the application datastore.
+   */
+  _loadApplicationHandlers: function() {
+    var wrappedHandlerInfos = this._handlerSvc.enumerate();
+    while (wrappedHandlerInfos.hasMoreElements()) {
+      let wrappedHandlerInfo =
+        wrappedHandlerInfos.getNext().QueryInterface(Ci.nsIHandlerInfo);
+      let type = wrappedHandlerInfo.type;
+
+      let handlerInfoWrapper;
+      if (type in this._handledTypes)
+        handlerInfoWrapper = this._handledTypes[type];
+      else {
+        handlerInfoWrapper = new HandlerInfoWrapper(type, wrappedHandlerInfo);
+        this._handledTypes[type] = handlerInfoWrapper;
+      }
+
+      handlerInfoWrapper.handledOnlyByPlugin = false;
+    }
+  },
+
+
+  //**************************************************************************//
+  // View Construction
+
+  _rebuildVisibleTypes: function() {
+    // Reset the list of visible types and the visible type description counts.
+    this._visibleTypes = [];
+    this._visibleTypeDescriptionCount = {};
+
+    // Get the preferences that help determine what types to show.
+    var showPlugins = this._prefSvc.getBoolPref(PREF_SHOW_PLUGINS_IN_LIST);
+    var hidePluginsWithoutExtensions =
+      this._prefSvc.getBoolPref(PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS);
+
+    for (let type in this._handledTypes) {
+      let handlerInfo = this._handledTypes[type];
+
+      // Hide plugins without associated extensions if so prefed so we don't
+      // show a whole bunch of obscure types handled by plugins on Mac.
+      // Note: though protocol types don't have extensions, we still show them;
+      // the pref is only meant to be applied to MIME types, since plugins are
+      // only associated with MIME types.
+      // FIXME: should we also check the "suffixes" property of the plugin?
+      // Filed as bug 395135.
+      if (hidePluginsWithoutExtensions && handlerInfo.handledOnlyByPlugin &&
+          handlerInfo.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo &&
+          !handlerInfo.primaryExtension)
+        continue;
+
+      // Hide types handled only by plugins if so prefed.
+      if (handlerInfo.handledOnlyByPlugin && !showPlugins)
+        continue;
+
+      // We couldn't find any reason to exclude the type, so include it.
+      this._visibleTypes.push(handlerInfo);
+
+      if (handlerInfo.description in this._visibleTypeDescriptionCount)
+        this._visibleTypeDescriptionCount[handlerInfo.description]++;
+      else
+        this._visibleTypeDescriptionCount[handlerInfo.description] = 1;
+    }
+  },
+
+  _rebuildView: function() {
+    // Clear the list of entries.
+    while (this._list.childNodes.length > 1)
+      this._list.removeChild(this._list.lastChild);
+
+    var visibleTypes = this._visibleTypes;
+
+    // If the user is filtering the list, then only show matching types.
+    if (this._filter.value)
+      visibleTypes = visibleTypes.filter(this._matchesFilter, this);
+
+    for each (let visibleType in visibleTypes) {
+      let item = document.createElement("richlistitem");
+      item.setAttribute("type", visibleType.type);
+      item.setAttribute("typeDescription", this._describeType(visibleType));
+      if (visibleType.smallIcon)
+        item.setAttribute("typeIcon", visibleType.smallIcon);
+      item.setAttribute("actionDescription",
+                        this._describePreferredAction(visibleType));
+
+      if (!this._setIconClassForPreferredAction(visibleType, item)) {
+        item.setAttribute("actionIcon",
+                          this._getIconURLForPreferredAction(visibleType));
+      }
+
+      this._list.appendChild(item);
+    }
+
+    this._selectLastSelectedType();
+  },
+
+  _matchesFilter: function(aType) {
+    var filterValue = this._filter.value.toLowerCase();
+    return this._describeType(aType).toLowerCase().indexOf(filterValue) != -1 ||
+           this._describePreferredAction(aType).toLowerCase().indexOf(filterValue) != -1;
+  },
+
+  /**
+   * Describe, in a human-readable fashion, the type represented by the given
+   * handler info object.  Normally this is just the description provided by
+   * the info object, but if more than one object presents the same description,
+   * then we annotate the duplicate descriptions with the type itself to help
+   * users distinguish between those types.
+   *
+   * @param aHandlerInfo {nsIHandlerInfo} the type being described
+   * @returns {string} a description of the type
+   */
+  _describeType: function(aHandlerInfo) {
+    if (this._visibleTypeDescriptionCount[aHandlerInfo.description] > 1)
+      return this._prefsBundle.getFormattedString("typeDescriptionWithType",
+                                                  [aHandlerInfo.description,
+                                                   aHandlerInfo.type]);
+
+    return aHandlerInfo.description;
+  },
+
+  /**
+   * Describe, in a human-readable fashion, the preferred action to take on
+   * the type represented by the given handler info object.
+   *
+   * XXX Should this be part of the HandlerInfoWrapper interface?  It would
+   * violate the separation of model and view, but it might make more sense
+   * nonetheless (f.e. it would make sortTypes easier).
+   *
+   * @param aHandlerInfo {nsIHandlerInfo} the type whose preferred action
+   *                                      is being described
+   * @returns {string} a description of the action
+   */
+  _describePreferredAction: function(aHandlerInfo) {
+    // alwaysAskBeforeHandling overrides the preferred action, so if that flag
+    // is set, then describe that behavior instead.  For most types, this is
+    // the "alwaysAsk" string, but for the feed type we show something special.
+    if (aHandlerInfo.alwaysAskBeforeHandling) {
+      if (isFeedType(aHandlerInfo.type))
+        return this._prefsBundle.getFormattedString("previewInApp",
+                                                    [this._brandShortName]);
+      else
+        return this._prefsBundle.getString("alwaysAsk");
+    }
+
+    switch (aHandlerInfo.preferredAction) {
+      case Ci.nsIHandlerInfo.saveToDisk:
+        return this._prefsBundle.getString("saveFile");
+
+      case Ci.nsIHandlerInfo.useHelperApp:
+        var preferredApp = aHandlerInfo.preferredApplicationHandler;
+        var name;
+        if (preferredApp instanceof Ci.nsILocalHandlerApp)
+          name = getFileDisplayName(preferredApp.executable);
+        else
+          name = preferredApp.name;
+        return this._prefsBundle.getFormattedString("useApp", [name]);
+
+      case Ci.nsIHandlerInfo.handleInternally:
+        // For the feed type, handleInternally means live bookmarks.
+        if (isFeedType(aHandlerInfo.type)) {
+          return this._prefsBundle.getFormattedString("addLiveBookmarksInApp",
+                                                      [this._brandShortName]);
+        }
+
+        if (aHandlerInfo instanceof InternalHandlerInfoWrapper) {
+          return this._prefsBundle.getFormattedString("previewInApp",
+                                                      [this._brandShortName]);
+        }
+
+        // For other types, handleInternally looks like either useHelperApp
+        // or useSystemDefault depending on whether or not there's a preferred
+        // handler app.
+        if (this.isValidHandlerApp(aHandlerInfo.preferredApplicationHandler))
+          return aHandlerInfo.preferredApplicationHandler.name;
+
+        return aHandlerInfo.defaultDescription;
+
+        // XXX Why don't we say the app will handle the type internally?
+        // Is it because the app can't actually do that?  But if that's true,
+        // then why would a preferredAction ever get set to this value
+        // in the first place?
+
+      case Ci.nsIHandlerInfo.useSystemDefault:
+        return this._prefsBundle.getFormattedString("useDefault",
+                                                    [aHandlerInfo.defaultDescription]);
+
+      case kActionUsePlugin:
+        return this._prefsBundle.getFormattedString("usePluginIn",
+                                                    [aHandlerInfo.pluginName,
+                                                     this._brandShortName]);
+    }
+  },
+
+  _selectLastSelectedType: function() {
+    // If the list is disabled by the pref.downloads.disable_button.edit_actions
+    // preference being locked, then don't select the type, as that would cause
+    // it to appear selected, with a different background and an actions menu
+    // that makes it seem like you can choose an action for the type.
+    if (this._list.disabled)
+      return;
+
+    var lastSelectedType = this._list.getAttribute("lastSelectedType");
+    if (!lastSelectedType)
+      return;
+
+    var item = this._list.getElementsByAttribute("type", lastSelectedType)[0];
+    if (!item)
+      return;
+
+    this._list.selectedItem = item;
+  },
+
+  /**
+   * Whether or not the given handler app is valid.
+   *
+   * @param aHandlerApp {nsIHandlerApp} the handler app in question
+   *
+   * @returns {boolean} whether or not it's valid
+   */
+  isValidHandlerApp: function(aHandlerApp) {
+    if (!aHandlerApp)
+      return false;
+
+    if (aHandlerApp instanceof Ci.nsILocalHandlerApp)
+      return this._isValidHandlerExecutable(aHandlerApp.executable);
+
+    if (aHandlerApp instanceof Ci.nsIWebHandlerApp)
+      return aHandlerApp.uriTemplate;
+
+    if (aHandlerApp instanceof Ci.nsIWebContentHandlerInfo)
+      return aHandlerApp.uri;
+
+    return false;
+  },
+
+  _isValidHandlerExecutable: function(aExecutable) {
+    return aExecutable &&
+           aExecutable.exists() &&
+           aExecutable.isExecutable() &&
+// XXXben - we need to compare this with the running instance executable
+//          just don't know how to do that via script...
+// XXXmano TBD: can probably add this to nsIShellService
+#ifdef XP_WIN
+#expand    aExecutable.leafName != "__MOZ_APP_NAME__.exe";
+#else
+#ifdef XP_MACOSX
+#expand    aExecutable.leafName != "__MOZ_MACBUNDLE_NAME__";
+#else
+#expand    aExecutable.leafName != "__MOZ_APP_NAME__-bin";
+#endif
+#endif
+  },
+
+  /**
+   * Rebuild the actions menu for the selected entry.  Gets called by
+   * the richlistitem constructor when an entry in the list gets selected.
+   */
+  rebuildActionsMenu: function() {
+    var typeItem = this._list.selectedItem;
+    var handlerInfo = this._handledTypes[typeItem.type];
+    var menu =
+      document.getAnonymousElementByAttribute(typeItem, "class", "actionsMenu");
+    var menuPopup = menu.menupopup;
+
+    // Clear out existing items.
+    while (menuPopup.hasChildNodes())
+      menuPopup.removeChild(menuPopup.lastChild);
+
+    // Add the "Preview in Firefox" option for optional internal handlers.
+    if (handlerInfo instanceof InternalHandlerInfoWrapper) {
+      var internalMenuItem = document.createElement("menuitem");
+      internalMenuItem.setAttribute("action", Ci.nsIHandlerInfo.handleInternally);
+      let label = this._prefsBundle.getFormattedString("previewInApp",
+                                                       [this._brandShortName]);
+      internalMenuItem.setAttribute("label", label);
+      internalMenuItem.setAttribute("tooltiptext", label);
+      internalMenuItem.setAttribute(APP_ICON_ATTR_NAME, "ask");
+      menuPopup.appendChild(internalMenuItem);
+    }
+
+    {
+      var askMenuItem = document.createElement("menuitem");
+      askMenuItem.setAttribute("action", Ci.nsIHandlerInfo.alwaysAsk);
+      let label;
+      if (isFeedType(handlerInfo.type))
+        label = this._prefsBundle.getFormattedString("previewInApp",
+                                                     [this._brandShortName]);
+      else
+        label = this._prefsBundle.getString("alwaysAsk");
+      askMenuItem.setAttribute("label", label);
+      askMenuItem.setAttribute("tooltiptext", label);
+      askMenuItem.setAttribute(APP_ICON_ATTR_NAME, "ask");
+      menuPopup.appendChild(askMenuItem);
+    }
+
+    // Create a menu item for saving to disk.
+    // Note: this option isn't available to protocol types, since we don't know
+    // what it means to save a URL having a certain scheme to disk, nor is it
+    // available to feeds, since the feed code doesn't implement the capability.
+    if ((handlerInfo.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo) &&
+        !isFeedType(handlerInfo.type)) {
+      var saveMenuItem = document.createElement("menuitem");
+      saveMenuItem.setAttribute("action", Ci.nsIHandlerInfo.saveToDisk);
+      let label = this._prefsBundle.getString("saveFile");
+      saveMenuItem.setAttribute("label", label);
+      saveMenuItem.setAttribute("tooltiptext", label);
+      saveMenuItem.setAttribute(APP_ICON_ATTR_NAME, "save");
+      menuPopup.appendChild(saveMenuItem);
+    }
+
+    // If this is the feed type, add a Live Bookmarks item.
+    if (isFeedType(handlerInfo.type)) {
+      var internalMenuItem = document.createElement("menuitem");
+      internalMenuItem.setAttribute("action", Ci.nsIHandlerInfo.handleInternally);
+      let label = this._prefsBundle.getFormattedString("addLiveBookmarksInApp",
+                                                       [this._brandShortName]);
+      internalMenuItem.setAttribute("label", label);
+      internalMenuItem.setAttribute("tooltiptext", label);
+      internalMenuItem.setAttribute(APP_ICON_ATTR_NAME, "feed");
+      menuPopup.appendChild(internalMenuItem);
+    }
+
+    // Add a separator to distinguish these items from the helper app items
+    // that follow them.
+    let menuItem = document.createElement("menuseparator");
+    menuPopup.appendChild(menuItem);
+
+    // Create a menu item for the OS default application, if any.
+    if (handlerInfo.hasDefaultHandler) {
+      var defaultMenuItem = document.createElement("menuitem");
+      defaultMenuItem.setAttribute("action", Ci.nsIHandlerInfo.useSystemDefault);
+      let label = this._prefsBundle.getFormattedString("useDefault",
+                                                       [handlerInfo.defaultDescription]);
+      defaultMenuItem.setAttribute("label", label);
+      defaultMenuItem.setAttribute("tooltiptext", handlerInfo.defaultDescription);
+      defaultMenuItem.setAttribute("image", this._getIconURLForSystemDefault(handlerInfo));
+
+      menuPopup.appendChild(defaultMenuItem);
+    }
+
+    // Create menu items for possible handlers.
+    let preferredApp = handlerInfo.preferredApplicationHandler;
+    let possibleApps = handlerInfo.possibleApplicationHandlers.enumerate();
+    var possibleAppMenuItems = [];
+    while (possibleApps.hasMoreElements()) {
+      let possibleApp = possibleApps.getNext();
+      if (!this.isValidHandlerApp(possibleApp))
+        continue;
+
+      let menuItem = document.createElement("menuitem");
+      menuItem.setAttribute("action", Ci.nsIHandlerInfo.useHelperApp);
+      let label;
+      if (possibleApp instanceof Ci.nsILocalHandlerApp)
+        label = getFileDisplayName(possibleApp.executable);
+      else
+        label = possibleApp.name;
+      label = this._prefsBundle.getFormattedString("useApp", [label]);
+      menuItem.setAttribute("label", label);
+      menuItem.setAttribute("tooltiptext", label);
+      menuItem.setAttribute("image", this._getIconURLForHandlerApp(possibleApp));
+
+      // Attach the handler app object to the menu item so we can use it
+      // to make changes to the datastore when the user selects the item.
+      menuItem.handlerApp = possibleApp;
+
+      menuPopup.appendChild(menuItem);
+      possibleAppMenuItems.push(menuItem);
+    }
+
+    // Create a menu item for the plugin.
+    if (handlerInfo.pluginName) {
+      var pluginMenuItem = document.createElement("menuitem");
+      pluginMenuItem.setAttribute("action", kActionUsePlugin);
+      let label = this._prefsBundle.getFormattedString("usePluginIn",
+                                                       [handlerInfo.pluginName,
+                                                        this._brandShortName]);
+      pluginMenuItem.setAttribute("label", label);
+      pluginMenuItem.setAttribute("tooltiptext", label);
+      pluginMenuItem.setAttribute(APP_ICON_ATTR_NAME, "plugin");
+      menuPopup.appendChild(pluginMenuItem);
+    }
+
+    // Create a menu item for selecting a local application.
+#ifdef XP_WIN
+    // On Windows, selecting an application to open another application
+    // would be meaningless so we special case executables.
+    var executableType = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService)
+                                                  .getTypeFromExtension("exe");
+    if (handlerInfo.type != executableType)
+#endif
+    {
+      let menuItem = document.createElement("menuitem");
+      menuItem.setAttribute("oncommand", "gApplicationsPane.chooseApp(event)");
+      let label = this._prefsBundle.getString("useOtherApp");
+      menuItem.setAttribute("label", label);
+      menuItem.setAttribute("tooltiptext", label);
+      menuPopup.appendChild(menuItem);
+    }
+
+    // Create a menu item for managing applications.
+    if (possibleAppMenuItems.length) {
+      let menuItem = document.createElement("menuseparator");
+      menuPopup.appendChild(menuItem);
+      menuItem = document.createElement("menuitem");
+      menuItem.setAttribute("oncommand", "gApplicationsPane.manageApp(event)");
+      menuItem.setAttribute("label", this._prefsBundle.getString("manageApp"));
+      menuPopup.appendChild(menuItem);
+    }
+
+    // Select the item corresponding to the preferred action.  If the always
+    // ask flag is set, it overrides the preferred action.  Otherwise we pick
+    // the item identified by the preferred action (when the preferred action
+    // is to use a helper app, we have to pick the specific helper app item).
+    if (handlerInfo.alwaysAskBeforeHandling)
+      menu.selectedItem = askMenuItem;
+    else switch (handlerInfo.preferredAction) {
+      case Ci.nsIHandlerInfo.handleInternally:
+        menu.selectedItem = internalMenuItem;
+        break;
+      case Ci.nsIHandlerInfo.useSystemDefault:
+        menu.selectedItem = defaultMenuItem;
+        break;
+      case Ci.nsIHandlerInfo.useHelperApp:
+        if (preferredApp)
+          menu.selectedItem = 
+            possibleAppMenuItems.filter(function(v) v.handlerApp.equals(preferredApp))[0];
+        break;
+      case kActionUsePlugin:
+        menu.selectedItem = pluginMenuItem;
+        break;
+      case Ci.nsIHandlerInfo.saveToDisk:
+        menu.selectedItem = saveMenuItem;
+        break;
+    }
+  },
+
+
+  //**************************************************************************//
+  // Sorting & Filtering
+
+  _sortColumn: null,
+
+  /**
+   * Sort the list when the user clicks on a column header.
+   */
+  sort: function (event) {
+    var column = event.target;
+
+    // If the user clicked on a new sort column, remove the direction indicator
+    // from the old column.
+    if (this._sortColumn && this._sortColumn != column)
+      this._sortColumn.removeAttribute("sortDirection");
+
+    this._sortColumn = column;
+
+    // Set (or switch) the sort direction indicator.
+    if (column.getAttribute("sortDirection") == "ascending")
+      column.setAttribute("sortDirection", "descending");
+    else
+      column.setAttribute("sortDirection", "ascending");
+
+    this._sortVisibleTypes();
+    this._rebuildView();
+  },
+
+  /**
+   * Sort the list of visible types by the current sort column/direction.
+   */
+  _sortVisibleTypes: function() {
+    if (!this._sortColumn)
+      return;
+
+    var t = this;
+
+    function sortByType(a, b) {
+      return t._describeType(a).toLowerCase().
+             localeCompare(t._describeType(b).toLowerCase());
+    }
+
+    function sortByAction(a, b) {
+      return t._describePreferredAction(a).toLowerCase().
+             localeCompare(t._describePreferredAction(b).toLowerCase());
+    }
+
+    switch (this._sortColumn.getAttribute("value")) {
+      case "type":
+        this._visibleTypes.sort(sortByType);
+        break;
+      case "action":
+        this._visibleTypes.sort(sortByAction);
+        break;
+    }
+
+    if (this._sortColumn.getAttribute("sortDirection") == "descending")
+      this._visibleTypes.reverse();
+  },
+
+  /**
+   * Filter the list when the user enters a filter term into the filter field.
+   */
+  filter: function() {
+    this._rebuildView();
+  },
+
+  focusFilterBox: function() {
+    this._filter.focus();
+    this._filter.select();
+  },
+
+
+  //**************************************************************************//
+  // Changes
+
+  onSelectAction: function(aActionItem) {
+    this._storingAction = true;
+
+    try {
+      this._storeAction(aActionItem);
+    }
+    finally {
+      this._storingAction = false;
+    }
+  },
+
+  _storeAction: function(aActionItem) {
+    var typeItem = this._list.selectedItem;
+    var handlerInfo = this._handledTypes[typeItem.type];
+
+    let action = parseInt(aActionItem.getAttribute("action"));
+
+    // Set the plugin state if we're enabling or disabling a plugin.
+    if (action == kActionUsePlugin)
+      handlerInfo.enablePluginType();
+    else if (handlerInfo.pluginName && !handlerInfo.isDisabledPluginType)
+      handlerInfo.disablePluginType();
+
+    // Set the preferred application handler.
+    // We leave the existing preferred app in the list when we set
+    // the preferred action to something other than useHelperApp so that
+    // legacy datastores that don't have the preferred app in the list
+    // of possible apps still include the preferred app in the list of apps
+    // the user can choose to handle the type.
+    if (action == Ci.nsIHandlerInfo.useHelperApp)
+      handlerInfo.preferredApplicationHandler = aActionItem.handlerApp;
+
+    // Set the "always ask" flag.
+    if (action == Ci.nsIHandlerInfo.alwaysAsk)
+      handlerInfo.alwaysAskBeforeHandling = true;
+    else
+      handlerInfo.alwaysAskBeforeHandling = false;
+
+    // Set the preferred action.
+    handlerInfo.preferredAction = action;
+
+    handlerInfo.store();
+
+    // Make sure the handler info object is flagged to indicate that there is
+    // now some user configuration for the type.
+    handlerInfo.handledOnlyByPlugin = false;
+
+    // Update the action label and image to reflect the new preferred action.
+    typeItem.setAttribute("actionDescription",
+                          this._describePreferredAction(handlerInfo));
+    if (!this._setIconClassForPreferredAction(handlerInfo, typeItem)) {
+      typeItem.setAttribute("actionIcon",
+                            this._getIconURLForPreferredAction(handlerInfo));
+    }
+  },
+
+  manageApp: function(aEvent) {
+    // Don't let the normal "on select action" handler get this event,
+    // as we handle it specially ourselves.
+    aEvent.stopPropagation();
+
+    var typeItem = this._list.selectedItem;
+    var handlerInfo = this._handledTypes[typeItem.type];
+
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/applicationManager.xul",
+                                           "", handlerInfo);
+
+    // Rebuild the actions menu so that we revert to the previous selection,
+    // or "Always ask" if the previous default application has been removed
+    this.rebuildActionsMenu();
+
+    // update the richlistitem too. Will be visible when selecting another row
+    typeItem.setAttribute("actionDescription",
+                          this._describePreferredAction(handlerInfo));
+    if (!this._setIconClassForPreferredAction(handlerInfo, typeItem)) {
+      typeItem.setAttribute("actionIcon",
+                            this._getIconURLForPreferredAction(handlerInfo));
+    }
+  },
+
+  chooseApp: function(aEvent) {
+    // Don't let the normal "on select action" handler get this event,
+    // as we handle it specially ourselves.
+    aEvent.stopPropagation();
+
+    var handlerApp;
+    let chooseAppCallback = function(aHandlerApp) {
+      // Rebuild the actions menu whether the user picked an app or canceled.
+      // If they picked an app, we want to add the app to the menu and select it.
+      // If they canceled, we want to go back to their previous selection.
+      this.rebuildActionsMenu();
+
+      // If the user picked a new app from the menu, select it.
+      if (aHandlerApp) {
+        let typeItem = this._list.selectedItem;
+        let actionsMenu =
+          document.getAnonymousElementByAttribute(typeItem, "class", "actionsMenu");
+        let menuItems = actionsMenu.menupopup.childNodes;
+        for (let i = 0; i < menuItems.length; i++) {
+          let menuItem = menuItems[i];
+          if (menuItem.handlerApp && menuItem.handlerApp.equals(aHandlerApp)) {
+            actionsMenu.selectedIndex = i;
+            this.onSelectAction(menuItem);
+            break;
+          }
+        }
+      }
+    }.bind(this);
+
+#ifdef XP_WIN
+    var params = {};
+    var handlerInfo = this._handledTypes[this._list.selectedItem.type];
+
+    if (isFeedType(handlerInfo.type)) {
+      // MIME info will be null, create a temp object.
+      params.mimeInfo = this._mimeSvc.getFromTypeAndExtension(handlerInfo.type, 
+                                                 handlerInfo.primaryExtension);
+    } else {
+      params.mimeInfo = handlerInfo.wrappedHandlerInfo;
+    }
+
+    params.title         = this._prefsBundle.getString("fpTitleChooseApp");
+    params.description   = handlerInfo.description;
+    params.filename      = null;
+    params.handlerApp    = null;
+
+    window.openDialog("chrome://global/content/appPicker.xul", null,
+                      "chrome,modal,centerscreen,titlebar,dialog=yes",
+                      params);
+
+    if (this.isValidHandlerApp(params.handlerApp)) {
+      handlerApp = params.handlerApp;
+
+      // Add the app to the type's list of possible handlers.
+      handlerInfo.addPossibleApplicationHandler(handlerApp);
+    }
+
+    chooseAppCallback(handlerApp);
+#else
+    let winTitle = this._prefsBundle.getString("fpTitleChooseApp");
+    let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
+    let fpCallback = function fpCallback_done(aResult) {
+      if (aResult == Ci.nsIFilePicker.returnOK && fp.file &&
+          this._isValidHandlerExecutable(fp.file)) {
+        handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
+                     createInstance(Ci.nsILocalHandlerApp);
+        handlerApp.name = getFileDisplayName(fp.file);
+        handlerApp.executable = fp.file;
+
+        // Add the app to the type's list of possible handlers.
+        let handlerInfo = this._handledTypes[this._list.selectedItem.type];
+        handlerInfo.addPossibleApplicationHandler(handlerApp);
+
+        chooseAppCallback(handlerApp);
+      }
+    }.bind(this);
+
+    // Prompt the user to pick an app.  If they pick one, and it's a valid
+    // selection, then add it to the list of possible handlers.
+    fp.init(window, winTitle, Ci.nsIFilePicker.modeOpen);
+    fp.appendFilters(Ci.nsIFilePicker.filterApps);
+    fp.open(fpCallback);
+#endif
+  },
+
+  // Mark which item in the list was last selected so we can reselect it
+  // when we rebuild the list or when the user returns to the prefpane.
+  onSelectionChanged: function() {
+    if (this._list.selectedItem)
+      this._list.setAttribute("lastSelectedType",
+                              this._list.selectedItem.getAttribute("type"));
+  },
+
+  _setIconClassForPreferredAction: function(aHandlerInfo, aElement) {
+    // If this returns true, the attribute that CSS sniffs for was set to something
+    // so you shouldn't manually set an icon URI.
+    // This removes the existing actionIcon attribute if any, even if returning false.
+    aElement.removeAttribute("actionIcon");
+
+    if (aHandlerInfo.alwaysAskBeforeHandling) {
+      aElement.setAttribute(APP_ICON_ATTR_NAME, "ask");
+      return true;
+    }
+
+    switch (aHandlerInfo.preferredAction) {
+      case Ci.nsIHandlerInfo.saveToDisk:
+        aElement.setAttribute(APP_ICON_ATTR_NAME, "save");
+        return true;
+
+      case Ci.nsIHandlerInfo.handleInternally:
+        if (isFeedType(aHandlerInfo.type)) {
+          aElement.setAttribute(APP_ICON_ATTR_NAME, "feed");
+          return true;
+        } else if (aHandlerInfo instanceof InternalHandlerInfoWrapper) {
+          aElement.setAttribute(APP_ICON_ATTR_NAME, "ask");
+          return true;
+        }
+        break;
+
+      case kActionUsePlugin:
+        aElement.setAttribute(APP_ICON_ATTR_NAME, "plugin");
+        return true;
+    }
+    aElement.removeAttribute(APP_ICON_ATTR_NAME);
+    return false;
+  },
+
+  _getIconURLForPreferredAction: function(aHandlerInfo) {
+    switch (aHandlerInfo.preferredAction) {
+      case Ci.nsIHandlerInfo.useSystemDefault:
+        return this._getIconURLForSystemDefault(aHandlerInfo);
+
+      case Ci.nsIHandlerInfo.useHelperApp:
+        let preferredApp = aHandlerInfo.preferredApplicationHandler;
+        if (this.isValidHandlerApp(preferredApp))
+          return this._getIconURLForHandlerApp(preferredApp);
+        break;
+
+      // This should never happen, but if preferredAction is set to some weird
+      // value, then fall back to the generic application icon.
+      default:
+        return ICON_URL_APP;
+    }
+  },
+
+  _getIconURLForHandlerApp: function(aHandlerApp) {
+    if (aHandlerApp instanceof Ci.nsILocalHandlerApp)
+      return this._getIconURLForFile(aHandlerApp.executable);
+
+    if (aHandlerApp instanceof Ci.nsIWebHandlerApp)
+      return this._getIconURLForWebApp(aHandlerApp.uriTemplate);
+
+    if (aHandlerApp instanceof Ci.nsIWebContentHandlerInfo)
+      return this._getIconURLForWebApp(aHandlerApp.uri)
+
+    // We know nothing about other kinds of handler apps.
+    return "";
+  },
+
+  _getIconURLForFile: function(aFile) {
+    var fph = this._ioSvc.getProtocolHandler("file").
+              QueryInterface(Ci.nsIFileProtocolHandler);
+    var urlSpec = fph.getURLSpecFromFile(aFile);
+
+    return "moz-icon://" + urlSpec + "?size=16";
+  },
+
+  _getIconURLForWebApp: function(aWebAppURITemplate) {
+    var uri = this._ioSvc.newURI(aWebAppURITemplate, null, null);
+
+    // Unfortunately we can't use the favicon service to get the favicon,
+    // because the service looks for a record with the exact URL we give it, and
+    // users won't have such records for URLs they don't visit, and users won't
+    // visit the handler's URL template, they'll only visit URLs derived from
+    // that template (i.e. with %s in the template replaced by the URL of the
+    // content being handled).
+
+    if (/^https?$/.test(uri.scheme) && this._prefSvc.getBoolPref("browser.chrome.favicons"))
+      return uri.prePath + "/favicon.ico";
+
+    return "";
+  },
+
+  _getIconURLForSystemDefault: function(aHandlerInfo) {
+    // Handler info objects for MIME types on some OSes implement a property bag
+    // interface from which we can get an icon for the default app, so if we're
+    // dealing with a MIME type on one of those OSes, then try to get the icon.
+    if ("wrappedHandlerInfo" in aHandlerInfo) {
+      let wrappedHandlerInfo = aHandlerInfo.wrappedHandlerInfo;
+
+      if (wrappedHandlerInfo instanceof Ci.nsIMIMEInfo &&
+          wrappedHandlerInfo instanceof Ci.nsIPropertyBag) {
+        try {
+          let url = wrappedHandlerInfo.getProperty("defaultApplicationIconURL");
+          if (url)
+            return url + "?size=16";
+        }
+        catch(ex) {}
+      }
+    }
+
+    // If this isn't a MIME type object on an OS that supports retrieving
+    // the icon, or if we couldn't retrieve the icon for some other reason,
+    // then use a generic icon.
+    return ICON_URL_APP;
+  }
+
+};
diff --git a/webbrowser/components/preferences/applications.xul b/webbrowser/components/preferences/applications.xul
new file mode 100644
index 0000000..2e6fa54
--- /dev/null
+++ b/webbrowser/components/preferences/applications.xul
@@ -0,0 +1,99 @@
+<?xml version="1.0"?>
+
+<!-- -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+  - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE overlay [
+  <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+  <!ENTITY % applicationsDTD SYSTEM "chrome://browser/locale/preferences/applications.dtd">
+  %brandDTD;
+  %applicationsDTD;
+]>
+
+<overlay id="ApplicationsPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <prefpane id="paneApplications"
+            onpaneload="gApplicationsPane.init();"
+            flex="1"
+            helpTopic="prefs-applications">
+
+    <preferences id="feedsPreferences">
+      <preference id="browser.feeds.handler"
+                  name="browser.feeds.handler"
+                  type="string"/>
+      <preference id="browser.feeds.handler.default"
+                  name="browser.feeds.handler.default"
+                  type="string"/>
+      <preference id="browser.feeds.handlers.application"
+                  name="browser.feeds.handlers.application"
+                  type="file"/>
+      <preference id="browser.feeds.handlers.webservice"
+                  name="browser.feeds.handlers.webservice"
+                  type="string"/>
+
+      <preference id="browser.videoFeeds.handler"
+                  name="browser.videoFeeds.handler"
+                  type="string"/>
+      <preference id="browser.videoFeeds.handler.default"
+                  name="browser.videoFeeds.handler.default"
+                  type="string"/>
+      <preference id="browser.videoFeeds.handlers.application"
+                  name="browser.videoFeeds.handlers.application"
+                  type="file"/>
+      <preference id="browser.videoFeeds.handlers.webservice"
+                  name="browser.videoFeeds.handlers.webservice"
+                  type="string"/>
+
+      <preference id="browser.audioFeeds.handler"
+                  name="browser.audioFeeds.handler"
+                  type="string"/>
+      <preference id="browser.audioFeeds.handler.default"
+                  name="browser.audioFeeds.handler.default"
+                  type="string"/>
+      <preference id="browser.audioFeeds.handlers.application"
+                  name="browser.audioFeeds.handlers.application"
+                  type="file"/>
+      <preference id="browser.audioFeeds.handlers.webservice"
+                  name="browser.audioFeeds.handlers.webservice"
+                  type="string"/>
+
+      <preference id="pref.downloads.disable_button.edit_actions"
+                  name="pref.downloads.disable_button.edit_actions"
+                  type="bool"/>
+    </preferences>
+
+    <script type="application/javascript" src="chrome://browser/content/preferences/applications.js"/>
+
+    <keyset>
+      <key key="&focusSearch1.key;" modifiers="accel" oncommand="gApplicationsPane.focusFilterBox();"/>
+      <key key="&focusSearch2.key;" modifiers="accel" oncommand="gApplicationsPane.focusFilterBox();"/>
+    </keyset>
+
+    <hbox>
+      <textbox id="filter" flex="1"
+               type="search"
+               placeholder="&filter.emptytext;"
+               aria-controls="handlersView"
+               oncommand="gApplicationsPane.filter();"/>
+    </hbox>
+
+    <separator class="thin"/>
+
+    <richlistbox id="handlersView" orient="vertical" persist="lastSelectedType"
+                 preference="pref.downloads.disable_button.edit_actions"
+                 onselect="gApplicationsPane.onSelectionChanged();">
+      <listheader equalsize="always" style="border: 0; padding: 0; -moz-appearance: none;">
+        <treecol id="typeColumn" label="&typeColumn.label;" value="type"
+                 accesskey="&typeColumn.accesskey;" persist="sortDirection"
+                 flex="1" onclick="gApplicationsPane.sort(event);"
+                 sortDirection="ascending"/>
+        <treecol id="actionColumn" label="&actionColumn2.label;" value="action"
+                 accesskey="&actionColumn2.accesskey;" persist="sortDirection"
+                 flex="1" onclick="gApplicationsPane.sort(event);"/>
+      </listheader>
+    </richlistbox>
+  </prefpane>
+</overlay>
diff --git a/webbrowser/components/preferences/colors.xul b/webbrowser/components/preferences/colors.xul
new file mode 100644
index 0000000..f2109ae
--- /dev/null
+++ b/webbrowser/components/preferences/colors.xul
@@ -0,0 +1,102 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+#ifdef XP_MACOSX
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css"?>
+#endif
+
+<!DOCTYPE prefwindow SYSTEM "chrome://browser/locale/preferences/colors.dtd" >
+
+<prefwindow id="ColorsDialog" type="child"
+            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+            title="&colorsDialog.title;"
+            dlgbuttons="accept,cancel,help"
+            ondialoghelp="openPrefsHelp()"
+#ifdef XP_MACOSX
+            style="width: &window.macWidth; !important;">
+#else
+            style="width: &window.width; !important;">
+#endif
+
+  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
+  <prefpane id="ColorsDialogPane"
+            helpTopic="prefs-fonts-and-colors">
+  
+    <preferences>
+      <preference id="browser.display.document_color_use"   name="browser.display.document_color_use"   type="int"/>
+      <preference id="browser.anchor_color"                 name="browser.anchor_color"                 type="string"/>
+      <preference id="browser.visited_color"                name="browser.visited_color"                type="string"/>
+      <preference id="browser.underline_anchors"            name="browser.underline_anchors"            type="bool"/>
+      <preference id="browser.display.foreground_color"     name="browser.display.foreground_color"     type="string"/>
+      <preference id="browser.display.background_color"     name="browser.display.background_color"     type="string"/>
+      <preference id="browser.display.use_system_colors"    name="browser.display.use_system_colors"    type="bool"/>
+    </preferences>
+    
+    <hbox>
+      <groupbox flex="1">
+        <caption label="&color;"/>
+        <hbox align="center">
+          <label value="&textColor.label;" accesskey="&textColor.accesskey;" control="foregroundtextmenu"/>
+          <spacer flex="1"/>
+          <colorpicker type="button" id="foregroundtextmenu" palettename="standard"
+                       preference="browser.display.foreground_color"/>
+        </hbox>
+        <hbox align="center" style="margin-top: 5px">
+          <label value="&backgroundColor.label;" accesskey="&backgroundColor.accesskey;" control="backgroundmenu"/>
+          <spacer flex="1"/>
+          <colorpicker type="button" id="backgroundmenu" palettename="standard"
+                       preference="browser.display.background_color"/>
+        </hbox>
+        <separator class="thin"/>
+        <hbox align="center">
+          <checkbox id="browserUseSystemColors" label="&useSystemColors.label;" accesskey="&useSystemColors.accesskey;"
+                    preference="browser.display.use_system_colors"/>
+        </hbox>
+      </groupbox>
+        
+      <groupbox flex="1">
+        <caption label="&links;"/>
+        <hbox align="center">
+          <label value="&linkColor.label;" accesskey="&linkColor.accesskey;" control="unvisitedlinkmenu"/>
+          <spacer flex="1"/>
+          <colorpicker type="button" id="unvisitedlinkmenu" palettename="standard"
+                       preference="browser.anchor_color"/>
+        </hbox>
+        <hbox align="center" style="margin-top: 5px">
+          <label value="&visitedLinkColor.label;" accesskey="&visitedLinkColor.accesskey;" control="visitedlinkmenu"/>
+          <spacer flex="1"/>
+          <colorpicker type="button" id="visitedlinkmenu" palettename="standard"
+                       preference="browser.visited_color"/>
+        </hbox>
+        <separator class="thin"/>
+        <hbox align="center">
+          <checkbox id="browserUnderlineAnchors" label="&underlineLinks.label;" accesskey="&underlineLinks.accesskey;"
+                    preference="browser.underline_anchors"/>
+        </hbox>
+      </groupbox>
+    </hbox>
+#ifdef XP_WIN
+    <vbox align="start">
+#else
+    <vbox>
+#endif
+      <label accesskey="&overridePageColors.accesskey;"
+             control="useDocumentColors">&overridePageColors.label;</label>
+      <menulist id="useDocumentColors" preference="browser.display.document_color_use">
+        <menupopup>
+          <menuitem label="&overridePageColors.always.label;"
+                    value="2" id="documentColorAlways"/>
+          <menuitem label="&overridePageColors.auto.label;"
+                    value="0" id="documentColorAutomatic"/>
+          <menuitem label="&overridePageColors.never.label;"
+                    value="1" id="documentColorNever"/>
+        </menupopup>
+      </menulist>
+    </vbox>
+  </prefpane>
+</prefwindow>
diff --git a/webbrowser/components/preferences/connection.js b/webbrowser/components/preferences/connection.js
new file mode 100644
index 0000000..da038c9
--- /dev/null
+++ b/webbrowser/components/preferences/connection.js
@@ -0,0 +1,200 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var gConnectionsDialog = {
+  beforeAccept: function ()
+  {
+    var proxyTypePref = document.getElementById("network.proxy.type");
+    if (proxyTypePref.value == 2) {
+      this.doAutoconfigURLFixup();
+      return true;
+    }
+
+    if (proxyTypePref.value != 1)
+      return true;
+
+    var httpProxyURLPref = document.getElementById("network.proxy.http");
+    var httpProxyPortPref = document.getElementById("network.proxy.http_port");
+    var shareProxiesPref = document.getElementById("network.proxy.share_proxy_settings");
+    if (shareProxiesPref.value) {
+      var proxyPrefs = ["ssl", "ftp", "socks"];
+      for (var i = 0; i < proxyPrefs.length; ++i) {
+        var proxyServerURLPref = document.getElementById("network.proxy." + proxyPrefs[i]);
+        var proxyPortPref = document.getElementById("network.proxy." + proxyPrefs[i] + "_port");
+        var backupServerURLPref = document.getElementById("network.proxy.backup." + proxyPrefs[i]);
+        var backupPortPref = document.getElementById("network.proxy.backup." + proxyPrefs[i] + "_port");
+        backupServerURLPref.value = proxyServerURLPref.value;
+        backupPortPref.value = proxyPortPref.value;
+        proxyServerURLPref.value = httpProxyURLPref.value;
+        proxyPortPref.value = httpProxyPortPref.value;
+      }
+    }
+    
+    this.sanitizeNoProxiesPref();
+    
+    return true;
+  },
+
+  checkForSystemProxy: function ()
+  {
+    if ("@mozilla.org/system-proxy-settings;1" in Components.classes)
+      document.getElementById("systemPref").removeAttribute("hidden");
+  },
+
+  proxyTypeChanged: function ()
+  {
+    var proxyTypePref = document.getElementById("network.proxy.type");
+
+    // Update http
+    var httpProxyURLPref = document.getElementById("network.proxy.http");
+    httpProxyURLPref.disabled = proxyTypePref.value != 1;
+    var httpProxyPortPref = document.getElementById("network.proxy.http_port");
+    httpProxyPortPref.disabled = proxyTypePref.value != 1;
+
+    // Now update the other protocols
+    this.updateProtocolPrefs();
+
+    var shareProxiesPref = document.getElementById("network.proxy.share_proxy_settings");
+    shareProxiesPref.disabled = proxyTypePref.value != 1;
+
+    var autologinProxyPref = document.getElementById("signon.autologin.proxy");
+    autologinProxyPref.disabled = proxyTypePref.value == 0;
+
+    var noProxiesPref = document.getElementById("network.proxy.no_proxies_on");
+    noProxiesPref.disabled = proxyTypePref.value == 0;
+
+    var autoconfigURLPref = document.getElementById("network.proxy.autoconfig_url");
+    autoconfigURLPref.disabled = proxyTypePref.value != 2;
+
+    this.updateReloadButton();
+  },
+
+  updateDNSPref: function ()
+  {
+    var socksVersionPref = document.getElementById("network.proxy.socks_version");
+    var socksDNSPref = document.getElementById("network.proxy.socks_remote_dns");
+    var proxyTypePref = document.getElementById("network.proxy.type");
+    var isDefinitelySocks4 = !socksVersionPref.disabled && socksVersionPref.value == 4;
+    socksDNSPref.disabled = (isDefinitelySocks4 || proxyTypePref.value == 0);
+    return undefined;
+  },
+
+  updateReloadButton: function ()
+  {
+    // Disable the "Reload PAC" button if the selected proxy type is not PAC or
+    // if the current value of the PAC textbox does not match the value stored
+    // in prefs.  Likewise, disable the reload button if PAC is not configured
+    // in prefs.
+
+    var typedURL = document.getElementById("networkProxyAutoconfigURL").value;
+    var proxyTypeCur = document.getElementById("network.proxy.type").value;
+
+    var prefs =
+        Components.classes["@mozilla.org/preferences-service;1"].
+        getService(Components.interfaces.nsIPrefBranch);
+    var pacURL = prefs.getCharPref("network.proxy.autoconfig_url");
+    var proxyType = prefs.getIntPref("network.proxy.type");
+
+    var disableReloadPref =
+        document.getElementById("pref.advanced.proxies.disable_button.reload");
+    disableReloadPref.disabled =
+        (proxyTypeCur != 2 || proxyType != 2 || typedURL != pacURL);
+  },
+  
+  readProxyType: function ()
+  {
+    this.proxyTypeChanged();
+    return undefined;
+  },
+  
+  updateProtocolPrefs: function ()
+  {
+    var proxyTypePref = document.getElementById("network.proxy.type");
+    var shareProxiesPref = document.getElementById("network.proxy.share_proxy_settings");
+    var proxyPrefs = ["ssl", "ftp", "socks"];
+    for (var i = 0; i < proxyPrefs.length; ++i) {
+      var proxyServerURLPref = document.getElementById("network.proxy." + proxyPrefs[i]);
+      var proxyPortPref = document.getElementById("network.proxy." + proxyPrefs[i] + "_port");
+      
+      // Restore previous per-proxy custom settings, if present. 
+      if (!shareProxiesPref.value) {
+        var backupServerURLPref = document.getElementById("network.proxy.backup." + proxyPrefs[i]);
+        var backupPortPref = document.getElementById("network.proxy.backup." + proxyPrefs[i] + "_port");
+        if (backupServerURLPref.hasUserValue) {
+          proxyServerURLPref.value = backupServerURLPref.value;
+          backupServerURLPref.reset();
+        }
+        if (backupPortPref.hasUserValue) {
+          proxyPortPref.value = backupPortPref.value;
+          backupPortPref.reset();
+        }
+      }
+
+      proxyServerURLPref.updateElements();
+      proxyPortPref.updateElements();
+      proxyServerURLPref.disabled = proxyTypePref.value != 1 || shareProxiesPref.value;
+      proxyPortPref.disabled = proxyServerURLPref.disabled;
+    }
+    var socksVersionPref = document.getElementById("network.proxy.socks_version");
+    socksVersionPref.disabled = proxyTypePref.value != 1 || shareProxiesPref.value;
+    this.updateDNSPref();
+    return undefined;
+  },
+  
+  readProxyProtocolPref: function (aProtocol, aIsPort)
+  {
+    var shareProxiesPref = document.getElementById("network.proxy.share_proxy_settings");
+    if (shareProxiesPref.value) {
+      var pref = document.getElementById("network.proxy.http" + (aIsPort ? "_port" : ""));    
+      return pref.value;
+    }
+    
+    var backupPref = document.getElementById("network.proxy.backup." + aProtocol + (aIsPort ? "_port" : ""));
+    return backupPref.hasUserValue ? backupPref.value : undefined;
+  },
+
+  reloadPAC: function ()
+  {
+    Components.classes["@mozilla.org/network/protocol-proxy-service;1"].
+        getService().reloadPAC();
+  },
+  
+  doAutoconfigURLFixup: function ()
+  {
+    var autoURL = document.getElementById("networkProxyAutoconfigURL");
+    var autoURLPref = document.getElementById("network.proxy.autoconfig_url");
+    var URIFixup = Components.classes["@mozilla.org/docshell/urifixup;1"]
+                             .getService(Components.interfaces.nsIURIFixup);
+    try {
+      autoURLPref.value = autoURL.value = URIFixup.createFixupURI(autoURL.value, 0).spec;
+    } catch(ex) {}
+  },
+
+  sanitizeNoProxiesPref: function()
+  {
+    var noProxiesPref = document.getElementById("network.proxy.no_proxies_on");
+    // replace substrings of ; and \n with commas if they're neither immediately
+    // preceded nor followed by a valid separator character
+    noProxiesPref.value = noProxiesPref.value.replace(/([^, \n;])[;\n]+(?![,\n;])/g, '$1,');
+    // replace any remaining ; and \n since some may follow commas, etc. 
+    noProxiesPref.value = noProxiesPref.value.replace(/[;\n]/g, '');
+  },
+  
+  readHTTPProxyServer: function ()
+  {
+    var shareProxiesPref = document.getElementById("network.proxy.share_proxy_settings");
+    if (shareProxiesPref.value)
+      this.updateProtocolPrefs();
+    return undefined;
+  },
+  
+  readHTTPProxyPort: function ()
+  {
+    var shareProxiesPref = document.getElementById("network.proxy.share_proxy_settings");
+    if (shareProxiesPref.value)
+      this.updateProtocolPrefs();
+    return undefined;
+  }
+};
diff --git a/webbrowser/components/preferences/connection.xul b/webbrowser/components/preferences/connection.xul
new file mode 100644
index 0000000..e6079dd
--- /dev/null
+++ b/webbrowser/components/preferences/connection.xul
@@ -0,0 +1,164 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<!DOCTYPE prefwindow SYSTEM "chrome://browser/locale/preferences/connection.dtd">
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+
+<prefwindow id="ConnectionsDialog" type="child"
+            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+            title="&connectionsDialog.title;"
+            dlgbuttons="accept,cancel,help"
+            onbeforeaccept="return gConnectionsDialog.beforeAccept();"
+            onload="gConnectionsDialog.checkForSystemProxy();"
+            ondialoghelp="openPrefsHelp()"
+#ifdef XP_MACOSX
+            style="width: &window.macWidth; !important;">
+#else
+            style="width: &window.width; !important;">
+#endif
+
+  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
+
+  <prefpane id="ConnectionsDialogPane"
+            helpTopic="prefs-connection-settings">
+
+    <preferences>
+      <preference id="network.proxy.type"         name="network.proxy.type"         type="int"
+                                                                onchange="gConnectionsDialog.proxyTypeChanged();"/>
+      <preference id="network.proxy.http"         name="network.proxy.http"         type="string"/>
+      <preference id="network.proxy.http_port"    name="network.proxy.http_port"    type="int"/>
+      <preference id="network.proxy.ftp"          name="network.proxy.ftp"          type="string"/>
+      <preference id="network.proxy.ftp_port"     name="network.proxy.ftp_port"     type="int"/>
+      <preference id="network.proxy.ssl"          name="network.proxy.ssl"          type="string"/>
+      <preference id="network.proxy.ssl_port"     name="network.proxy.ssl_port"     type="int"/>
+      <preference id="network.proxy.socks"        name="network.proxy.socks"        type="string"/>
+      <preference id="network.proxy.socks_port"   name="network.proxy.socks_port"   type="int"/>
+      <preference id="network.proxy.socks_version"  name="network.proxy.socks_version"  type="int"
+                                                                onchange="gConnectionsDialog.updateDNSPref();"/>
+      <preference id="network.proxy.socks_remote_dns"  name="network.proxy.socks_remote_dns"  type="bool"/>
+      <preference id="network.proxy.no_proxies_on"  name="network.proxy.no_proxies_on"  type="string"/>
+      <preference id="network.proxy.autoconfig_url" name="network.proxy.autoconfig_url" type="string"/>
+      <preference id="network.proxy.share_proxy_settings" name="network.proxy.share_proxy_settings" type="bool"/>
+      <preference id="signon.autologin.proxy"       name="signon.autologin.proxy"       type="bool"/>
+      <preference id="pref.advanced.proxies.disable_button.reload"
+                                                    name="pref.advanced.proxies.disable_button.reload" type="bool"/>
+      <preference id="network.proxy.backup.ftp"          name="network.proxy.backup.ftp"          type="string"/>
+      <preference id="network.proxy.backup.ftp_port"     name="network.proxy.backup.ftp_port"     type="int"/>
+      <preference id="network.proxy.backup.ssl"          name="network.proxy.backup.ssl"          type="string"/>
+      <preference id="network.proxy.backup.ssl_port"     name="network.proxy.backup.ssl_port"     type="int"/>
+      <preference id="network.proxy.backup.socks"        name="network.proxy.backup.socks"        type="string"/>
+      <preference id="network.proxy.backup.socks_port"   name="network.proxy.backup.socks_port"   type="int"/>
+    </preferences>
+
+    <script type="application/javascript" src="chrome://browser/content/preferences/connection.js"/>
+
+    <stringbundle id="preferencesBundle" src="chrome://browser/locale/preferences/preferences.properties"/>
+
+    <groupbox>
+      <caption label="&proxyTitle.label;"/>
+
+      <radiogroup id="networkProxyType" preference="network.proxy.type"
+                  onsyncfrompreference="return gConnectionsDialog.readProxyType();">
+        <radio value="0" label="&noProxyTypeRadio.label;" accesskey="&noProxyTypeRadio.accesskey;"/>
+        <radio value="4" label="&WPADTypeRadio.label;" accesskey="&WPADTypeRadio.accesskey;"/>
+        <radio value="5" label="&systemTypeRadio.label;" accesskey="&systemTypeRadio.accesskey;" id="systemPref" hidden="true"/>
+        <radio value="1" label="&manualTypeRadio.label;" accesskey="&manualTypeRadio.accesskey;"/>
+        <grid class="indent" flex="1">
+          <columns>
+            <column/>
+            <column flex="1"/>
+          </columns>
+          <rows>
+            <row align="center">
+              <hbox pack="end">
+                <label value="&http.label;" accesskey="&http.accesskey;" control="networkProxyHTTP"/>
+              </hbox>
+              <hbox align="center">
+                <textbox id="networkProxyHTTP" flex="1"
+                         preference="network.proxy.http" onsyncfrompreference="return gConnectionsDialog.readHTTPProxyServer();"/>
+                <label value="&port.label;" accesskey="&HTTPport.accesskey;" control="networkProxyHTTP_Port"/>
+                <textbox id="networkProxyHTTP_Port" type="number" max="65535" size="5"
+                         preference="network.proxy.http_port" onsyncfrompreference="return gConnectionsDialog.readHTTPProxyPort();"/>
+              </hbox>
+            </row>
+            <row>
+              <hbox/>
+              <hbox>
+                <checkbox id="shareAllProxies" label="&shareproxy.label;" accesskey="&shareproxy.accesskey;"
+                          preference="network.proxy.share_proxy_settings"
+                          onsyncfrompreference="return gConnectionsDialog.updateProtocolPrefs();"/>
+              </hbox>
+            </row>
+            <row align="center">
+              <hbox pack="end">
+                <label value="&ssl.label;" accesskey="&ssl.accesskey;" control="networkProxySSL"/>
+              </hbox>
+              <hbox align="center">
+                <textbox id="networkProxySSL" flex="1" preference="network.proxy.ssl"
+                         onsyncfrompreference="return gConnectionsDialog.readProxyProtocolPref('ssl', false);"/>
+                <label value="&port.label;" accesskey="&SSLport.accesskey;" control="networkProxySSL_Port"/>
+                <textbox id="networkProxySSL_Port" type="number" max="65535" size="5" preference="network.proxy.ssl_port"
+                         onsyncfrompreference="return gConnectionsDialog.readProxyProtocolPref('ssl', true);"/>
+              </hbox>
+            </row>
+            <row align="center">
+              <hbox pack="end">
+                <label value="&ftp.label;" accesskey="&ftp.accesskey;" control="networkProxyFTP"/>
+              </hbox>
+              <hbox align="center">
+                <textbox id="networkProxyFTP" flex="1" preference="network.proxy.ftp"
+                         onsyncfrompreference="return gConnectionsDialog.readProxyProtocolPref('ftp', false);"/>
+                <label value="&port.label;" accesskey="&FTPport.accesskey;" control="networkProxyFTP_Port"/>
+                <textbox id="networkProxyFTP_Port" type="number" max="65535" size="5" preference="network.proxy.ftp_port"
+                         onsyncfrompreference="return gConnectionsDialog.readProxyProtocolPref('ftp', true);"/>
+              </hbox>
+            </row>
+            <row align="center">
+              <hbox pack="end">
+                <label value="&socks.label;" accesskey="&socks.accesskey;" control="networkProxySOCKS"/>
+              </hbox>
+              <hbox align="center">
+                <textbox id="networkProxySOCKS" flex="1" preference="network.proxy.socks"
+                         onsyncfrompreference="return gConnectionsDialog.readProxyProtocolPref('socks', false);"/>
+                <label value="&port.label;" accesskey="&SOCKSport.accesskey;" control="networkProxySOCKS_Port"/>
+                <textbox id="networkProxySOCKS_Port" type="number" max="65535" size="5" preference="network.proxy.socks_port"
+                         onsyncfrompreference="return gConnectionsDialog.readProxyProtocolPref('socks', true);"/>
+              </hbox>
+            </row>
+            <row>
+              <spacer/>
+              <radiogroup id="networkProxySOCKSVersion" orient="horizontal"
+                          preference="network.proxy.socks_version">
+                <radio id="networkProxySOCKSVersion4" value="4" label="&socks4.label;" accesskey="&socks4.accesskey;"/>
+                <radio id="networkProxySOCKSVersion5" value="5" label="&socks5.label;" accesskey="&socks5.accesskey;"/>
+              </radiogroup>
+            </row>
+          </rows>
+        </grid>
+        <radio value="2" label="&autoTypeRadio.label;" accesskey="&autoTypeRadio.accesskey;"/>
+        <hbox class="indent" flex="1" align="center">
+          <textbox id="networkProxyAutoconfigURL" flex="1" preference="network.proxy.autoconfig_url"
+                   oninput="gConnectionsDialog.updateReloadButton();"/>
+          <button id="autoReload" icon="refresh"
+                  label="&reload.label;" accesskey="&reload.accesskey;"
+                  oncommand="gConnectionsDialog.reloadPAC();" 
+                  preference="pref.advanced.proxies.disable_button.reload"/>
+        </hbox>
+      </radiogroup>
+      <separator class="thin"/>
+      <label value="&noproxy.label;" accesskey="&noproxy.accesskey;" control="networkProxyNone"/>
+      <textbox id="networkProxyNone" preference="network.proxy.no_proxies_on" multiline="true" rows="2"/>
+      <label value="&noproxyExplain.label;" control="networkProxyNone"/>
+      <checkbox id="autologinProxy" preference="signon.autologin.proxy"
+                label="&autologinproxy.label;" accesskey="&autologinproxy.accesskey;"
+                tooltiptext="&autologinproxy.tooltip;"/>
+      <checkbox id="networkProxySOCKSRemoteDNS" preference="network.proxy.socks_remote_dns"
+                label="&socksRemoteDNS.label;" accesskey="&socksRemoteDNS.accesskey;"/>
+    </groupbox>
+  </prefpane>
+</prefwindow>
diff --git a/webbrowser/components/preferences/content.js b/webbrowser/components/preferences/content.js
new file mode 100644
index 0000000..5ae84c2
--- /dev/null
+++ b/webbrowser/components/preferences/content.js
@@ -0,0 +1,187 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var gContentPane = {
+
+  /**
+   * Initializes the fonts dropdowns displayed in this pane.
+   */
+  init: function ()
+  {
+    this._rebuildFonts();
+    var menulist = document.getElementById("defaultFont");
+    if (menulist.selectedIndex == -1) {
+      menulist.insertItemAt(0, "", "", "");
+      menulist.selectedIndex = 0;
+    }
+  },
+
+  // UTILITY FUNCTIONS
+
+  /**
+   * Utility function to enable/disable the button specified by aButtonID based
+   * on the value of the Boolean preference specified by aPreferenceID.
+   */
+  updateButtons: function (aButtonID, aPreferenceID)
+  {
+    var button = document.getElementById(aButtonID);
+    var preference = document.getElementById(aPreferenceID);
+    button.disabled = preference.value != true;
+    return undefined;
+  },
+
+  /**
+   * Utility function to enable/disable the checkboxes for MSE options depending
+   * on the value of media.mediasource.enabled.
+   */
+  updateMSE: function ()
+  {
+    var checkboxMSEMP4 = document.getElementById('videoMSEMP4');
+    var checkboxMSEWebM = document.getElementById('videoMSEWebM');
+    var preference = document.getElementById('media.mediasource.enabled');
+    checkboxMSEMP4.disabled = preference.value != true;
+    checkboxMSEWebM.disabled = preference.value != true;
+  },
+
+  // BEGIN UI CODE
+
+  /*
+   * Preferences:
+   *
+   * dom.disable_open_during_load
+   * - true if popups are blocked by default, false otherwise
+   */
+
+  // POP-UPS
+
+  /**
+   * Displays the popup exceptions dialog where specific site popup preferences
+   * can be set.
+   */
+  showPopupExceptions: function ()
+  {
+    var bundlePreferences = document.getElementById("bundlePreferences");
+    var params = { blockVisible: false, sessionVisible: false, allowVisible: true, prefilledHost: "", permissionType: "popup" };
+    params.windowTitle = bundlePreferences.getString("popuppermissionstitle");
+    params.introText = bundlePreferences.getString("popuppermissionstext");
+    document.documentElement.openWindow("Browser:Permissions",
+                                        "chrome://browser/content/preferences/permissions.xul",
+                                        "", params);
+  },
+
+
+  // FONTS
+
+  /**
+   * Populates the default font list in UI.
+   */
+  _rebuildFonts: function ()
+  {
+    var langGroupPref = document.getElementById("font.language.group");
+    this._selectDefaultLanguageGroup(langGroupPref.value,
+                                     this._readDefaultFontTypeForLanguage(langGroupPref.value) == "serif");
+  },
+
+  /**
+   * 
+   */
+  _selectDefaultLanguageGroup: function (aLanguageGroup, aIsSerif)
+  {
+    const kFontNameFmtSerif         = "font.name.serif.%LANG%";
+    const kFontNameFmtSansSerif     = "font.name.sans-serif.%LANG%";
+    const kFontNameListFmtSerif     = "font.name-list.serif.%LANG%";
+    const kFontNameListFmtSansSerif = "font.name-list.sans-serif.%LANG%";
+    const kFontSizeFmtVariable      = "font.size.variable.%LANG%";
+
+    var prefs = [{ format   : aIsSerif ? kFontNameFmtSerif : kFontNameFmtSansSerif,
+                   type     : "fontname",
+                   element  : "defaultFont",
+                   fonttype : aIsSerif ? "serif" : "sans-serif" },
+                 { format   : aIsSerif ? kFontNameListFmtSerif : kFontNameListFmtSansSerif,
+                   type     : "unichar",
+                   element  : null,
+                   fonttype : aIsSerif ? "serif" : "sans-serif" },
+                 { format   : kFontSizeFmtVariable,
+                   type     : "int",
+                   element  : "defaultFontSize",
+                   fonttype : null }];
+    var preferences = document.getElementById("contentPreferences");
+    for (var i = 0; i < prefs.length; ++i) {
+      var preference = document.getElementById(prefs[i].format.replace(/%LANG%/, aLanguageGroup));
+      if (!preference) {
+        preference = document.createElement("preference");
+        var name = prefs[i].format.replace(/%LANG%/, aLanguageGroup);
+        preference.id = name;
+        preference.setAttribute("name", name);
+        preference.setAttribute("type", prefs[i].type);
+        preferences.appendChild(preference);
+      }
+
+      if (!prefs[i].element)
+        continue;
+
+      var element = document.getElementById(prefs[i].element);
+      if (element) {
+        element.setAttribute("preference", preference.id);
+
+        if (prefs[i].fonttype)
+          FontBuilder.buildFontList(aLanguageGroup, prefs[i].fonttype, element);
+
+        preference.setElementValue(element);
+      }
+    }
+  },
+
+  /**
+   * Returns the type of the current default font for the language denoted by
+   * aLanguageGroup.
+   */
+  _readDefaultFontTypeForLanguage: function (aLanguageGroup)
+  {
+    const kDefaultFontType = "font.default.%LANG%";
+    var defaultFontTypePref = kDefaultFontType.replace(/%LANG%/, aLanguageGroup);
+    var preference = document.getElementById(defaultFontTypePref);
+    if (!preference) {
+      preference = document.createElement("preference");
+      preference.id = defaultFontTypePref;
+      preference.setAttribute("name", defaultFontTypePref);
+      preference.setAttribute("type", "string");
+      preference.setAttribute("onchange", "gContentPane._rebuildFonts();");
+      document.getElementById("contentPreferences").appendChild(preference);
+    }
+    return preference.value;
+  },
+
+  /**
+   * Displays the fonts dialog, where web page font names and sizes can be
+   * configured.
+   */  
+  configureFonts: function ()
+  {
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/fonts.xul",
+                                           "", null);
+  },
+
+  /**
+   * Displays the colors dialog, where default web page/link/etc. colors can be
+   * configured.
+   */
+  configureColors: function ()
+  {
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/colors.xul",
+                                           "", null);  
+  },
+
+  // LANGUAGES
+
+  /**
+   * Shows a dialog in which the preferred language for web content may be set.
+   */
+  showLanguages: function ()
+  {
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/languages.xul",
+                                           "", null);
+  }
+};
diff --git a/webbrowser/components/preferences/content.xul b/webbrowser/components/preferences/content.xul
new file mode 100644
index 0000000..23d942e
--- /dev/null
+++ b/webbrowser/components/preferences/content.xul
@@ -0,0 +1,171 @@
+<?xml version="1.0"?>
+
+<!-- -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE overlay [
+  <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+  <!ENTITY % contentDTD SYSTEM "chrome://browser/locale/preferences/content.dtd">
+  %brandDTD;
+  %contentDTD;
+]>
+
+<overlay id="ContentPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <prefpane id="paneContent" 
+            onpaneload="gContentPane.init();"
+            helpTopic="prefs-content">
+
+    <preferences id="contentPreferences">
+      <!--XXX buttons prefs -->
+
+      <!-- POPUPS, IMAGES -->
+      <preference id="dom.disable_open_during_load"   name="dom.disable_open_during_load"   type="bool"/>
+      <preference id="permissions.default.image"      name="permissions.default.image"      type="int"/>
+
+      <!-- FONTS -->
+      <preference id="font.language.group"
+                  name="font.language.group"
+                  type="wstring"
+                  onchange="gContentPane._rebuildFonts();"/>
+                  
+      <!-- VIDEO -->
+      <preference id="media.mediasource.enabled"       name="media.mediasource.enabled"       type="bool"/>
+      <preference id="media.mediasource.mp4.enabled"   name="media.mediasource.mp4.enabled"   type="bool"/>
+      <preference id="media.mediasource.webm.enabled"  name="media.mediasource.webm.enabled"  type="bool"/>
+      
+    </preferences>
+    
+    <script type="application/javascript" src="chrome://mozapps/content/preferences/fontbuilder.js"/>
+    <script type="application/javascript" src="chrome://browser/content/preferences/content.js"/>
+
+    <stringbundle id="bundlePreferences" src="chrome://browser/locale/preferences/preferences.properties"/>
+
+    <!-- various checkboxes, font-fu -->
+    <groupbox id="miscGroup">
+      <grid id="contentGrid">
+        <columns>
+          <column flex="1"/>
+          <column/>
+        </columns>
+        <rows id="contentRows-1">
+          <row id="popupPolicyRow">
+            <vbox align="start">
+              <checkbox id="popupPolicy" preference="dom.disable_open_during_load"
+                        label="&blockPopups.label;" accesskey="&blockPopups.accesskey;"
+                        onsyncfrompreference="return gContentPane.updateButtons('popupPolicyButton', 
+                                                                            'dom.disable_open_during_load');"/>
+            </vbox>
+            <button id="popupPolicyButton" label="&popupExceptions.label;"
+                    oncommand="gContentPane.showPopupExceptions();"
+                    accesskey="&popupExceptions.accesskey;"/>
+          </row>
+          <row id="enableImagesRow">
+            <hbox align="center">
+              	<label id="loadImages" control="loadImages-menu">&loadImages.label;</label>
+					<menulist id="loadImages-menu" preference="permissions.default.image" sizetopopup="always">
+						<menupopup>
+							<menuitem label="&loadImages.always;" value="1" />
+							<menuitem label="&loadImages.never;" value="2" />
+							<menuitem label="&loadImages.no3rdparty;" value="3" />
+						</menupopup>
+					</menulist>
+            </hbox>
+          </row>
+        </rows>
+      </grid>
+    </groupbox>
+
+    <!-- Fonts and Colors -->
+    <groupbox id="fontsGroup">
+      <caption label="&fontsAndColors.label;"/>
+
+      <grid id="fontsGrid">
+        <columns>
+          <column flex="1"/>
+          <column/>
+        </columns>
+        <rows id="fontsRows">
+          <row id="fontRow">
+            <hbox align="center">
+              <label control="defaultFont" accesskey="&defaultFont.accesskey;">&defaultFont.label;</label>
+              <menulist id="defaultFont" flex="1"/>
+              <label control="defaultFontSize" accesskey="&defaultSize.accesskey;">&defaultSize.label;</label>
+              <menulist id="defaultFontSize">
+                <menupopup>
+                  <menuitem value="9" label="9"/>
+                  <menuitem value="10" label="10"/>
+                  <menuitem value="11" label="11"/>
+                  <menuitem value="12" label="12"/>
+                  <menuitem value="13" label="13"/>
+                  <menuitem value="14" label="14"/>
+                  <menuitem value="15" label="15"/>
+                  <menuitem value="16" label="16"/>
+                  <menuitem value="17" label="17"/>
+                  <menuitem value="18" label="18"/>
+                  <menuitem value="20" label="20"/>
+                  <menuitem value="22" label="22"/>
+                  <menuitem value="24" label="24"/>
+                  <menuitem value="26" label="26"/>
+                  <menuitem value="28" label="28"/>
+                  <menuitem value="30" label="30"/>
+                  <menuitem value="32" label="32"/>
+                  <menuitem value="34" label="34"/>
+                  <menuitem value="36" label="36"/>
+                  <menuitem value="40" label="40"/>
+                  <menuitem value="44" label="44"/>
+                  <menuitem value="48" label="48"/>
+                  <menuitem value="56" label="56"/>
+                  <menuitem value="64" label="64"/>
+                  <menuitem value="72" label="72"/>
+                </menupopup>
+              </menulist>
+            </hbox>
+            <button id="advancedFonts" icon="select-font"
+                    label="&advancedFonts.label;"
+                    accesskey="&advancedFonts.accesskey;"
+                    oncommand="gContentPane.configureFonts();"/>
+          </row>
+          <row id="colorsRow">
+            <hbox/>
+            <button id="colors" icon="select-color"
+                    label="&colors.label;"
+                    accesskey="&colors.accesskey;"
+                    oncommand="gContentPane.configureColors();"/>
+          </row>
+        </rows>
+      </grid>
+    </groupbox>
+
+    <!-- Languages -->
+    <groupbox id="languagesGroup">
+      <caption label="&languages.label;"/>
+
+      <hbox id="languagesBox" align="center">
+        <description flex="1" control="chooseLanguage">&chooseLanguage.label;</description>
+        <button id="chooseLanguage"
+                label="&chooseButton.label;"
+                accesskey="&chooseButton.accesskey;"
+                oncommand="gContentPane.showLanguages();"/>
+      </hbox>
+    </groupbox>
+
+    <!-- Video -->
+     <groupbox id="videoGroup">
+       <caption label="&video.label;"/>
+ 
+       <checkbox id="videoMSE" preference="media.mediasource.enabled"
+                 label="&videoMSE.label;" accesskey="&videoMSE.accesskey;"
+                 onsyncfrompreference="gContentPane.updateMSE();"/>
+       <checkbox class="indent" id="videoMSEMP4" preference="media.mediasource.mp4.enabled"
+                 label="&videoMSEMP4.label;" accesskey="&videoMSEMP4.accesskey;"/>
+       <checkbox class="indent" id="videoMSEWebM" preference="media.mediasource.webm.enabled"
+                 label="&videoMSEWebM.label;" accesskey="&videoMSEWebM.accesskey;"/>
+     </groupbox>
+
+  </prefpane>
+
+</overlay>
diff --git a/webbrowser/components/preferences/cookies.js b/webbrowser/components/preferences/cookies.js
new file mode 100644
index 0000000..4fa47ee
--- /dev/null
+++ b/webbrowser/components/preferences/cookies.js
@@ -0,0 +1,948 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const nsICookie = Components.interfaces.nsICookie;
+
+Components.utils.import("resource://gre/modules/PluralForm.jsm");
+
+var gCookiesWindow = {
+  _cm               : Components.classes["@mozilla.org/cookiemanager;1"]
+                                .getService(Components.interfaces.nsICookieManager),
+  _ds               : Components.classes["@mozilla.org/intl/scriptabledateformat;1"]
+                                .getService(Components.interfaces.nsIScriptableDateFormat),
+  _hosts            : {},
+  _hostOrder        : [],
+  _tree             : null,
+  _bundle           : null,
+
+  init: function () {
+    var os = Components.classes["@mozilla.org/observer-service;1"]
+                       .getService(Components.interfaces.nsIObserverService);
+    os.addObserver(this, "cookie-changed", false);
+    os.addObserver(this, "perm-changed", false);
+
+    this._bundle = document.getElementById("bundlePreferences");
+    this._tree = document.getElementById("cookiesList");
+
+    let removeAllCookies = document.getElementById("removeAllCookies");
+    removeAllCookies.setAttribute("accesskey", this._bundle.getString("removeAllCookies.accesskey"));
+    let removeSelectedCookies = document.getElementById("removeSelectedCookies");
+    removeSelectedCookies.setAttribute("accesskey", this._bundle.getString("removeSelectedCookies.accesskey"));
+
+    this._populateList(true);
+
+    document.getElementById("filter").focus();
+  },
+
+  uninit: function () {
+    var os = Components.classes["@mozilla.org/observer-service;1"]
+                       .getService(Components.interfaces.nsIObserverService);
+    os.removeObserver(this, "cookie-changed");
+    os.removeObserver(this, "perm-changed");
+  },
+
+  _populateList: function (aInitialLoad) {
+    this._loadCookies();
+    this._tree.view = this._view;
+    if (aInitialLoad)
+      this.sort("rawHost");
+    if (this._view.rowCount > 0)
+      this._tree.view.selection.select(0);
+
+    if (aInitialLoad) {
+      if ("arguments" in window &&
+          window.arguments[0] &&
+          window.arguments[0].filterString)
+        this.setFilter(window.arguments[0].filterString);
+    }
+    else {
+      if (document.getElementById("filter").value != "")
+        this.filter();
+    }
+
+    this._updateRemoveAllButton();
+
+    this._saveState();
+  },
+
+  _cookieEquals: function (aCookieA, aCookieB, aStrippedHost) {
+    return aCookieA.rawHost == aStrippedHost &&
+           aCookieA.name == aCookieB.name &&
+           aCookieA.path == aCookieB.path &&
+           ChromeUtils.isOriginAttributesEqual(aCookieA.originAttributes,
+                                               aCookieB.originAttributes);
+  },
+
+  observe: function (aCookie, aTopic, aData) {
+    if (aTopic != "cookie-changed")
+      return;
+
+    if (aCookie instanceof Components.interfaces.nsICookie) {
+      var strippedHost = this._makeStrippedHost(aCookie.host);
+      if (aData == "changed")
+        this._handleCookieChanged(aCookie, strippedHost);
+      else if (aData == "added")
+        this._handleCookieAdded(aCookie, strippedHost);
+    }
+    else if (aData == "cleared") {
+      this._hosts = {};
+      this._hostOrder = [];
+
+      var oldRowCount = this._view._rowCount;
+      this._view._rowCount = 0;
+      this._tree.treeBoxObject.rowCountChanged(0, -oldRowCount);
+      this._view.selection.clearSelection();
+      this._updateRemoveAllButton();
+    }
+    else if (aData == "reload") {
+      // first, clear any existing entries
+      this.observe(aCookie, aTopic, "cleared");
+
+      // then, reload the list
+      this._populateList(false);
+    }
+
+    // We don't yet handle aData == "deleted" - it's a less common case
+    // and is rather complicated as selection tracking is difficult
+  },
+
+  _handleCookieChanged: function (changedCookie, strippedHost) {
+    var rowIndex = 0;
+    var cookieItem = null;
+    if (!this._view._filtered) {
+      for (var i = 0; i < this._hostOrder.length; ++i) { // (var host in this._hosts) {
+        ++rowIndex;
+        var hostItem = this._hosts[this._hostOrder[i]]; // var hostItem = this._hosts[host];
+        if (this._hostOrder[i] == strippedHost) { // host == strippedHost) {
+          // Host matches, look for the cookie within this Host collection
+          // and update its data
+          for (var j = 0; j < hostItem.cookies.length; ++j) {
+            ++rowIndex;
+            var currCookie = hostItem.cookies[j];
+            if (this._cookieEquals(currCookie, changedCookie, strippedHost)) {
+              currCookie.value    = changedCookie.value;
+              currCookie.isSecure = changedCookie.isSecure;
+              currCookie.isDomain = changedCookie.isDomain;
+              currCookie.expires  = changedCookie.expires;
+              cookieItem = currCookie;
+              break;
+            }
+          }
+        }
+        else if (hostItem.open)
+          rowIndex += hostItem.cookies.length;
+      }
+    }
+    else {
+      // Just walk the filter list to find the item. It doesn't matter that
+      // we don't update the main Host collection when we do this, because
+      // when the filter is reset the Host collection is rebuilt anyway.
+      for (rowIndex = 0; rowIndex < this._view._filterSet.length; ++rowIndex) {
+        currCookie = this._view._filterSet[rowIndex];
+        if (this._cookieEquals(currCookie, changedCookie, strippedHost)) {
+          currCookie.value    = changedCookie.value;
+          currCookie.isSecure = changedCookie.isSecure;
+          currCookie.isDomain = changedCookie.isDomain;
+          currCookie.expires  = changedCookie.expires;
+          cookieItem = currCookie;
+          break;
+        }
+      }
+    }
+
+    // Make sure the tree display is up to date...
+    this._tree.treeBoxObject.invalidateRow(rowIndex);
+    // ... and if the cookie is selected, update the displayed metadata too
+    if (cookieItem != null && this._view.selection.currentIndex == rowIndex)
+      this._updateCookieData(cookieItem);
+  },
+
+  _handleCookieAdded: function (changedCookie, strippedHost) {
+    var rowCountImpact = 0;
+    var addedHost = { value: 0 };
+    this._addCookie(strippedHost, changedCookie, addedHost);
+    if (!this._view._filtered) {
+      // The Host collection for this cookie already exists, and it's not open,
+      // so don't increment the rowCountImpact becaues the user is not going to
+      // see the additional rows as they're hidden.
+      if (addedHost.value || this._hosts[strippedHost].open)
+        ++rowCountImpact;
+    }
+    else {
+      // We're in search mode, and the cookie being added matches
+      // the search condition, so add it to the list.
+      var c = this._makeCookieObject(strippedHost, changedCookie);
+      if (this._cookieMatchesFilter(c)) {
+        this._view._filterSet.push(this._makeCookieObject(strippedHost, changedCookie));
+        ++rowCountImpact;
+      }
+    }
+    // Now update the tree display at the end (we could/should re run the sort
+    // if any to get the position correct.)
+    var oldRowCount = this._rowCount;
+    this._view._rowCount += rowCountImpact;
+    this._tree.treeBoxObject.rowCountChanged(oldRowCount - 1, rowCountImpact);
+
+    this._updateRemoveAllButton();
+  },
+
+  _view: {
+    _filtered   : false,
+    _filterSet  : [],
+    _filterValue: "",
+    _rowCount   : 0,
+    _cacheValid : 0,
+    _cacheItems : [],
+    get rowCount() {
+      return this._rowCount;
+    },
+
+    _getItemAtIndex: function (aIndex) {
+      if (this._filtered)
+        return this._filterSet[aIndex];
+
+      var start = 0;
+      var count = 0, hostIndex = 0;
+
+      var cacheIndex = Math.min(this._cacheValid, aIndex);
+      if (cacheIndex > 0) {
+        var cacheItem = this._cacheItems[cacheIndex];
+        start = cacheItem['start'];
+        count = hostIndex = cacheItem['count'];
+      }
+
+      for (var i = start; i < gCookiesWindow._hostOrder.length; ++i) { // var host in gCookiesWindow._hosts) {
+        var currHost = gCookiesWindow._hosts[gCookiesWindow._hostOrder[i]]; // gCookiesWindow._hosts[host];
+        if (!currHost) continue;
+        if (count == aIndex)
+          return currHost;
+        hostIndex = count;
+
+        var cacheEntry = { 'start' : i, 'count' : count };
+        var cacheStart = count;
+
+        if (currHost.open) {
+          if (count < aIndex && aIndex <= (count + currHost.cookies.length)) {
+            // We are looking for an entry within this host's children,
+            // enumerate them looking for the index.
+            ++count;
+            for (var i = 0; i < currHost.cookies.length; ++i) {
+              if (count == aIndex) {
+                var cookie = currHost.cookies[i];
+                cookie.parentIndex = hostIndex;
+                return cookie;
+              }
+              ++count;
+            }
+          }
+          else {
+            // A host entry was open, but we weren't looking for an index
+            // within that host entry's children, so skip forward over the
+            // entry's children. We need to add one to increment for the
+            // host value too.
+            count += currHost.cookies.length + 1;
+          }
+        }
+        else
+          ++count;
+
+        for (var j = cacheStart; j < count; j++)
+          this._cacheItems[j] = cacheEntry;
+        this._cacheValid = count - 1;
+      }
+      return null;
+    },
+
+    _removeItemAtIndex: function (aIndex, aCount) {
+      var removeCount = aCount === undefined ? 1 : aCount;
+      if (this._filtered) {
+        // remove the cookies from the unfiltered set so that they
+        // don't reappear when the filter is changed. See bug 410863.
+        for (var i = aIndex; i < aIndex + removeCount; ++i) {
+          var item = this._filterSet[i];
+          var parent = gCookiesWindow._hosts[item.rawHost];
+          for (var j = 0; j < parent.cookies.length; ++j) {
+            if (item == parent.cookies[j]) {
+              parent.cookies.splice(j, 1);
+              break;
+            }
+          }
+        }
+        this._filterSet.splice(aIndex, removeCount);
+        return;
+      }
+
+      var item = this._getItemAtIndex(aIndex);
+      if (!item) return;
+      this._invalidateCache(aIndex - 1);
+      if (item.container) {
+        gCookiesWindow._hosts[item.rawHost] = null;
+      } else {
+        var parent = this._getItemAtIndex(item.parentIndex);
+        for (var i = 0; i < parent.cookies.length; ++i) {
+          var cookie = parent.cookies[i];
+          if (item.rawHost == cookie.rawHost &&
+              item.name == cookie.name &&
+              item.path == cookie.path &&
+              ChromeUtils.isOriginAttributesEqual(item.originAttributes,
+                                                  cookie.originAttributes)) {
+            parent.cookies.splice(i, removeCount);
+          }
+        }
+      }
+    },
+
+    _invalidateCache: function (aIndex) {
+      this._cacheValid = Math.min(this._cacheValid, aIndex);
+    },
+
+    getCellText: function (aIndex, aColumn) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item)
+          return "";
+        if (aColumn.id == "domainCol")
+          return item.rawHost;
+        else if (aColumn.id == "nameCol")
+          return item.name;
+      }
+      else {
+        if (aColumn.id == "domainCol")
+          return this._filterSet[aIndex].rawHost;
+        else if (aColumn.id == "nameCol")
+          return this._filterSet[aIndex].name;
+      }
+      return "";
+    },
+
+    _selection: null,
+    get selection () { return this._selection; },
+    set selection (val) { this._selection = val; return val; },
+    getRowProperties: function (aIndex) { return ""; },
+    getCellProperties: function (aIndex, aColumn) { return ""; },
+    getColumnProperties: function (aColumn) { return ""; },
+    isContainer: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item) return false;
+        return item.container;
+      }
+      return false;
+    },
+    isContainerOpen: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item) return false;
+        return item.open;
+      }
+      return false;
+    },
+    isContainerEmpty: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item) return false;
+        return item.cookies.length == 0;
+      }
+      return false;
+    },
+    isSeparator: function (aIndex) { return false; },
+    isSorted: function (aIndex) { return false; },
+    canDrop: function (aIndex, aOrientation) { return false; },
+    drop: function (aIndex, aOrientation) {},
+    getParentIndex: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        // If an item has no parent index (i.e. it is at the top level) this
+        // function MUST return -1 otherwise we will go into an infinite loop.
+        // Containers are always top level items in the cookies tree, so make
+        // sure to return the appropriate value here.
+        if (!item || item.container) return -1;
+        return item.parentIndex;
+      }
+      return -1;
+    },
+    hasNextSibling: function (aParentIndex, aIndex) {
+      if (!this._filtered) {
+        // |aParentIndex| appears to be bogus, but we can get the real
+        // parent index by getting the entry for |aIndex| and reading the
+        // parentIndex field.
+        // The index of the last item in this host collection is the
+        // index of the parent + the size of the host collection, and
+        // aIndex has a next sibling if it is less than this value.
+        var item = this._getItemAtIndex(aIndex);
+        if (item) {
+          if (item.container) {
+            for (var i = aIndex + 1; i < this.rowCount; ++i) {
+              var subsequent = this._getItemAtIndex(i);
+              if (subsequent.container)
+                return true;
+            }
+            return false;
+          }
+          else {
+            var parent = this._getItemAtIndex(item.parentIndex);
+            if (parent && parent.container)
+              return aIndex < item.parentIndex + parent.cookies.length;
+          }
+        }
+      }
+      return aIndex < this.rowCount - 1;
+    },
+    hasPreviousSibling: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item) return false;
+        var parent = this._getItemAtIndex(item.parentIndex);
+        if (parent && parent.container)
+          return aIndex > item.parentIndex + 1;
+      }
+      return aIndex > 0;
+    },
+    getLevel: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item) return 0;
+        return item.level;
+      }
+      return 0;
+    },
+    getImageSrc: function (aIndex, aColumn) {},
+    getProgressMode: function (aIndex, aColumn) {},
+    getCellValue: function (aIndex, aColumn) {},
+    setTree: function (aTree) {},
+    toggleOpenState: function (aIndex) {
+      if (!this._filtered) {
+        var item = this._getItemAtIndex(aIndex);
+        if (!item) return;
+        this._invalidateCache(aIndex);
+        var multiplier = item.open ? -1 : 1;
+        var delta = multiplier * item.cookies.length;
+        this._rowCount += delta;
+        item.open = !item.open;
+        gCookiesWindow._tree.treeBoxObject.rowCountChanged(aIndex + 1, delta);
+        gCookiesWindow._tree.treeBoxObject.invalidateRow(aIndex);
+      }
+    },
+    cycleHeader: function (aColumn) {},
+    selectionChanged: function () {},
+    cycleCell: function (aIndex, aColumn) {},
+    isEditable: function (aIndex, aColumn) {
+      return false;
+    },
+    isSelectable: function (aIndex, aColumn) {
+      return false;
+    },
+    setCellValue: function (aIndex, aColumn, aValue) {},
+    setCellText: function (aIndex, aColumn, aValue) {},
+    performAction: function (aAction) {},
+    performActionOnRow: function (aAction, aIndex) {},
+    performActionOnCell: function (aAction, aindex, aColumn) {}
+  },
+
+  _makeStrippedHost: function (aHost) {
+    var formattedHost = aHost.charAt(0) == "." ? aHost.substring(1, aHost.length) : aHost;
+    return formattedHost.substring(0, 4) == "www." ? formattedHost.substring(4, formattedHost.length) : formattedHost;
+  },
+
+  _addCookie: function (aStrippedHost, aCookie, aHostCount) {
+    if (!(aStrippedHost in this._hosts) || !this._hosts[aStrippedHost]) {
+      this._hosts[aStrippedHost] = { cookies   : [],
+                                     rawHost   : aStrippedHost,
+                                     level     : 0,
+                                     open      : false,
+                                     container : true };
+      this._hostOrder.push(aStrippedHost);
+      ++aHostCount.value;
+    }
+
+    var c = this._makeCookieObject(aStrippedHost, aCookie);
+    this._hosts[aStrippedHost].cookies.push(c);
+  },
+
+  _makeCookieObject: function (aStrippedHost, aCookie) {
+    var host = aCookie.host;
+    var formattedHost = host.charAt(0) == "." ? host.substring(1, host.length) : host;
+    var c = { name            : aCookie.name,
+              value           : aCookie.value,
+              isDomain        : aCookie.isDomain,
+              host            : aCookie.host,
+              rawHost         : aStrippedHost,
+              path            : aCookie.path,
+              isSecure        : aCookie.isSecure,
+              expires         : aCookie.expires,
+              level           : 1,
+              container       : false,
+              originAttributes: aCookie.originAttributes };
+    return c;
+  },
+
+  _loadCookies: function () {
+    var e = this._cm.enumerator;
+    var hostCount = { value: 0 };
+    this._hosts = {};
+    this._hostOrder = [];
+    while (e.hasMoreElements()) {
+      var cookie = e.getNext();
+      if (cookie && cookie instanceof Components.interfaces.nsICookie) {
+        var strippedHost = this._makeStrippedHost(cookie.host);
+        this._addCookie(strippedHost, cookie, hostCount);
+      }
+      else
+        break;
+    }
+    this._view._rowCount = hostCount.value;
+  },
+
+  formatExpiresString: function (aExpires) {
+    if (aExpires) {
+      var date = new Date(1000 * aExpires);
+      return this._ds.FormatDateTime("", this._ds.dateFormatLong,
+                                     this._ds.timeFormatSeconds,
+                                     date.getFullYear(),
+                                     date.getMonth() + 1,
+                                     date.getDate(),
+                                     date.getHours(),
+                                     date.getMinutes(),
+                                     date.getSeconds());
+    }
+    return this._bundle.getString("expireAtEndOfSession");
+  },
+
+  _updateCookieData: function (aItem) {
+    var seln = this._view.selection;
+    var ids = ["name", "value", "host", "path", "isSecure", "expires"];
+    var properties;
+
+    if (aItem && !aItem.container && seln.count > 0) {
+      properties = { name: aItem.name, value: aItem.value, host: aItem.host,
+                     path: aItem.path, expires: this.formatExpiresString(aItem.expires),
+                     isDomain: aItem.isDomain ? this._bundle.getString("domainColon")
+                                              : this._bundle.getString("hostColon"),
+                     isSecure: aItem.isSecure ? this._bundle.getString("forSecureOnly")
+                                              : this._bundle.getString("forAnyConnection") };
+      for (var i = 0; i < ids.length; ++i)
+        document.getElementById(ids[i]).disabled = false;
+    }
+    else {
+      var noneSelected = this._bundle.getString("noCookieSelected");
+      properties = { name: noneSelected, value: noneSelected, host: noneSelected,
+                     path: noneSelected, expires: noneSelected,
+                     isSecure: noneSelected };
+      for (i = 0; i < ids.length; ++i)
+        document.getElementById(ids[i]).disabled = true;
+    }
+    for (var property in properties)
+      document.getElementById(property).value = properties[property];
+  },
+
+  onCookieSelected: function () {
+    var properties, item;
+    var seln = this._tree.view.selection;
+    var hasRows = this._tree.view.rowCount > 0;
+    var hasSelection = seln.count > 0;
+    if (!this._view._filtered)
+      item = this._view._getItemAtIndex(seln.currentIndex);
+    else
+      item = this._view._filterSet[seln.currentIndex];
+
+    this._updateCookieData(item);
+
+    var rangeCount = seln.getRangeCount();
+    var selectedCookieCount = 0;
+    for (var i = 0; i < rangeCount; ++i) {
+      var min = {}; var max = {};
+      seln.getRangeAt(i, min, max);
+      for (var j = min.value; j <= max.value; ++j) {
+        item = this._view._getItemAtIndex(j);
+        if (!item) continue;
+        if (item.container && !item.open)
+          selectedCookieCount += item.cookies.length;
+        else if (!item.container)
+          ++selectedCookieCount;
+      }
+    }
+    var item = this._view._getItemAtIndex(seln.currentIndex);
+    if (item && seln.count == 1 && item.container && item.open)
+      selectedCookieCount += 2;
+
+    let buttonLabel = this._bundle.getString("removeSelectedCookies.label");
+    let removeSelectedCookies = document.getElementById("removeSelectedCookies");
+    removeSelectedCookies.label = PluralForm.get(selectedCookieCount, buttonLabel)
+                                            .replace("#1", selectedCookieCount);
+
+    removeSelectedCookies.disabled = !hasRows || !hasSelection;
+  },
+
+  performDeletion: function gCookiesWindow_performDeletion(deleteItems) {
+    var psvc = Components.classes["@mozilla.org/preferences-service;1"]
+                         .getService(Components.interfaces.nsIPrefBranch);
+    var blockFutureCookies = false;
+    if (psvc.prefHasUserValue("network.cookie.blockFutureCookies"))
+      blockFutureCookies = psvc.getBoolPref("network.cookie.blockFutureCookies");
+    for (var i = 0; i < deleteItems.length; ++i) {
+      var item = deleteItems[i];
+      this._cm.remove(item.host, item.name, item.path,
+                      blockFutureCookies, item.originAttributes);
+    }
+  },
+
+  deleteCookie: function () {
+    // Selection Notes
+    // - Selection always moves to *NEXT* adjacent item unless item
+    //   is last child at a given level in which case it moves to *PREVIOUS*
+    //   item
+    //
+    // Selection Cases (Somewhat Complicated)
+    //
+    // 1) Single cookie selected, host has single child
+    //    v cnn.com
+    //    //// cnn.com ///////////// goksdjf@ ////
+    //    > atwola.com
+    //
+    //    Before SelectedIndex: 1   Before RowCount: 3
+    //    After  SelectedIndex: 0   After  RowCount: 1
+    //
+    // 2) Host selected, host open
+    //    v goats.com ////////////////////////////
+    //         goats.com             sldkkfjl
+    //         goat.scom             flksj133
+    //    > atwola.com
+    //
+    //    Before SelectedIndex: 0   Before RowCount: 4
+    //    After  SelectedIndex: 0   After  RowCount: 1
+    //
+    // 3) Host selected, host closed
+    //    > goats.com ////////////////////////////
+    //    > atwola.com
+    //
+    //    Before SelectedIndex: 0   Before RowCount: 2
+    //    After  SelectedIndex: 0   After  RowCount: 1
+    //
+    // 4) Single cookie selected, host has many children
+    //    v goats.com
+    //         goats.com             sldkkfjl
+    //    //// goats.com /////////// flksjl33 ////
+    //    > atwola.com
+    //
+    //    Before SelectedIndex: 2   Before RowCount: 4
+    //    After  SelectedIndex: 1   After  RowCount: 3
+    //
+    // 5) Single cookie selected, host has many children
+    //    v goats.com
+    //    //// goats.com /////////// flksjl33 ////
+    //         goats.com             sldkkfjl
+    //    > atwola.com
+    //
+    //    Before SelectedIndex: 1   Before RowCount: 4
+    //    After  SelectedIndex: 1   After  RowCount: 3
+    var seln = this._view.selection;
+    var tbo = this._tree.treeBoxObject;
+
+    if (seln.count < 1) return;
+
+    var nextSelected = 0;
+    var rowCountImpact = 0;
+    var deleteItems = [];
+    if (!this._view._filtered) {
+      var ci = seln.currentIndex;
+      nextSelected = ci;
+      var invalidateRow = -1;
+      var item = this._view._getItemAtIndex(ci);
+      if (item.container) {
+        rowCountImpact -= (item.open ? item.cookies.length : 0) + 1;
+        deleteItems = deleteItems.concat(item.cookies);
+        if (!this._view.hasNextSibling(-1, ci))
+          --nextSelected;
+        this._view._removeItemAtIndex(ci);
+      }
+      else {
+        var parent = this._view._getItemAtIndex(item.parentIndex);
+        --rowCountImpact;
+        if (parent.cookies.length == 1) {
+          --rowCountImpact;
+          deleteItems.push(item);
+          if (!this._view.hasNextSibling(-1, ci))
+            --nextSelected;
+          if (!this._view.hasNextSibling(-1, item.parentIndex))
+            --nextSelected;
+          this._view._removeItemAtIndex(item.parentIndex);
+          invalidateRow = item.parentIndex;
+        }
+        else {
+          deleteItems.push(item);
+          if (!this._view.hasNextSibling(-1, ci))
+            --nextSelected;
+          this._view._removeItemAtIndex(ci);
+        }
+      }
+      this._view._rowCount += rowCountImpact;
+      tbo.rowCountChanged(ci, rowCountImpact);
+      if (invalidateRow != -1)
+        tbo.invalidateRow(invalidateRow);
+    }
+    else {
+      var rangeCount = seln.getRangeCount();
+      // Traverse backwards through selections to avoid messing 
+      // up the indices when they are deleted.
+      // See bug 388079.
+      for (var i = rangeCount - 1; i >= 0; --i) {
+        var min = {}; var max = {};
+        seln.getRangeAt(i, min, max);
+        nextSelected = min.value;
+        for (var j = min.value; j <= max.value; ++j) {
+          deleteItems.push(this._view._getItemAtIndex(j));
+          if (!this._view.hasNextSibling(-1, max.value))
+            --nextSelected;
+        }
+        var delta = max.value - min.value + 1;
+        this._view._removeItemAtIndex(min.value, delta);
+        rowCountImpact = -1 * delta;
+        this._view._rowCount += rowCountImpact;
+        tbo.rowCountChanged(min.value, rowCountImpact);
+      }
+    }
+
+    this.performDeletion(deleteItems);
+
+    if (nextSelected < 0)
+      seln.clearSelection();
+    else {
+      seln.select(nextSelected);
+      this._tree.focus();
+    }
+  },
+
+  deleteAllCookies: function () {
+    if (this._view._filtered) {
+      var rowCount = this._view.rowCount;
+      var deleteItems = [];
+      for (var index = 0; index < rowCount; index++) {
+        deleteItems.push(this._view._getItemAtIndex(index));
+      }
+      this._view._removeItemAtIndex(0, rowCount);
+      this._view._rowCount = 0;
+      this._tree.treeBoxObject.rowCountChanged(0, -rowCount);
+      this.performDeletion(deleteItems);
+    }
+    else {
+      this._cm.removeAll();
+    }
+    this._updateRemoveAllButton();
+    this.focusFilterBox();
+  },
+
+  onCookieKeyPress: function (aEvent) {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE
+#ifdef XP_MACOSX
+        || aEvent.keyCode == KeyEvent.DOM_VK_BACK_SPACE
+#endif
+       ) {
+      this.deleteCookie();
+    }
+  },
+
+  _lastSortProperty : "",
+  _lastSortAscending: false,
+  sort: function (aProperty) {
+    var ascending = (aProperty == this._lastSortProperty) ? !this._lastSortAscending : true;
+    // Sort the Non-Filtered Host Collections
+    if (aProperty == "rawHost") {
+      function sortByHost(a, b) {
+        return a.toLowerCase().localeCompare(b.toLowerCase());
+      }
+      this._hostOrder.sort(sortByHost);
+      if (!ascending)
+        this._hostOrder.reverse();
+    }
+
+    function sortByProperty(a, b) {
+      return a[aProperty].toLowerCase().localeCompare(b[aProperty].toLowerCase());
+    }
+    for (var host in this._hosts) {
+      var cookies = this._hosts[host].cookies;
+      cookies.sort(sortByProperty);
+      if (!ascending)
+        cookies.reverse();
+    }
+    // Sort the Filtered List, if in Filtered mode
+    if (this._view._filtered) {
+      this._view._filterSet.sort(sortByProperty);
+      if (!ascending)
+        this._view._filterSet.reverse();
+    }
+
+    // Adjust the Sort Indicator
+    var domainCol = document.getElementById("domainCol");
+    var nameCol = document.getElementById("nameCol");
+    var sortOrderString = ascending ? "ascending" : "descending";
+    if (aProperty == "rawHost") {
+      domainCol.setAttribute("sortDirection", sortOrderString);
+      nameCol.removeAttribute("sortDirection");
+    }
+    else {
+      nameCol.setAttribute("sortDirection", sortOrderString);
+      domainCol.removeAttribute("sortDirection");
+    }
+
+    this._view._invalidateCache(0);
+    this._view.selection.clearSelection();
+    if (this._view.rowCount > 0) {
+      this._view.selection.select(0);
+    }
+    this._tree.treeBoxObject.invalidate();
+    this._tree.treeBoxObject.ensureRowIsVisible(0);
+
+    this._lastSortAscending = ascending;
+    this._lastSortProperty = aProperty;
+  },
+
+  clearFilter: function () {
+    // Revert to single-select in the tree
+    this._tree.setAttribute("seltype", "single");
+
+    // Clear the Tree Display
+    this._view._filtered = false;
+    this._view._rowCount = 0;
+    this._tree.treeBoxObject.rowCountChanged(0, -this._view._filterSet.length);
+    this._view._filterSet = [];
+
+    // Just reload the list to make sure deletions are respected
+    this._loadCookies();
+    this._tree.view = this._view;
+
+    // Restore sort order
+    var sortby = this._lastSortProperty;
+    if (sortby == "") {
+      this._lastSortAscending = false;
+      this.sort("rawHost");
+    }
+    else {
+      this._lastSortAscending = !this._lastSortAscending;
+      this.sort(sortby);
+    }
+
+    // Restore open state
+    for (var i = 0; i < this._openIndices.length; ++i)
+      this._view.toggleOpenState(this._openIndices[i]);
+    this._openIndices = [];
+
+    // Restore selection
+    this._view.selection.clearSelection();
+    for (i = 0; i < this._lastSelectedRanges.length; ++i) {
+      var range = this._lastSelectedRanges[i];
+      this._view.selection.rangedSelect(range.min, range.max, true);
+    }
+    this._lastSelectedRanges = [];
+
+    document.getElementById("cookiesIntro").value = this._bundle.getString("cookiesAll");
+    this._updateRemoveAllButton();
+  },
+
+  _cookieMatchesFilter: function (aCookie) {
+    return aCookie.rawHost.indexOf(this._view._filterValue) != -1 ||
+           aCookie.name.indexOf(this._view._filterValue) != -1 ||
+           aCookie.value.indexOf(this._view._filterValue) != -1;
+  },
+
+  _filterCookies: function (aFilterValue) {
+    this._view._filterValue = aFilterValue;
+    var cookies = [];
+    for (var i = 0; i < gCookiesWindow._hostOrder.length; ++i) { //var host in gCookiesWindow._hosts) {
+      var currHost = gCookiesWindow._hosts[gCookiesWindow._hostOrder[i]]; // gCookiesWindow._hosts[host];
+      if (!currHost) continue;
+      for (var j = 0; j < currHost.cookies.length; ++j) {
+        var cookie = currHost.cookies[j];
+        if (this._cookieMatchesFilter(cookie))
+          cookies.push(cookie);
+      }
+    }
+    return cookies;
+  },
+
+  _lastSelectedRanges: [],
+  _openIndices: [],
+  _saveState: function () {
+    // Save selection
+    var seln = this._view.selection;
+    this._lastSelectedRanges = [];
+    var rangeCount = seln.getRangeCount();
+    for (var i = 0; i < rangeCount; ++i) {
+      var min = {}; var max = {};
+      seln.getRangeAt(i, min, max);
+      this._lastSelectedRanges.push({ min: min.value, max: max.value });
+    }
+
+    // Save open states
+    this._openIndices = [];
+    for (i = 0; i < this._view.rowCount; ++i) {
+      var item = this._view._getItemAtIndex(i);
+      if (item && item.container && item.open)
+        this._openIndices.push(i);
+    }
+  },
+
+  _updateRemoveAllButton: function gCookiesWindow__updateRemoveAllButton() {
+    let removeAllCookies = document.getElementById("removeAllCookies");
+    removeAllCookies.disabled = this._view._rowCount == 0;
+
+    let labelStringID = "removeAllCookies.label";
+    let accessKeyStringID = "removeAllCookies.accesskey";
+    if (this._view._filtered) {
+      labelStringID = "removeAllShownCookies.label";
+      accessKeyStringID = "removeAllShownCookies.accesskey";
+    }
+    removeAllCookies.setAttribute("label", this._bundle.getString(labelStringID));
+    removeAllCookies.setAttribute("accesskey", this._bundle.getString(accessKeyStringID));
+  },
+
+  filter: function () {
+    var filter = document.getElementById("filter").value;
+    if (filter == "") {
+      gCookiesWindow.clearFilter();
+      return;
+    }
+    var view = gCookiesWindow._view;
+    view._filterSet = gCookiesWindow._filterCookies(filter);
+    if (!view._filtered) {
+      // Save Display Info for the Non-Filtered mode when we first
+      // enter Filtered mode.
+      gCookiesWindow._saveState();
+      view._filtered = true;
+    }
+    // Move to multi-select in the tree
+    gCookiesWindow._tree.setAttribute("seltype", "multiple");
+
+    // Clear the display
+    var oldCount = view._rowCount;
+    view._rowCount = 0;
+    gCookiesWindow._tree.treeBoxObject.rowCountChanged(0, -oldCount);
+    // Set up the filtered display
+    view._rowCount = view._filterSet.length;
+    gCookiesWindow._tree.treeBoxObject.rowCountChanged(0, view.rowCount);
+
+    // if the view is not empty then select the first item
+    if (view.rowCount > 0)
+      view.selection.select(0);
+
+    document.getElementById("cookiesIntro").value = gCookiesWindow._bundle.getString("cookiesFiltered");
+    this._updateRemoveAllButton();
+  },
+
+  setFilter: function (aFilterString) {
+    document.getElementById("filter").value = aFilterString;
+    this.filter();
+  },
+
+  focusFilterBox: function () {
+    var filter = document.getElementById("filter");
+    filter.focus();
+    filter.select();
+  },
+
+  onWindowKeyPress: function (aEvent) {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
+      window.close();
+  }
+};
diff --git a/webbrowser/components/preferences/cookies.xul b/webbrowser/components/preferences/cookies.xul
new file mode 100644
index 0000000..60725e9
--- /dev/null
+++ b/webbrowser/components/preferences/cookies.xul
@@ -0,0 +1,106 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?> 
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css" type="text/css"?> 
+
+<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/cookies.dtd" >
+
+<window id="CookiesDialog" windowtype="Browser:Cookies"
+        class="windowDialog" title="&window.title;"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        style="width: &window.width;;"
+        onload="gCookiesWindow.init();"
+        onunload="gCookiesWindow.uninit();"
+        persist="screenX screenY width height"
+        onkeypress="gCookiesWindow.onWindowKeyPress(event);">
+
+  <script src="chrome://browser/content/preferences/cookies.js"/>
+
+  <stringbundle id="bundlePreferences"
+                src="chrome://browser/locale/preferences/preferences.properties"/>
+
+  <keyset>
+    <key key="&windowClose.key;" modifiers="accel" oncommand="window.close();"/>
+    <key key="&focusSearch1.key;" modifiers="accel" oncommand="gCookiesWindow.focusFilterBox();"/>
+    <key key="&focusSearch2.key;" modifiers="accel" oncommand="gCookiesWindow.focusFilterBox();"/>
+  </keyset>
+
+  <vbox flex="1" class="contentPane">
+    <hbox align="center">
+      <label accesskey="&filter.accesskey;" control="filter">&filter.label;</label>
+      <textbox type="search" id="filter" flex="1"
+               aria-controls="cookiesList"
+               oncommand="gCookiesWindow.filter();"/>
+    </hbox>
+    <separator class="thin"/>
+    <label control="cookiesList" id="cookiesIntro" value="&cookiesonsystem.label;"/>
+    <separator class="thin"/>
+    <tree id="cookiesList" flex="1" style="height: 10em;"
+          onkeypress="gCookiesWindow.onCookieKeyPress(event)"
+          onselect="gCookiesWindow.onCookieSelected();"
+          hidecolumnpicker="true" seltype="single">
+      <treecols>
+        <treecol id="domainCol" label="&cookiedomain.label;" flex="2" primary="true"
+                 persist="width" onclick="gCookiesWindow.sort('rawHost');"/>
+        <splitter class="tree-splitter"/>
+        <treecol id="nameCol" label="&cookiename.label;" flex="1"
+                 persist="width"
+                 onclick="gCookiesWindow.sort('name');"/>
+      </treecols>
+      <treechildren id="cookiesChildren"/>
+    </tree>
+    <hbox id="cookieInfoBox">
+      <grid flex="1" id="cookieInfoGrid">
+        <columns>
+          <column/>
+          <column flex="1"/>
+        </columns>
+        <rows>
+          <row align="center">
+            <hbox pack="end"><label id="nameLabel" control="name" value="&props.name.label;"/></hbox>
+            <textbox id="name" readonly="true" class="plain"/>
+          </row>
+          <row align="center">
+            <hbox pack="end"><label id="valueLabel" control="value" value="&props.value.label;"/></hbox>
+            <textbox id="value" readonly="true" class="plain"/>
+          </row>
+          <row align="center">
+            <hbox pack="end"><label id="isDomain" control="host" value="&props.domain.label;"/></hbox>
+            <textbox id="host" readonly="true" class="plain"/>
+          </row>
+          <row align="center">
+            <hbox pack="end"><label id="pathLabel" control="path" value="&props.path.label;"/></hbox>
+            <textbox id="path" readonly="true" class="plain"/>
+          </row>
+          <row align="center">
+            <hbox pack="end"><label id="isSecureLabel" control="isSecure" value="&props.secure.label;"/></hbox>
+            <textbox id="isSecure" readonly="true" class="plain"/>
+          </row>
+          <row align="center">
+            <hbox pack="end"><label id="expiresLabel" control="expires" value="&props.expires.label;"/></hbox>
+            <textbox id="expires" readonly="true" class="plain"/>
+          </row>
+        </rows>
+      </grid>
+    </hbox>
+  </vbox>
+  <hbox align="end">
+    <hbox class="actionButtons" flex="1">
+      <button id="removeSelectedCookies" disabled="true" icon="clear"
+              oncommand="gCookiesWindow.deleteCookie();"/>
+      <button id="removeAllCookies" disabled="true" icon="clear"
+              oncommand="gCookiesWindow.deleteAllCookies();"/>
+      <spacer flex="1"/>
+#ifndef XP_MACOSX
+      <button oncommand="close();" icon="close"
+              label="&button.close.label;" accesskey="&button.close.accesskey;"/>
+#endif
+    </hbox>
+    <resizer type="window" dir="bottomend"/>
+  </hbox>
+</window>
diff --git a/webbrowser/components/preferences/fonts.js b/webbrowser/components/preferences/fonts.js
new file mode 100644
index 0000000..e9f93a2
--- /dev/null
+++ b/webbrowser/components/preferences/fonts.js
@@ -0,0 +1,144 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// browser.display.languageList LOCK ALL when LOCKED
+
+const kDefaultFontType          = "font.default.%LANG%";
+const kFontNameFmtSerif         = "font.name.serif.%LANG%";
+const kFontNameFmtSansSerif     = "font.name.sans-serif.%LANG%";
+const kFontNameFmtMonospace     = "font.name.monospace.%LANG%";
+const kFontNameListFmtSerif     = "font.name-list.serif.%LANG%";
+const kFontNameListFmtSansSerif = "font.name-list.sans-serif.%LANG%";
+const kFontNameListFmtMonospace = "font.name-list.monospace.%LANG%";
+const kFontSizeFmtVariable      = "font.size.variable.%LANG%";
+const kFontSizeFmtFixed         = "font.size.fixed.%LANG%";
+const kFontMinSizeFmt           = "font.minimum-size.%LANG%";
+
+var gFontsDialog = {
+  _selectLanguageGroup: function (aLanguageGroup)
+  {
+    var prefs = [{ format: kDefaultFontType,          type: "string",   element: "defaultFontType", fonttype: null},
+                 { format: kFontNameFmtSerif,         type: "fontname", element: "serif",      fonttype: "serif"       },
+                 { format: kFontNameFmtSansSerif,     type: "fontname", element: "sans-serif", fonttype: "sans-serif"  },
+                 { format: kFontNameFmtMonospace,     type: "fontname", element: "monospace",  fonttype: "monospace"   },
+                 { format: kFontNameListFmtSerif,     type: "unichar",  element: null,         fonttype: "serif"       },
+                 { format: kFontNameListFmtSansSerif, type: "unichar",  element: null,         fonttype: "sans-serif"  },
+                 { format: kFontNameListFmtMonospace, type: "unichar",  element: null,         fonttype: "monospace"   },
+                 { format: kFontSizeFmtVariable,      type: "int",      element: "sizeVar",    fonttype: null          },
+                 { format: kFontSizeFmtFixed,         type: "int",      element: "sizeMono",   fonttype: null          },
+                 { format: kFontMinSizeFmt,           type: "int",      element: "minSize",    fonttype: null          }];
+    var preferences = document.getElementById("fontPreferences");
+    for (var i = 0; i < prefs.length; ++i) {
+      var preference = document.getElementById(prefs[i].format.replace(/%LANG%/, aLanguageGroup));
+      if (!preference) {
+        preference = document.createElement("preference");
+        var name = prefs[i].format.replace(/%LANG%/, aLanguageGroup);
+        preference.id = name;
+        preference.setAttribute("name", name);
+        preference.setAttribute("type", prefs[i].type);
+        preferences.appendChild(preference);
+      }
+      
+      if (!prefs[i].element)
+        continue;
+        
+      var element = document.getElementById(prefs[i].element);
+      if (element) {
+        element.setAttribute("preference", preference.id);
+      
+        if (prefs[i].fonttype)
+          FontBuilder.buildFontList(aLanguageGroup, prefs[i].fonttype, element);
+
+        preference.setElementValue(element);
+      }
+    }
+  },
+  
+  readFontLanguageGroup: function ()
+  {
+    var languagePref = document.getElementById("font.language.group");
+    this._selectLanguageGroup(languagePref.value);
+    return undefined;
+  },
+  
+  readFontSelection: function (aElement)
+  {
+    // Determine the appropriate value to select, for the following cases:
+    // - there is no setting 
+    // - the font selected by the user is no longer present (e.g. deleted from
+    //   fonts folder)
+    var preference = document.getElementById(aElement.getAttribute("preference"));
+    if (preference.value) {
+      var fontItems = aElement.getElementsByAttribute("value", preference.value);
+    
+      // There is a setting that actually is in the list. Respect it.
+      if (fontItems.length > 0)
+        return undefined;
+    }
+    
+    var defaultValue = aElement.firstChild.firstChild.getAttribute("value");
+    var languagePref = document.getElementById("font.language.group");
+    preference = document.getElementById("font.name-list." + aElement.id + "." + languagePref.value);
+    if (!preference || !preference.hasUserValue)
+      return defaultValue;
+    
+    var fontNames = preference.value.split(",");
+    var stripWhitespace = /^\s*(.*)\s*$/;
+    
+    for (var i = 0; i < fontNames.length; ++i) {
+      var fontName = fontNames[i].replace(stripWhitespace, "$1");
+      fontItems = aElement.getElementsByAttribute("value", fontName);
+      if (fontItems.length)
+        break;
+    }
+    if (fontItems.length)
+      return fontItems[0].getAttribute("value");
+    return defaultValue;
+  },
+  
+  readUseDocumentFonts: function ()
+  {
+    var preference = document.getElementById("browser.display.use_document_fonts");
+    return preference.value == 1;
+  },
+  
+  writeUseDocumentFonts: function ()
+  {
+    var useDocumentFonts = document.getElementById("useDocumentFonts");
+    return useDocumentFonts.checked ? 1 : 0;
+  },
+
+  onBeforeAccept: function ()
+  {
+    // Only care in in-content prefs
+    if (!window.frameElement) {
+      return true;
+    }
+
+    let preferences = document.querySelectorAll("preference[id*='font.minimum-size']");
+    // It would be good if we could avoid touching languages the pref pages won't use, but
+    // unfortunately the language group APIs (deducing language groups from language codes)
+    // are C++ - only. So we just check all the things the user touched:
+    // Don't care about anything up to 24px, or if this value is the same as set previously:
+    preferences = Array.filter(preferences, prefEl => {
+      return prefEl.value > 24 && prefEl.value != prefEl.valueFromPreferences;
+    });
+    if (!preferences.length) {
+      return;
+    }
+
+    let strings = document.getElementById("bundlePreferences");
+    let title = strings.getString("veryLargeMinimumFontTitle");
+    let confirmLabel = strings.getString("acceptVeryLargeMinimumFont");
+    let warningMessage = strings.getString("veryLargeMinimumFontWarning");
+    let {Services} = Components.utils.import("resource://gre/modules/Services.jsm", {});
+    let flags = Services.prompt.BUTTON_POS_1 * Services.prompt.BUTTON_TITLE_CANCEL |
+                Services.prompt.BUTTON_POS_0 * Services.prompt.BUTTON_TITLE_IS_STRING |
+                Services.prompt.BUTTON_POS_1_DEFAULT;
+    let buttonChosen = Services.prompt.confirmEx(window, title, warningMessage, flags, confirmLabel, null, "", "", {});
+    return buttonChosen == 0;
+  },
+};
+
diff --git a/webbrowser/components/preferences/fonts.xul b/webbrowser/components/preferences/fonts.xul
new file mode 100644
index 0000000..97c6869
--- /dev/null
+++ b/webbrowser/components/preferences/fonts.xul
@@ -0,0 +1,279 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+#ifdef XP_MACOSX
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css"?>
+#endif
+
+<!DOCTYPE prefwindow SYSTEM "chrome://browser/locale/preferences/fonts.dtd" >
+
+<prefwindow id="FontsDialog" type="child"
+            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+            title="&fontsDialog.title;"
+            dlgbuttons="accept,cancel,help"
+            ondialoghelp="openPrefsHelp()"
+            onbeforeaccept="return gFontsDialog.onBeforeAccept();"
+            style="">
+
+  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
+
+  <prefpane id="FontsDialogPane"
+            class="largeDialogContainer"
+            helpTopic="prefs-fonts-and-colors">
+  
+    <preferences id="fontPreferences">
+      <preference id="font.language.group"  name="font.language.group"  type="wstring"/>
+      <preference id="browser.display.use_document_fonts"
+                  name="browser.display.use_document_fonts"
+                  type="int"/>
+      <preference id="intl.charset.fallback.override" name="intl.charset.fallback.override" type="string"/>
+    </preferences>
+    
+    <stringbundle id="bundlePreferences" src="chrome://browser/locale/preferences/preferences.properties"/>
+    <script type="application/javascript" src="chrome://mozapps/content/preferences/fontbuilder.js"/>
+    <script type="application/javascript" src="chrome://browser/content/preferences/fonts.js"/>
+
+    <!-- Fonts for: [ Language ] -->
+    <groupbox>
+      <caption>
+        <hbox align="center">
+          <label accesskey="&language.accesskey;" control="selectLangs">&language.label;</label>
+        </hbox>
+        <menulist id="selectLangs" preference="font.language.group"
+                  onsyncfrompreference="return gFontsDialog.readFontLanguageGroup();">
+          <menupopup>
+            <menuitem value="ar"              label="&font.langGroup.arabic;"/>
+            <menuitem value="x-armn"          label="&font.langGroup.armenian;"/>
+            <menuitem value="x-beng"          label="&font.langGroup.bengali;"/>
+            <menuitem value="zh-CN"           label="&font.langGroup.simpl-chinese;"/>
+            <menuitem value="zh-HK"           label="&font.langGroup.trad-chinese-hk;"/>
+            <menuitem value="zh-TW"           label="&font.langGroup.trad-chinese;"/>
+            <menuitem value="x-cyrillic"      label="&font.langGroup.cyrillic;"/>
+            <menuitem value="x-devanagari"    label="&font.langGroup.devanagari;"/>
+            <menuitem value="x-ethi"          label="&font.langGroup.ethiopic;"/>
+            <menuitem value="x-geor"          label="&font.langGroup.georgian;"/>
+            <menuitem value="el"              label="&font.langGroup.el;"/>
+            <menuitem value="x-gujr"          label="&font.langGroup.gujarati;"/>
+            <menuitem value="x-guru"          label="&font.langGroup.gurmukhi;"/>
+            <menuitem value="he"              label="&font.langGroup.hebrew;"/>
+            <menuitem value="ja"              label="&font.langGroup.japanese;"/>
+            <menuitem value="x-knda"          label="&font.langGroup.kannada;"/>
+            <menuitem value="x-khmr"          label="&font.langGroup.khmer;"/>
+            <menuitem value="ko"              label="&font.langGroup.korean;"/>
+            <menuitem value="x-western"       label="&font.langGroup.latin;"/>
+            <menuitem value="x-mlym"          label="&font.langGroup.malayalam;"/>
+            <menuitem value="x-orya"          label="&font.langGroup.oriya;"/>
+            <menuitem value="x-sinh"          label="&font.langGroup.sinhala;"/>
+            <menuitem value="x-tamil"         label="&font.langGroup.tamil;"/>
+            <menuitem value="x-telu"          label="&font.langGroup.telugu;"/>
+            <menuitem value="th"              label="&font.langGroup.thai;"/>
+            <menuitem value="x-tibt"          label="&font.langGroup.tibetan;"/>
+            <menuitem value="x-cans"          label="&font.langGroup.canadian;"/>
+            <menuitem value="x-unicode"       label="&font.langGroup.other;"/>
+          </menupopup>
+        </menulist>
+      </caption>
+      
+      <grid>
+        <columns>
+          <column/>
+          <column flex="1"/>
+          <column/>
+          <column/>
+        </columns>
+        
+        <rows>
+          <row>
+            <separator class="thin"/>
+          </row>
+
+          <row align="center">
+            <hbox align="center" pack="end">
+              <label accesskey="&proportional.accesskey;" control="defaultFontType">&proportional.label;</label>
+            </hbox>
+            <menulist id="defaultFontType" flex="1" style="width: 0px;">
+              <menupopup>
+                <menuitem value="serif" label="&useDefaultFontSerif.label;"/>
+                <menuitem value="sans-serif" label="&useDefaultFontSansSerif.label;"/>
+              </menupopup>
+            </menulist>
+            <hbox align="center" pack="end">
+              <label value="&size.label;"
+                     accesskey="&sizeProportional.accesskey;"
+                     control="sizeVar"/>
+            </hbox>  
+            <menulist id="sizeVar">
+              <menupopup>
+                <menuitem value="9" label="9"/>
+                <menuitem value="10" label="10"/>
+                <menuitem value="11" label="11"/>
+                <menuitem value="12" label="12"/>
+                <menuitem value="13" label="13"/>
+                <menuitem value="14" label="14"/>
+                <menuitem value="15" label="15"/>
+                <menuitem value="16" label="16"/>
+                <menuitem value="17" label="17"/>
+                <menuitem value="18" label="18"/>
+                <menuitem value="20" label="20"/>
+                <menuitem value="22" label="22"/>
+                <menuitem value="24" label="24"/>
+                <menuitem value="26" label="26"/>
+                <menuitem value="28" label="28"/>
+                <menuitem value="30" label="30"/>
+                <menuitem value="32" label="32"/>
+                <menuitem value="34" label="34"/>
+                <menuitem value="36" label="36"/>
+                <menuitem value="40" label="40"/>
+                <menuitem value="44" label="44"/>
+                <menuitem value="48" label="48"/>
+                <menuitem value="56" label="56"/>
+                <menuitem value="64" label="64"/>
+                <menuitem value="72" label="72"/>
+              </menupopup>
+            </menulist>
+          </row>
+          <row align="center">
+            <hbox align="center" pack="end">
+              <label accesskey="&serif.accesskey;" control="serif">&serif.label;</label>
+            </hbox>
+            <menulist id="serif" flex="1" style="width: 0px;"
+                      onsyncfrompreference="return gFontsDialog.readFontSelection(document.getElementById('serif'));"/>
+            <spacer/>
+          </row>
+          <row align="center">
+            <hbox align="center" pack="end">
+              <label accesskey="&sans-serif.accesskey;" control="sans-serif">&sans-serif.label;</label>
+            </hbox>
+            <menulist id="sans-serif" flex="1" style="width: 0px;"
+                      onsyncfrompreference="return gFontsDialog.readFontSelection(document.getElementById('sans-serif'));"/>
+            <spacer/>
+          </row>
+          <row align="center">
+            <hbox align="center" pack="end">
+              <label accesskey="&monospace.accesskey;" control="monospace">&monospace.label;</label>
+            </hbox>
+            <menulist id="monospace" flex="1" style="width: 0px;" crop="right"
+                      onsyncfrompreference="return gFontsDialog.readFontSelection(document.getElementById('monospace'));"/>
+            <hbox align="center" pack="end">
+              <label value="&size.label;"
+                     accesskey="&sizeMonospace.accesskey;"
+                     control="sizeMono"/>
+            </hbox>  
+            <menulist id="sizeMono">
+              <menupopup>
+                <menuitem value="9" label="9"/>
+                <menuitem value="10" label="10"/>
+                <menuitem value="11" label="11"/>
+                <menuitem value="12" label="12"/>
+                <menuitem value="13" label="13"/>
+                <menuitem value="14" label="14"/>
+                <menuitem value="15" label="15"/>
+                <menuitem value="16" label="16"/>
+                <menuitem value="17" label="17"/>
+                <menuitem value="18" label="18"/>
+                <menuitem value="20" label="20"/>
+                <menuitem value="22" label="22"/>
+                <menuitem value="24" label="24"/>
+                <menuitem value="26" label="26"/>
+                <menuitem value="28" label="28"/>
+                <menuitem value="30" label="30"/>
+                <menuitem value="32" label="32"/>
+                <menuitem value="34" label="34"/>
+                <menuitem value="36" label="36"/>
+                <menuitem value="40" label="40"/>
+                <menuitem value="44" label="44"/>
+                <menuitem value="48" label="48"/>
+                <menuitem value="56" label="56"/>
+                <menuitem value="64" label="64"/>
+                <menuitem value="72" label="72"/>
+              </menupopup>
+            </menulist>
+          </row>
+        </rows>
+      </grid>
+      <separator class="thin"/>
+      <hbox flex="1">
+        <spacer flex="1"/>
+        <hbox align="center" pack="end">
+          <label accesskey="&minSize.accesskey;" control="minSize">&minSize.label;</label>
+          <menulist id="minSize">
+            <menupopup>
+              <menuitem value="0" label="&minSize.none;"/>
+              <menuitem value="9" label="9"/>
+              <menuitem value="10" label="10"/>
+              <menuitem value="11" label="11"/>
+              <menuitem value="12" label="12"/>
+              <menuitem value="13" label="13"/>
+              <menuitem value="14" label="14"/>
+              <menuitem value="15" label="15"/>
+              <menuitem value="16" label="16"/>
+              <menuitem value="17" label="17"/>
+              <menuitem value="18" label="18"/>
+              <menuitem value="20" label="20"/>
+              <menuitem value="22" label="22"/>
+              <menuitem value="24" label="24"/>
+              <menuitem value="26" label="26"/>
+              <menuitem value="28" label="28"/>
+              <menuitem value="30" label="30"/>
+              <menuitem value="32" label="32"/>
+              <menuitem value="34" label="34"/>
+              <menuitem value="36" label="36"/>
+              <menuitem value="40" label="40"/>
+              <menuitem value="44" label="44"/>
+              <menuitem value="48" label="48"/>
+              <menuitem value="56" label="56"/>
+              <menuitem value="64" label="64"/>
+              <menuitem value="72" label="72"/>
+            </menupopup>
+          </menulist>
+        </hbox>
+      </hbox>
+      <separator/>
+      <separator class="groove"/>
+      <hbox>
+        <checkbox id="useDocumentFonts" 
+                  label="&allowPagesToUse.label;" accesskey="&allowPagesToUse.accesskey;"
+                  preference="browser.display.use_document_fonts"
+                  onsyncfrompreference="return gFontsDialog.readUseDocumentFonts();"
+                  onsynctopreference="return gFontsDialog.writeUseDocumentFonts();"/>
+      </hbox>
+    </groupbox>
+
+    <!-- Character Encoding -->
+    <groupbox>
+      <caption label="&languages.customize.Fallback.grouplabel;"/>
+      <description>&languages.customize.Fallback.desc;</description>
+      <hbox align="center">
+        <label value="&languages.customize.Fallback.label;"
+               accesskey="&languages.customize.Fallback.accesskey;"
+               control="DefaultCharsetList"/>
+        <menulist id="DefaultCharsetList" preference="intl.charset.fallback.override">
+          <menupopup>
+            <menuitem label="&languages.customize.Fallback.auto;"        value="*"/>
+            <menuitem label="&languages.customize.Fallback.utf8;"        value="UTF-8"/>
+            <menuitem label="&languages.customize.Fallback.arabic;"      value="windows-1256"/>
+            <menuitem label="&languages.customize.Fallback.baltic;"      value="windows-1257"/>
+            <menuitem label="&languages.customize.Fallback.ceiso;"       value="ISO-8859-2"/>
+            <menuitem label="&languages.customize.Fallback.cewindows;"   value="windows-1250"/>
+            <menuitem label="&languages.customize.Fallback.simplified;"  value="gbk"/>
+            <menuitem label="&languages.customize.Fallback.traditional;" value="Big5"/>
+            <menuitem label="&languages.customize.Fallback.cyrillic;"    value="windows-1251"/>
+            <menuitem label="&languages.customize.Fallback.greek;"       value="ISO-8859-7"/>
+            <menuitem label="&languages.customize.Fallback.hebrew;"      value="windows-1255"/>
+            <menuitem label="&languages.customize.Fallback.japanese;"    value="Shift_JIS"/>
+            <menuitem label="&languages.customize.Fallback.korean;"      value="EUC-KR"/>
+            <menuitem label="&languages.customize.Fallback.thai;"        value="windows-874"/>
+            <menuitem label="&languages.customize.Fallback.turkish;"     value="windows-1254"/>
+            <menuitem label="&languages.customize.Fallback.vietnamese;"  value="windows-1258"/>
+            <menuitem label="&languages.customize.Fallback.other;"       value="windows-1252"/>
+          </menupopup>
+        </menulist>
+      </hbox>
+    </groupbox>
+  </prefpane>
+</prefwindow>
diff --git a/webbrowser/components/preferences/handlers.css b/webbrowser/components/preferences/handlers.css
new file mode 100644
index 0000000..9a1d474
--- /dev/null
+++ b/webbrowser/components/preferences/handlers.css
@@ -0,0 +1,25 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+richlistitem {
+  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#handler");
+}
+
+richlistitem[selected="true"] {
+  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#handler-selected");
+}
+
+/**
+ * Make the icons appear.
+ * Note: we display the icon box for every item whether or not it has an icon
+ * so the labels of all the items align vertically.
+ */
+.actionsMenu > menupopup > menuitem > .menu-iconic-left {
+  display: -moz-box;
+  min-width: 16px;
+}
+
+listitem.offlineapp {
+  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#offlineapp");
+}
diff --git a/webbrowser/components/preferences/handlers.xml b/webbrowser/components/preferences/handlers.xml
new file mode 100644
index 0000000..5fb915c
--- /dev/null
+++ b/webbrowser/components/preferences/handlers.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE overlay [
+  <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+  <!ENTITY % applicationsDTD SYSTEM "chrome://browser/locale/preferences/applications.dtd">
+  %brandDTD;
+  %applicationsDTD;
+]>
+
+<bindings id="handlerBindings"
+          xmlns="http://www.mozilla.org/xbl"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+          xmlns:xbl="http://www.mozilla.org/xbl">
+
+  <binding id="handler-base" extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
+    <implementation>
+      <property name="type" readonly="true">
+        <getter>
+          return this.getAttribute("type");
+        </getter>
+      </property>
+    </implementation>
+  </binding>
+
+  <binding id="handler" extends="chrome://browser/content/preferences/handlers.xml#handler-base">
+    <content>
+      <xul:hbox flex="1" equalsize="always">
+        <xul:hbox flex="1" align="center" xbl:inherits="tooltiptext=typeDescription">
+          <xul:image src="moz-icon://goat?size=16" class="typeIcon"
+                     xbl:inherits="src=typeIcon" height="16" width="16"/>
+          <xul:label flex="1" crop="end" xbl:inherits="value=typeDescription"/>
+        </xul:hbox>
+        <xul:hbox flex="1" align="center" xbl:inherits="tooltiptext=actionDescription">
+          <xul:image xbl:inherits="src=actionIcon" height="16" width="16" class="actionIcon"/>
+          <xul:label flex="1" crop="end" xbl:inherits="value=actionDescription"/>
+        </xul:hbox>
+      </xul:hbox>
+    </content>
+  </binding>
+
+  <binding id="handler-selected" extends="chrome://browser/content/preferences/handlers.xml#handler-base">
+    <content>
+      <xul:hbox flex="1" equalsize="always">
+        <xul:hbox flex="1" align="center" xbl:inherits="tooltiptext=typeDescription">
+          <xul:image src="moz-icon://goat?size=16" class="typeIcon"
+                     xbl:inherits="src=typeIcon" height="16" width="16"/>
+          <xul:label flex="1" crop="end" xbl:inherits="value=typeDescription"/>
+        </xul:hbox>
+        <xul:hbox flex="1">
+          <xul:menulist class="actionsMenu" flex="1" crop="end" selectedIndex="1"
+                        xbl:inherits="tooltiptext=actionDescription"
+                        oncommand="gApplicationsPane.onSelectAction(event.originalTarget)">
+            <xul:menupopup/>
+          </xul:menulist>
+        </xul:hbox>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <constructor>
+        gApplicationsPane.rebuildActionsMenu();
+      </constructor>
+    </implementation>
+
+  </binding>
+
+  <binding id="offlineapp"
+	   extends="chrome://global/content/bindings/listbox.xml#listitem">
+    <content>
+      <children>
+	<xul:listcell xbl:inherits="label=origin"/>
+	<xul:listcell xbl:inherits="label=usage"/>
+      </children>
+    </content>
+  </binding>
+
+</bindings>
diff --git a/webbrowser/components/preferences/jar.mn b/webbrowser/components/preferences/jar.mn
new file mode 100644
index 0000000..6e143de
--- /dev/null
+++ b/webbrowser/components/preferences/jar.mn
@@ -0,0 +1,44 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+browser.jar:
+* content/browser/preferences/advanced.xul
+* content/browser/preferences/advanced.js
+  content/browser/preferences/applications.xul
+* content/browser/preferences/applications.js
+  content/browser/preferences/applicationManager.xul
+* content/browser/preferences/applicationManager.js
+* content/browser/preferences/colors.xul
+* content/browser/preferences/cookies.xul
+* content/browser/preferences/cookies.js
+  content/browser/preferences/content.xul
+  content/browser/preferences/content.js
+* content/browser/preferences/connection.xul
+  content/browser/preferences/connection.js
+* content/browser/preferences/fonts.xul
+  content/browser/preferences/fonts.js
+  content/browser/preferences/handlers.xml
+  content/browser/preferences/handlers.css
+* content/browser/preferences/languages.xul
+  content/browser/preferences/languages.js
+* content/browser/preferences/main.xul
+  content/browser/preferences/main.js
+  content/browser/preferences/newtaburl.js
+  content/browser/preferences/permissions.xul
+* content/browser/preferences/permissions.js
+* content/browser/preferences/preferences.xul
+  content/browser/preferences/privacy.xul
+  content/browser/preferences/privacy.js
+  content/browser/preferences/sanitize.xul
+  content/browser/preferences/sanitize.js
+  content/browser/preferences/security.xul
+  content/browser/preferences/security.js
+  content/browser/preferences/selectBookmark.xul
+  content/browser/preferences/selectBookmark.js
+#ifdef MOZ_SERVICES_SYNC
+  content/browser/preferences/sync.xul
+  content/browser/preferences/sync.js
+#endif
+* content/browser/preferences/tabs.xul
+* content/browser/preferences/tabs.js
diff --git a/webbrowser/components/preferences/languages.js b/webbrowser/components/preferences/languages.js
new file mode 100644
index 0000000..8d2b394
--- /dev/null
+++ b/webbrowser/components/preferences/languages.js
@@ -0,0 +1,304 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var gLanguagesDialog = {
+
+  _availableLanguagesList : [],
+  _acceptLanguages        : { },
+  
+  _selectedItemID         : null,
+  
+  init: function ()
+  {
+    if (!this._availableLanguagesList.length)
+      this._loadAvailableLanguages();
+  },
+  
+  get _activeLanguages()
+  {
+    return document.getElementById("activeLanguages");
+  },
+  
+  get _availableLanguages()
+  {
+    return document.getElementById("availableLanguages");
+  },
+  
+  _loadAvailableLanguages: function ()
+  {
+    // This is a parser for: resource://gre/res/language.properties
+    // The file is formatted like so:
+    // ab[-cd].accept=true|false
+    //  ab = language
+    //  cd = region
+    var bundleAccepted    = document.getElementById("bundleAccepted");
+    var bundleRegions     = document.getElementById("bundleRegions");
+    var bundleLanguages   = document.getElementById("bundleLanguages");
+    var bundlePreferences = document.getElementById("bundlePreferences");
+
+    function LanguageInfo(aName, aABCD, aIsVisible)
+    {
+      this.name = aName;
+      this.abcd = aABCD;
+      this.isVisible = aIsVisible;
+    }
+
+    // 1) Read the available languages out of language.properties
+    var strings = bundleAccepted.strings;
+    while (strings.hasMoreElements()) {
+      var currString = strings.getNext();
+      if (!(currString instanceof Components.interfaces.nsIPropertyElement))
+        break;
+      
+      var property = currString.key.split("."); // ab[-cd].accept
+      if (property[1] == "accept") {
+        var abCD = property[0];
+        var abCDPairs = abCD.split("-");      // ab[-cd]
+        var useABCDFormat = abCDPairs.length > 1;
+        var ab = useABCDFormat ? abCDPairs[0] : abCD;
+        var cd = useABCDFormat ? abCDPairs[1] : "";
+        if (ab) {
+          var language = "";
+          try {
+            language = bundleLanguages.getString(ab);
+          } 
+          catch (e) { continue; };
+          
+          var region = "";
+          if (useABCDFormat) {
+            try {
+              region = bundleRegions.getString(cd);
+            }
+            catch (e) { continue; }
+          }
+          
+          var name = "";
+          if (useABCDFormat)
+            name = bundlePreferences.getFormattedString("languageRegionCodeFormat", 
+                                                        [language, region, abCD]);
+          else
+            name = bundlePreferences.getFormattedString("languageCodeFormat", 
+                                                        [language, abCD]);
+          
+          if (name && abCD) {
+            var isVisible = currString.value == "true" && 
+                            (!(abCD in this._acceptLanguages) || !this._acceptLanguages[abCD]);
+            var li = new LanguageInfo(name, abCD, isVisible);
+            this._availableLanguagesList.push(li);
+          }
+        }
+      }
+    }
+    this._buildAvailableLanguageList();
+  },
+  
+  _buildAvailableLanguageList: function ()
+  {
+    var availableLanguagesPopup = document.getElementById("availableLanguagesPopup");
+    while (availableLanguagesPopup.hasChildNodes())
+      availableLanguagesPopup.removeChild(availableLanguagesPopup.firstChild);
+      
+    // Sort the list of languages by name
+    this._availableLanguagesList.sort(function (a, b) {
+                                        return a.name.localeCompare(b.name);
+                                      });
+                                  
+    // Load the UI with the data
+    for (var i = 0; i < this._availableLanguagesList.length; ++i) {
+      var abCD = this._availableLanguagesList[i].abcd;
+      if (this._availableLanguagesList[i].isVisible && 
+          (!(abCD in this._acceptLanguages) || !this._acceptLanguages[abCD])) {
+        var menuitem = document.createElement("menuitem");
+        menuitem.id = this._availableLanguagesList[i].abcd;
+        availableLanguagesPopup.appendChild(menuitem);
+        menuitem.setAttribute("label", this._availableLanguagesList[i].name);
+      }
+    }
+  },
+  
+  readAcceptLanguages: function ()
+  {
+    while (this._activeLanguages.hasChildNodes())
+      this._activeLanguages.removeChild(this._activeLanguages.firstChild);
+    
+    var selectedIndex = 0;
+    var preference = document.getElementById("intl.accept_languages");
+    if (preference.value == "") 
+      return undefined;
+    var languages = preference.value.toLowerCase().split(/\s*,\s*/);
+    for (var i = 0; i < languages.length; ++i) {
+      var name = this._getLanguageName(languages[i]);
+      if (!name)
+        name = "[" + languages[i] + "]";
+      var listitem = document.createElement("listitem");
+      listitem.id = languages[i];
+      if (languages[i] == this._selectedItemID)
+        selectedIndex = i;
+      this._activeLanguages.appendChild(listitem);
+      listitem.setAttribute("label", name);
+
+      // Hash this language as an "Active" language so we don't
+      // show it in the list that can be added. 
+      this._acceptLanguages[languages[i]] = true;
+    }
+
+    if (this._activeLanguages.childNodes.length > 0) {
+      this._activeLanguages.ensureIndexIsVisible(selectedIndex);
+      this._activeLanguages.selectedIndex = selectedIndex;
+    }
+
+    return undefined;
+  },
+  
+  writeAcceptLanguages: function ()
+  {
+    return undefined;
+  },
+  
+  onAvailableLanguageSelect: function ()
+  {
+    var addButton = document.getElementById("addButton");
+    addButton.disabled = false;
+    
+    this._availableLanguages.removeAttribute("accesskey");
+  },
+  
+  addLanguage: function ()
+  {
+    var selectedID = this._availableLanguages.selectedItem.id;
+    var preference = document.getElementById("intl.accept_languages");
+    var arrayOfPrefs = preference.value.toLowerCase().split(/\s*,\s*/);
+    for (var i = 0; i < arrayOfPrefs.length; ++i ){
+      if (arrayOfPrefs[i] == selectedID)
+        return;
+    }
+
+    this._selectedItemID = selectedID;
+
+    if (preference.value == "") 
+      preference.value = selectedID;
+    else {
+      arrayOfPrefs.unshift(selectedID);
+      preference.value = arrayOfPrefs.join(",");
+    }
+  
+    this._acceptLanguages[selectedID] = true;
+    this._availableLanguages.selectedItem = null;
+    
+    // Rebuild the available list with the added item removed...
+    this._buildAvailableLanguageList(); 
+    
+    this._availableLanguages.setAttribute("label", this._availableLanguages.getAttribute("label2"));
+  },
+  
+  removeLanguage: function ()
+  {
+    // Build the new preference value string.
+    var languagesArray = [];
+    for (var i = 0; i < this._activeLanguages.childNodes.length; ++i) {
+      var item = this._activeLanguages.childNodes[i];
+      if (!item.selected) 
+        languagesArray.push(item.id);
+      else  
+        this._acceptLanguages[item.id] = false;
+    }
+    var string = languagesArray.join(",");
+
+    // Get the item to select after the remove operation completes.     
+    var selection = this._activeLanguages.selectedItems;
+    var lastSelected = selection[selection.length-1];
+    var selectItem = lastSelected.nextSibling || lastSelected.previousSibling;
+    selectItem = selectItem ? selectItem.id : null;
+    
+    this._selectedItemID = selectItem;
+
+    // Update the preference and force a UI rebuild
+    var preference = document.getElementById("intl.accept_languages");
+    preference.value = string;
+
+    this._buildAvailableLanguageList(); 
+  },
+  
+  _getLanguageName: function (aABCD)
+  {
+    if (!this._availableLanguagesList.length)
+      this._loadAvailableLanguages();
+    for (var i = 0; i < this._availableLanguagesList.length; ++i) {
+      if (aABCD == this._availableLanguagesList[i].abcd) 
+        return this._availableLanguagesList[i].name;
+    }
+    return "";
+  },
+  
+  moveUp: function ()
+  {
+    var selectedItem = this._activeLanguages.selectedItems[0];
+    var previousItem = selectedItem.previousSibling;
+    
+    var string = "";
+    for (var i = 0; i < this._activeLanguages.childNodes.length; ++i) {
+      var item = this._activeLanguages.childNodes[i];
+      string += (i == 0 ? "" : ",");
+      if (item.id == previousItem.id) 
+        string += selectedItem.id;
+      else if (item.id == selectedItem.id)
+        string += previousItem.id;
+      else
+        string += item.id;
+    }
+    
+    this._selectedItemID = selectedItem.id;
+
+    // Update the preference and force a UI rebuild
+    var preference = document.getElementById("intl.accept_languages");
+    preference.value = string;
+  },
+  
+  moveDown: function ()
+  {
+    var selectedItem = this._activeLanguages.selectedItems[0];
+    var nextItem = selectedItem.nextSibling;
+    
+    var string = "";
+    for (var i = 0; i < this._activeLanguages.childNodes.length; ++i) {
+      var item = this._activeLanguages.childNodes[i];
+      string += (i == 0 ? "" : ",");
+      if (item.id == nextItem.id) 
+        string += selectedItem.id;
+      else if (item.id == selectedItem.id)
+        string += nextItem.id;
+      else
+        string += item.id;
+    }
+    
+    this._selectedItemID = selectedItem.id;
+
+    // Update the preference and force a UI rebuild
+    var preference = document.getElementById("intl.accept_languages");
+    preference.value = string;
+  },
+  
+  onLanguageSelect: function ()
+  {
+    var upButton = document.getElementById("up");
+    var downButton = document.getElementById("down");
+    var removeButton = document.getElementById("remove");
+    switch (this._activeLanguages.selectedCount) {
+    case 0:
+      upButton.disabled = downButton.disabled = removeButton.disabled = true;
+      break;
+    case 1:
+      upButton.disabled = this._activeLanguages.selectedIndex == 0;
+      downButton.disabled = this._activeLanguages.selectedIndex == this._activeLanguages.childNodes.length - 1;
+      removeButton.disabled = false;
+      break;
+    default:
+      upButton.disabled = true;
+      downButton.disabled = true;
+      removeButton.disabled = false;
+    }
+  }
+};
+
diff --git a/webbrowser/components/preferences/languages.xul b/webbrowser/components/preferences/languages.xul
new file mode 100644
index 0000000..6fd8232
--- /dev/null
+++ b/webbrowser/components/preferences/languages.xul
@@ -0,0 +1,98 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<!DOCTYPE prefwindow SYSTEM "chrome://browser/locale/preferences/languages.dtd">
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+#ifdef XP_MACOSX
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css"?>
+#endif
+
+<prefwindow id="LanguagesDialog" type="child"
+            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+            title="&languages.customize.Header;"
+            dlgbuttons="accept,cancel,help"
+            ondialoghelp="openPrefsHelp()"
+            style="width: &window.width;;">
+
+  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
+
+  <prefpane id="LanguagesDialogPane"
+            onpaneload="gLanguagesDialog.init();"
+            helpTopic="prefs-languages">
+
+    <preferences>
+      <preference id="intl.accept_languages" name="intl.accept_languages" type="wstring"/>
+      <preference id="pref.browser.language.disable_button.up"
+                  name="pref.browser.language.disable_button.up"
+                  type="bool"/>
+      <preference id="pref.browser.language.disable_button.down"
+                  name="pref.browser.language.disable_button.down"
+                  type="bool"/>
+      <preference id="pref.browser.language.disable_button.remove"
+                  name="pref.browser.language.disable_button.remove"
+                  type="bool"/>
+    </preferences>
+
+    <script type="application/javascript" src="chrome://browser/content/preferences/languages.js"/>
+
+    <stringbundleset id="languageSet">
+      <stringbundle id="bundleRegions"      src="chrome://global/locale/regionNames.properties"/>
+      <stringbundle id="bundleLanguages"    src="chrome://global/locale/languageNames.properties"/>
+      <stringbundle id="bundlePreferences"  src="chrome://browser/locale/preferences/preferences.properties"/>
+      <stringbundle id="bundleAccepted"     src="resource://gre/res/language.properties"/>
+    </stringbundleset>
+
+    <description>&languages.customize.prefLangDescript;</description>
+    <label>&languages.customize.active.label;</label>
+    <grid flex="1">
+      <columns>
+        <column flex="1"/>
+        <column/>
+      </columns>
+      <rows>
+        <row flex="1">
+          <listbox id="activeLanguages" flex="1" rows="6"
+                    seltype="multiple" onselect="gLanguagesDialog.onLanguageSelect();"
+                    preference="intl.accept_languages"
+                    onsyncfrompreference="return gLanguagesDialog.readAcceptLanguages();"
+                    onsynctopreference="return gLanguagesDialog.writeAcceptLanguages();"/>
+          <vbox>
+            <button id="up" class="up" oncommand="gLanguagesDialog.moveUp();" disabled="true"
+                    label="&languages.customize.moveUp.label;"
+                    accesskey="&languages.customize.moveUp.accesskey;"
+                    preference="pref.browser.language.disable_button.up"/>
+            <button id="down" class="down" oncommand="gLanguagesDialog.moveDown();" disabled="true"
+                    label="&languages.customize.moveDown.label;"
+                    accesskey="&languages.customize.moveDown.accesskey;"
+                    preference="pref.browser.language.disable_button.down"/>
+            <button id="remove" oncommand="gLanguagesDialog.removeLanguage();" disabled="true"
+                    label="&languages.customize.deleteButton.label;"
+                    accesskey="&languages.customize.deleteButton.accesskey;"
+                    preference="pref.browser.language.disable_button.remove"/>
+          </vbox>
+        </row>
+        <row>
+          <separator class="thin"/>
+        </row>
+        <row>
+          <menulist id="availableLanguages" oncommand="gLanguagesDialog.onAvailableLanguageSelect();"
+                    label="&languages.customize.selectLanguage.label;"
+                    label2="&languages.customize.selectLanguage.label;">
+            <menupopup id="availableLanguagesPopup"/>
+          </menulist>
+          <button id="addButton" oncommand="gLanguagesDialog.addLanguage();" disabled="true"
+                  label="&languages.customize.addButton.label;"
+                  accesskey="&languages.customize.addButton.accesskey;"/>
+        </row>
+      </rows>
+    </grid>
+    <separator/>
+    <separator/>
+  </prefpane>
+</prefwindow>
+
diff --git a/webbrowser/components/preferences/main.js b/webbrowser/components/preferences/main.js
new file mode 100644
index 0000000..07e09ff
--- /dev/null
+++ b/webbrowser/components/preferences/main.js
@@ -0,0 +1,473 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
+                                  "resource:///modules/DownloadsCommon.jsm");
+
+var gMainPane = {
+  _pane: null,
+
+  /**
+   * Initialization of this.
+   */
+  init: function ()
+  {
+    this._pane = document.getElementById("paneMain");
+
+    // set up the "use current page" label-changing listener
+    this._updateUseCurrentButton();
+    window.addEventListener("focus", this._updateUseCurrentButton.bind(this), false);
+
+    this.updateBrowserStartupLastSession();
+
+    this.setupDownloadsWindowOptions();
+
+    // Notify observers that the UI is now ready
+    Components.classes["@mozilla.org/observer-service;1"]
+              .getService(Components.interfaces.nsIObserverService)
+              .notifyObservers(window, "main-pane-loaded", null);
+  },
+
+  setupDownloadsWindowOptions: function ()
+  {
+    let showWhenDownloading = document.getElementById("showWhenDownloading");
+    let closeWhenDone = document.getElementById("closeWhenDone");
+
+    // These radio buttons should be hidden when the Downloads Panel is enabled.
+    let shouldHide = !DownloadsCommon.useToolkitUI;
+    showWhenDownloading.hidden = shouldHide;
+    closeWhenDone.hidden = shouldHide;
+  },
+
+  // HOME PAGE
+
+  /*
+   * Preferences:
+   *
+   * browser.startup.homepage
+   * - the user's home page, as a string; if the home page is a set of tabs,
+   *   this will be those URLs separated by the pipe character "|"
+   * browser.startup.page
+   * - what page(s) to show when the user starts the application, as an integer:
+   *
+   *     0: a blank page
+   *     1: the home page (as set by the browser.startup.homepage pref)
+   *     2: the last page the user visited (DEPRECATED)
+   *     3: windows and tabs from the last session (a.k.a. session restore)
+   *
+   *   The deprecated option is not exposed in UI; however, if the user has it
+   *   selected and doesn't change the UI for this preference, the deprecated
+   *   option is preserved.
+   */
+
+  syncFromHomePref: function ()
+  {
+    let homePref = document.getElementById("browser.startup.homepage");
+
+    // If the pref is set to about:home, set the value to "" to show the
+    // placeholder text (about:home title).
+    if (homePref.value.toLowerCase() == "about:home")
+      return "";
+
+    // If the pref is actually "", show a blank page. The actual home page
+    // loading code treats them the same, and we don't want the placeholder text
+    // to be shown.
+    if (homePref.value == "")
+      return "about:logopage";
+
+    // Otherwise, show the actual pref value.
+    return undefined;
+  },
+
+  syncToHomePref: function (value)
+  {
+    // If the value is "", use about:home.
+    if (value == "")
+      return "about:home";
+
+    // Otherwise, use the actual textbox value.
+    return undefined;
+  },
+
+  /**
+   * Sets the home page to the current displayed page (or frontmost tab, if the
+   * most recent browser window contains multiple tabs), updating preference
+   * window UI to reflect this.
+   */
+  setHomePageToCurrent: function ()
+  {
+    let homePage = document.getElementById("browser.startup.homepage");
+    let tabs = this._getTabsForHomePage();
+    function getTabURI(t) t.linkedBrowser.currentURI.spec;
+
+    // FIXME Bug 244192: using dangerous "|" joiner!
+    if (tabs.length)
+      homePage.value = tabs.map(getTabURI).join("|");
+  },
+
+  /**
+   * Displays a dialog in which the user can select a bookmark to use as home
+   * page.  If the user selects a bookmark, that bookmark's name is displayed in
+   * UI and the bookmark's address is stored to the home page preference.
+   */
+  setHomePageToBookmark: function ()
+  {
+    var rv = { urls: null, names: null };
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/selectBookmark.xul",
+                                           "resizable", rv);  
+    if (rv.urls && rv.names) {
+      var homePage = document.getElementById("browser.startup.homepage");
+
+      // XXX still using dangerous "|" joiner!
+      homePage.value = rv.urls.join("|");
+    }
+  },
+
+  /**
+   * Switches the "Use Current Page" button between its singular and plural
+   * forms.
+   */
+  _updateUseCurrentButton: function () {
+    let useCurrent = document.getElementById("useCurrent");
+
+    let tabs = this._getTabsForHomePage();
+    if (tabs.length > 1)
+      useCurrent.label = useCurrent.getAttribute("label2");
+    else
+      useCurrent.label = useCurrent.getAttribute("label1");
+
+    // In this case, the button's disabled state is set by preferences.xml.
+    if (document.getElementById
+        ("pref.browser.homepage.disable_button.current_page").locked)
+      return;
+
+    useCurrent.disabled = !tabs.length
+  },
+
+  _getTabsForHomePage: function ()
+  {
+    var win;
+    var tabs = [];
+    if (document.documentElement.instantApply) {
+      const Cc = Components.classes, Ci = Components.interfaces;
+      // If we're in instant-apply mode, use the most recent browser window
+      var wm = Cc["@mozilla.org/appshell/window-mediator;1"]
+                 .getService(Ci.nsIWindowMediator);
+      win = wm.getMostRecentWindow("navigator:browser");
+    }
+    else {
+      win = window.opener;
+    }
+
+    if (win && win.document.documentElement
+                  .getAttribute("windowtype") == "navigator:browser") {
+      // We should only include visible & non-pinned tabs
+      tabs = win.gBrowser.visibleTabs.slice(win.gBrowser._numPinnedTabs);
+    }
+
+    return tabs;
+  },
+
+  /**
+   * Restores the default home page as the user's home page.
+   */
+  restoreDefaultHomePage: function ()
+  {
+    var homePage = document.getElementById("browser.startup.homepage");
+    homePage.value = homePage.defaultValue;
+  },
+
+  // DOWNLOADS
+
+  /*
+   * Preferences:
+   * 
+   * browser.download.showWhenStarting - bool
+   *   True if the Download Manager should be opened when a download is
+   *   started, false if it shouldn't be opened.
+   * browser.download.closeWhenDone - bool
+   *   True if the Download Manager should be closed when all downloads
+   *   complete, false if it should be left open.
+   * browser.download.useDownloadDir - bool
+   *   True - Save files directly to the folder configured via the
+   *   browser.download.folderList preference.
+   *   False - Always ask the user where to save a file and default to 
+   *   browser.download.lastDir when displaying a folder picker dialog.
+   * browser.download.dir - local file handle
+   *   A local folder the user may have selected for downloaded files to be
+   *   saved. Migration of other browser settings may also set this path.
+   *   This folder is enabled when folderList equals 2.
+   * browser.download.lastDir - local file handle
+   *   May contain the last folder path accessed when the user browsed
+   *   via the file save-as dialog. (see contentAreaUtils.js)
+   * browser.download.folderList - int
+   *   Indicates the location users wish to save downloaded files too.
+   *   It is also used to display special file labels when the default
+   *   download location is either the Desktop or the Downloads folder.
+   *   Values:
+   *     0 - The desktop is the default download location.
+   *     1 - The system's downloads folder is the default download location.
+   *     2 - The default download location is elsewhere as specified in
+   *         browser.download.dir.
+   * browser.download.downloadDir
+   *   deprecated.
+   * browser.download.defaultFolder
+   *   deprecated.
+   */
+
+  /**
+   * Updates preferences which depend upon the value of the preference which
+   * determines whether the Downloads manager is opened at the start of a
+   * download.
+   */
+  readShowDownloadsWhenStarting: function ()
+  {
+    this.showDownloadsWhenStartingPrefChanged();
+
+    // don't override the preference's value in UI
+    return undefined;
+  },
+
+  /**
+   * Enables or disables the "close Downloads manager when downloads finished"
+   * preference element, consequently updating the associated UI.
+   */
+  showDownloadsWhenStartingPrefChanged: function ()
+  {
+    var showWhenStartingPref = document.getElementById("browser.download.manager.showWhenStarting");
+    var closeWhenDonePref = document.getElementById("browser.download.manager.closeWhenDone");
+    closeWhenDonePref.disabled = !showWhenStartingPref.value;
+  },
+
+  /**
+   * Enables/disables the folder field and Browse button based on whether a
+   * default download directory is being used.
+   */
+  readUseDownloadDir: function ()
+  {
+    var downloadFolder = document.getElementById("downloadFolder");
+    var chooseFolder = document.getElementById("chooseFolder");
+    var preference = document.getElementById("browser.download.useDownloadDir");
+    downloadFolder.disabled = !preference.value;
+    chooseFolder.disabled = !preference.value;
+
+    // don't override the preference's value in UI
+    return undefined;
+  },
+  
+  /**
+   * Displays a file picker in which the user can choose the location where
+   * downloads are automatically saved, updating preferences and UI in
+   * response to the choice, if one is made.
+   */
+  chooseFolder: function ()
+  {
+    const nsIFilePicker = Components.interfaces.nsIFilePicker;
+    const nsILocalFile = Components.interfaces.nsILocalFile;
+
+    let bundlePreferences = document.getElementById("bundlePreferences");
+    let title = bundlePreferences.getString("chooseDownloadFolderTitle");
+    let folderListPref = document.getElementById("browser.download.folderList");
+    let currentDirPref = this._indexToFolder(folderListPref.value); // file
+    let defDownloads = this._indexToFolder(1); // file
+    let fp = Components.classes["@mozilla.org/filepicker;1"].
+             createInstance(nsIFilePicker);
+    let fpCallback = function fpCallback_done(aResult) {
+      if (aResult == nsIFilePicker.returnOK) {
+        let file = fp.file.QueryInterface(nsILocalFile);
+        let downloadDirPref = document.getElementById("browser.download.dir");
+
+        downloadDirPref.value = file;
+        folderListPref.value = this._folderToIndex(file);
+        // Note, the real prefs will not be updated yet, so dnld manager's
+        // userDownloadsDirectory may not return the right folder after
+        // this code executes. displayDownloadDirPref will be called on
+        // the assignment above to update the UI.
+      }
+    }.bind(this);
+
+    fp.init(window, title, nsIFilePicker.modeGetFolder);
+    fp.appendFilters(nsIFilePicker.filterAll);
+    // First try to open what's currently configured
+    if (currentDirPref && currentDirPref.exists()) {
+      fp.displayDirectory = currentDirPref;
+    } // Try the system's download dir
+    else if (defDownloads && defDownloads.exists()) {
+      fp.displayDirectory = defDownloads;
+    } // Fall back to Desktop
+    else {
+      fp.displayDirectory = this._indexToFolder(0);
+    }
+    fp.open(fpCallback);
+  },
+
+  /**
+   * Initializes the download folder display settings based on the user's 
+   * preferences.
+   */
+  displayDownloadDirPref: function ()
+  {
+    var folderListPref = document.getElementById("browser.download.folderList");
+    var bundlePreferences = document.getElementById("bundlePreferences");
+    var downloadFolder = document.getElementById("downloadFolder");
+    var currentDirPref = document.getElementById("browser.download.dir");
+
+    // Used in defining the correct path to the folder icon.
+    var ios = Components.classes["@mozilla.org/network/io-service;1"]
+                        .getService(Components.interfaces.nsIIOService);
+    var fph = ios.getProtocolHandler("file")
+                 .QueryInterface(Components.interfaces.nsIFileProtocolHandler);
+    var iconUrlSpec;
+      
+    // Display a 'pretty' label or the path in the UI.
+    if (folderListPref.value == 2) {
+      // Custom path selected and is configured
+      downloadFolder.label = this._getDisplayNameOfFile(currentDirPref.value);
+      iconUrlSpec = fph.getURLSpecFromFile(currentDirPref.value);
+    } else if (folderListPref.value == 1) {
+      // 'Downloads'
+      // In 1.5, this pointed to a folder we created called 'My Downloads'
+      // and was available as an option in the 1.5 drop down. On XP this
+      // was in My Documents, on OSX it was in User Docs. In 2.0, we did
+      // away with the drop down option, although the special label was
+      // still supported for the folder if it existed. Because it was
+      // not exposed it was rarely used.
+      // With 3.0, a new desktop folder - 'Downloads' was introduced for
+      // platforms and versions that don't support a default system downloads
+      // folder. See nsDownloadManager for details. 
+      downloadFolder.label = bundlePreferences.getString("downloadsFolderName");
+      iconUrlSpec = fph.getURLSpecFromFile(this._indexToFolder(1));
+    } else {
+      // 'Desktop'
+      downloadFolder.label = bundlePreferences.getString("desktopFolderName");
+      iconUrlSpec = fph.getURLSpecFromFile(this._getDownloadsFolder("Desktop"));
+    }
+    downloadFolder.image = "moz-icon://" + iconUrlSpec + "?size=16";
+    
+    // don't override the preference's value in UI
+    return undefined;
+  },
+
+  /**
+   * Returns the textual path of a folder in readable form.
+   */
+  _getDisplayNameOfFile: function (aFolder)
+  {
+    // TODO: would like to add support for 'Downloads on Macintosh HD'
+    //       for OS X users.
+    return aFolder ? aFolder.path : "";
+  },
+
+  /**
+   * Returns the Downloads folder.  If aFolder is "Desktop", then the Downloads
+   * folder returned is the desktop folder; otherwise, it is a folder whose name
+   * indicates that it is a download folder and whose path is as determined by
+   * the XPCOM directory service via the download manager's attribute 
+   * defaultDownloadsDirectory.
+   *
+   * @throws if aFolder is not "Desktop" or "Downloads"
+   */
+  _getDownloadsFolder: function (aFolder)
+  {
+    switch (aFolder) {
+      case "Desktop":
+        var fileLoc = Components.classes["@mozilla.org/file/directory_service;1"]
+                                    .getService(Components.interfaces.nsIProperties);
+        return fileLoc.get("Desk", Components.interfaces.nsILocalFile);
+      break;
+      case "Downloads":
+        var dnldMgr = Components.classes["@mozilla.org/download-manager;1"]
+                                .getService(Components.interfaces.nsIDownloadManager);
+        return dnldMgr.defaultDownloadsDirectory;
+      break;
+    }
+    throw "ASSERTION FAILED: folder type should be 'Desktop' or 'Downloads'";
+  },
+
+  /**
+   * Determines the type of the given folder.
+   *
+   * @param   aFolder
+   *          the folder whose type is to be determined
+   * @returns integer
+   *          0 if aFolder is the Desktop or is unspecified,
+   *          1 if aFolder is the Downloads folder,
+   *          2 otherwise
+   */
+  _folderToIndex: function (aFolder)
+  {
+    if (!aFolder || aFolder.equals(this._getDownloadsFolder("Desktop")))
+      return 0;
+    else if (aFolder.equals(this._getDownloadsFolder("Downloads")))
+      return 1;
+    return 2;
+  },
+
+  /**
+   * Converts an integer into the corresponding folder.
+   *
+   * @param   aIndex
+   *          an integer
+   * @returns the Desktop folder if aIndex == 0,
+   *          the Downloads folder if aIndex == 1,
+   *          the folder stored in browser.download.dir
+   */
+  _indexToFolder: function (aIndex)
+  {
+    switch (aIndex) {
+      case 0:
+        return this._getDownloadsFolder("Desktop");
+      case 1:
+        return this._getDownloadsFolder("Downloads");
+    }
+    var currentDirPref = document.getElementById("browser.download.dir");
+    return currentDirPref.value;
+  },
+
+  /**
+   * Returns the value for the browser.download.folderList preference.
+   */
+  getFolderListPref: function ()
+  {
+    var folderListPref = document.getElementById("browser.download.folderList");
+    switch (folderListPref.value) {
+      case 0: // Desktop
+      case 1: // Downloads
+        return folderListPref.value;
+      break;
+      case 2: // Custom
+        var currentDirPref = document.getElementById("browser.download.dir");
+        if (currentDirPref.value) {
+          // Resolve to a known location if possible. We are writing out
+          // to prefs on this call, so now would be a good time to do it.
+          return this._folderToIndex(currentDirPref.value);
+        }
+        return 0;
+      break;
+    }
+  },
+
+  /**
+   * Hide/show the "Show my windows and tabs from last time" option based
+   * on the value of the browser.privatebrowsing.autostart pref.
+   */
+  updateBrowserStartupLastSession: function()
+  {
+    let pbAutoStartPref = document.getElementById("browser.privatebrowsing.autostart");
+    let startupPref = document.getElementById("browser.startup.page");
+    let menu = document.getElementById("browserStartupPage");
+    let option = document.getElementById("browserStartupLastSession");
+    if (pbAutoStartPref.value) {
+      option.setAttribute("disabled", "true");
+      if (option.selected) {
+        menu.selectedItem = document.getElementById("browserStartupHomePage");
+      }
+    } else {
+      option.removeAttribute("disabled");
+      startupPref.updateElements(); // select the correct index in the startup menulist
+    }
+  }
+};
diff --git a/webbrowser/components/preferences/main.xul b/webbrowser/components/preferences/main.xul
new file mode 100644
index 0000000..bb51947
--- /dev/null
+++ b/webbrowser/components/preferences/main.xul
@@ -0,0 +1,188 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<!DOCTYPE overlay [
+  <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+  <!ENTITY % mainDTD SYSTEM "chrome://browser/locale/preferences/main.dtd">
+  <!ENTITY % aboutHomeDTD SYSTEM "chrome://browser/locale/aboutHome.dtd">
+  %brandDTD;
+  %mainDTD;
+  %aboutHomeDTD;
+]>
+
+<overlay id="MainPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+           
+  <prefpane id="paneMain" 
+            onpaneload="gMainPane.init();"
+            helpTopic="prefs-main">
+
+    <script type="application/javascript" src="chrome://browser/content/preferences/main.js"/>
+
+    <preferences id="mainPreferences">
+      <!-- XXX Button preferences -->
+
+      <!-- Startup -->
+      <preference id="browser.startup.page"
+                  name="browser.startup.page"
+                  type="int"/>
+      <preference id="browser.startup.homepage"
+                  name="browser.startup.homepage"
+                  type="wstring"/>
+
+      <preference id="pref.browser.homepage.disable_button.current_page"
+                  name="pref.browser.homepage.disable_button.current_page"
+                  type="bool"/>
+      <preference id="pref.browser.homepage.disable_button.bookmark_page"
+                  name="pref.browser.homepage.disable_button.bookmark_page"
+                  type="bool"/>
+      <preference id="pref.browser.homepage.disable_button.restore_default"
+                  name="pref.browser.homepage.disable_button.restore_default"
+                  type="bool"/>
+
+      <preference id="browser.privatebrowsing.autostart"
+                  name="browser.privatebrowsing.autostart"
+                  type="bool"
+                  onchange="gMainPane.updateBrowserStartupLastSession();"/>
+
+      <!-- Downloads -->
+      <preference id="browser.download.manager.showWhenStarting"
+                  name="browser.download.manager.showWhenStarting"
+                  type="bool"
+                  onchange="gMainPane.showDownloadsWhenStartingPrefChanged();"/>
+      <preference id="browser.download.manager.closeWhenDone"
+                  name="browser.download.manager.closeWhenDone"
+                  type="bool"/>
+      <preference id="browser.download.useDownloadDir"
+                  name="browser.download.useDownloadDir"
+                  type="bool"/>
+      <preference id="browser.download.dir"
+                  name="browser.download.dir"
+                  type="file"
+                  onchange="gMainPane.displayDownloadDirPref();"/>
+      <preference id="browser.download.folderList"        name="browser.download.folderList"        type="int"/>
+      <preference id="browser.download.useToolkitUI"      name="browser.download.useToolkitUI"      type="bool" />
+#ifdef XP_WIN
+      <preference id="browser.download.saveZoneInformation" name="browser.download.saveZoneInformation" type="int" />
+#endif
+
+    </preferences>
+    
+    <stringbundle id="bundlePreferences" src="chrome://browser/locale/preferences/preferences.properties"/>
+
+    <!-- Startup -->
+    <groupbox id="startupGroup">
+      <caption label="&startup.label;"/>
+
+      <hbox align="center">
+        <label value="&startupPage.label;" accesskey="&startupPage.accesskey;"
+               control="browserStartupPage"/>
+        <menulist id="browserStartupPage" preference="browser.startup.page">
+          <menupopup>
+            <menuitem label="&startupHomePage.label;"     value="1" id="browserStartupHomePage"/>
+            <menuitem label="&startupBlankPage.label;"    value="0" id="browserStartupBlank"/>
+            <menuitem label="&startupLastSession.label;"  value="3" id="browserStartupLastSession"/>
+          </menupopup>
+        </menulist>
+      </hbox>
+      <separator class="thin"/>
+      <hbox align="center">
+        <label value="&homepage.label;" accesskey="&homepage.accesskey;" control="browserHomePage"/>
+        <textbox id="browserHomePage" class="padded uri-element" flex="1"
+                 type="autocomplete" autocompletesearch="history"
+                 onsyncfrompreference="return gMainPane.syncFromHomePref();"
+                 onsynctopreference="return gMainPane.syncToHomePref(this.value);"
+                 oninput="gNewtabUrl.writeNewtabUrl(null, this.value);"
+                 placeholder="&abouthome.pageTitle;"
+                 preference="browser.startup.homepage"/>
+      </hbox>
+      <hbox align="center" pack="end">
+        <button label="" accesskey="&useCurrentPage.accesskey;"
+                label1="&useCurrentPage.label;"
+                label2="&useMultiple.label;"
+                oncommand="gMainPane.setHomePageToCurrent(); gNewtabUrl.writeNewtabUrl();"
+                id="useCurrent"
+                preference="pref.browser.homepage.disable_button.current_page"/>
+        <button label="&chooseBookmark.label;" accesskey="&chooseBookmark.accesskey;"
+                oncommand="gMainPane.setHomePageToBookmark(); gNewtabUrl.writeNewtabUrl();"
+                id="useBookmark"
+                preference="pref.browser.homepage.disable_button.bookmark_page"/>
+        <button label="&restoreDefault.label;" accesskey="&restoreDefault.accesskey;"
+                oncommand="gMainPane.restoreDefaultHomePage(); gNewtabUrl.writeNewtabUrl();"
+                id="restoreDefaultHomePage"
+                preference="pref.browser.homepage.disable_button.restore_default"/>
+      </hbox>
+    </groupbox>
+
+    <!-- Downloads -->
+    <groupbox id="downloadsGroup">
+      <caption label="&downloads.label;"/>
+
+      <checkbox id="showWhenDownloading" label="&showWhenDownloading.label;"
+                accesskey="&showWhenDownloading.accesskey;"
+                preference="browser.download.manager.showWhenStarting"
+                onsyncfrompreference="return gMainPane.readShowDownloadsWhenStarting();"/>
+      <checkbox id="closeWhenDone" label="&closeWhenDone.label;"
+                accesskey="&closeWhenDone.accesskey;" class="indent"
+                preference="browser.download.manager.closeWhenDone"/>
+
+      <separator class="thin"/>
+
+      <radiogroup id="saveWhere"
+                  preference="browser.download.useDownloadDir"
+                  onsyncfrompreference="return gMainPane.readUseDownloadDir();">
+        <hbox id="saveToRow">
+          <radio id="saveTo" value="true"
+                 label="&saveTo.label;"
+                 accesskey="&saveTo.accesskey;"
+                 aria-labelledby="saveTo downloadFolder"/>
+          <filefield id="downloadFolder" flex="1"
+                     preference="browser.download.folderList"
+                     preference-editable="true"
+                     aria-labelledby="saveTo"
+                     onsyncfrompreference="return gMainPane.displayDownloadDirPref();"
+                     onsynctopreference="return gMainPane.getFolderListPref()"/>
+          <button id="chooseFolder" oncommand="gMainPane.chooseFolder();"
+#ifdef XP_MACOSX
+                  accesskey="&chooseFolderMac.accesskey;"
+                  label="&chooseFolderMac.label;"
+#else
+                  accesskey="&chooseFolderWin.accesskey;"
+                  label="&chooseFolderWin.label;"
+#endif
+                  preference="browser.download.folderList"
+                  onsynctopreference="return gMainPane.getFolderListPref();"/>
+        </hbox>
+        <radio id="alwaysAsk" value="false"
+               label="&alwaysAsk.label;"
+               accesskey="&alwaysAsk.accesskey;"/>
+      </radiogroup>
+#if 0
+<!-- Disabled for now -- ToolkitUI DM is nonfunctional. -->
+      <checkbox id="classicDownloadWindow"
+                preference="browser.download.useToolkitUI"
+                label="&toolkit.classic.download.window.label;" />
+#endif
+#ifdef XP_WIN
+      <hbox align="center">
+        <label id="zoneInfoLabel" control="zoneInfo-menu">&zoneInfo.label;</label>
+        <menulist id="zoneInfo-menu"
+                  preference="browser.download.saveZoneInformation"
+                  sizetopopup="always">
+          <menupopup>
+            <menuitem label="&zoneInfo.never;" value="0" />
+            <menuitem label="&zoneInfo.always;" value="1" />
+            <menuitem label="&zoneInfo.system;" value="2" />
+          </menupopup>
+        </menulist>
+      </hbox>
+#endif
+    </groupbox>
+
+  </prefpane>
+
+</overlay>
diff --git a/webbrowser/components/preferences/moz.build b/webbrowser/components/preferences/moz.build
new file mode 100644
index 0000000..31fddae
--- /dev/null
+++ b/webbrowser/components/preferences/moz.build
@@ -0,0 +1,14 @@
+# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+for var in ('MOZ_APP_NAME', 'MOZ_MACBUNDLE_NAME'):
+    DEFINES[var] = CONFIG[var]
+
+if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'gtk2', 'gtk3', 'cocoa'):
+    DEFINES['HAVE_SHELL_SERVICE'] = 1
+
+JAR_MANIFESTS += ['jar.mn']
\ No newline at end of file
diff --git a/webbrowser/components/preferences/newtaburl.js b/webbrowser/components/preferences/newtaburl.js
new file mode 100644
index 0000000..3c82df8
--- /dev/null
+++ b/webbrowser/components/preferences/newtaburl.js
@@ -0,0 +1,102 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public

+ * License, v. 2.0. If a copy of the MPL was not distributed with this

+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

+

+var gNewtabUrl = {

+  /**

+   * Writes browser.newtab.url with the appropriate value.

+   * If the choice is "my home page", get and sanitize

+   * the browser home page URL to make it suitable for newtab use.

+   *

+   * Called from prefwindow ondialogaccept in preferences.xul,

+   * newtabPage oncommand in tabs.xul, browserHomePage oninput,

+   * useCurrent, useBookmark and restoreDefaultHomePage oncommand

+   * in main.xul to consider instantApply.

+   */

+  writeNewtabUrl: function(newtabUrlChoice, browserHomepageUrl) {

+    try {

+      if (newtabUrlChoice) {

+        if (Services.prefs.getBoolPref("browser.preferences.instantApply")) {

+          newtabUrlChoice = parseInt(newtabUrlChoice);

+        } else {

+          return;

+        }

+      } else {

+        if (this.newtabUrlChoiceIsSet) {

+          newtabUrlChoice = Services.prefs.getIntPref("browser.newtab.choice");

+        } else {

+          newtabUrlChoice = this.getNewtabChoice();

+        }

+      }

+      if (browserHomepageUrl || browserHomepageUrl == "") {

+        if (Services.prefs.getBoolPref("browser.preferences.instantApply")) {

+          if (browserHomepageUrl == "") {

+            browserHomepageUrl = "about:home";

+          }

+        } else {

+          return;

+        }

+      } else {

+        browserHomepageUrl = Services.prefs.getComplexValue("browser.startup.homepage",

+                              Components.interfaces.nsIPrefLocalizedString).data;

+      }

+      let newtabUrlPref = Services.prefs.getCharPref("browser.newtab.url");

+      switch (newtabUrlChoice) {

+        case 1:

+          newtabUrlPref = "about:logopage";

+          break;

+        case 2:

+          newtabUrlPref = Services.prefs.getDefaultBranch("browser.")

+                            .getComplexValue("startup.homepage",

+                              Components.interfaces.nsIPrefLocalizedString).data;

+          break;

+        case 3:

+          // If url is a pipe-delimited set of pages, just take the first one.

+          let newtabUrlSanitizedPref=browserHomepageUrl.split("|")[0];

+          // XXX: do we need extra sanitation here, e.g. for invalid URLs?

+          Services.prefs.setCharPref("browser.newtab.myhome", newtabUrlSanitizedPref);

+          newtabUrlPref = newtabUrlSanitizedPref;

+          break;

+        case 4:

+          newtabUrlPref = "about:newtab";

+          break;

+        default:

+          // In case of any other value it's a custom URL, consider instantApply.

+          if (this.newtabPageCustom) {

+            newtabUrlPref = this.newtabPageCustom;

+          }

+      } 

+      Services.prefs.setCharPref("browser.newtab.url",newtabUrlPref);

+    } catch(e) { console.error(e); }

+  },

+

+  /**

+   * Determines the value of browser.newtab.choice based

+   * on the value of browser.newtab.url

+   *

+   * @returns the value of browser.newtab.choice

+   */

+  getNewtabChoice: function() {

+    let newtabUrlPref = Services.prefs.getCharPref("browser.newtab.url");

+    let browserHomepageUrl = Services.prefs.getComplexValue("browser.startup.homepage",

+                              Components.interfaces.nsIPrefLocalizedString).data;

+    let newtabUrlSanitizedPref = browserHomepageUrl.split("|")[0];

+    let defaultStartupHomepage = Services.prefs.getDefaultBranch("browser.")

+                                  .getComplexValue("startup.homepage",

+                                    Components.interfaces.nsIPrefLocalizedString).data;

+    switch (newtabUrlPref) {

+      case "about:logopage": 

+        return 1;

+      case defaultStartupHomepage:

+        return 2;

+      case newtabUrlSanitizedPref:

+        return 3;

+      case "about:newtab":

+        return 4;

+      default: // Custom URL entered.

+        // We need this to consider instantApply.

+        this.newtabPageCustom = newtabUrlPref;

+        return 0;

+    }

+  }

+};

diff --git a/webbrowser/components/preferences/permissions.js b/webbrowser/components/preferences/permissions.js
new file mode 100644
index 0000000..4b1bf41
--- /dev/null
+++ b/webbrowser/components/preferences/permissions.js
@@ -0,0 +1,463 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const nsIPermissionManager = Components.interfaces.nsIPermissionManager;
+const nsICookiePermission = Components.interfaces.nsICookiePermission;
+
+const NOTIFICATION_FLUSH_PERMISSIONS = "flush-pending-permissions";
+
+function Permission(principal, type, capability)
+{
+  this.principal = principal;
+  this.origin = principal.origin;
+  this.type = type;
+  this.capability = capability;
+}
+
+var gPermissionManager = {
+  _type                 : "",
+  _permissions          : [],
+  _permissionsToAdd     : new Map(),
+  _permissionsToDelete  : new Map(),
+  _bundle               : null,
+  _tree                 : null,
+  _observerRemoved      : false,
+
+  _view: {
+    _rowCount: 0,
+    get rowCount()
+    {
+      return this._rowCount;
+    },
+    getCellText: function (aRow, aColumn)
+    {
+      if (aColumn.id == "siteCol")
+        return gPermissionManager._permissions[aRow].origin;
+      else if (aColumn.id == "statusCol")
+        return gPermissionManager._permissions[aRow].capability;
+      return "";
+    },
+
+    isSeparator: function(aIndex) { return false; },
+    isSorted: function() { return false; },
+    isContainer: function(aIndex) { return false; },
+    setTree: function(aTree){},
+    getImageSrc: function(aRow, aColumn) {},
+    getProgressMode: function(aRow, aColumn) {},
+    getCellValue: function(aRow, aColumn) {},
+    cycleHeader: function(column) {},
+    getRowProperties: function(row){ return ""; },
+    getColumnProperties: function(column){ return ""; },
+    getCellProperties: function(row,column){
+      if (column.element.getAttribute("id") == "siteCol")
+        return "ltr";
+
+      return "";
+    }
+  },
+
+  _getCapabilityString: function (aCapability)
+  {
+    var stringKey = null;
+    switch (aCapability) {
+    case nsIPermissionManager.ALLOW_ACTION:
+      stringKey = "can";
+      break;
+    case nsIPermissionManager.DENY_ACTION:
+      stringKey = "cannot";
+      break;
+    case nsICookiePermission.ACCESS_ALLOW_FIRST_PARTY_ONLY:
+      stringKey = "canAccessFirstParty";
+      break;
+    case nsICookiePermission.ACCESS_SESSION:
+      stringKey = "canSession";
+      break;
+    }
+    return this._bundle.getString(stringKey);
+  },
+
+  addPermission: function (aCapability)
+  {
+    var textbox = document.getElementById("url");
+    var input_url = textbox.value.replace(/^\s*/, ""); // trim any leading space
+    let principal;
+    try {
+      // The origin accessor on the principal object will throw if the
+      // principal doesn't have a canonical origin representation. This will
+      // help catch cases where the URI parser parsed something like
+      // `localhost:8080` as having the scheme `localhost`, rather than being
+      // an invalid URI. A canonical origin representation is required by the
+      // permission manager for storage, so this won't prevent any valid
+      // permissions from being entered by the user.
+      let uri;
+      try {
+        uri = Services.io.newURI(input_url, null, null);
+        principal = Services.scriptSecurityManager.getNoAppCodebasePrincipal(uri);
+        // If we have ended up with an unknown scheme, the following will throw.
+        principal.origin;
+      } catch(ex) {
+        uri = Services.io.newURI("http://" + input_url, null, null);
+        principal = Services.scriptSecurityManager.getNoAppCodebasePrincipal(uri);
+        // If we have ended up with an unknown scheme, the following will throw.
+        principal.origin;
+      }
+    } catch(ex) {
+      var message = this._bundle.getString("invalidURI");
+      var title = this._bundle.getString("invalidURITitle");
+      Services.prompt.alert(window, title, message);
+      return;
+    }
+
+    var capabilityString = this._getCapabilityString(aCapability);
+
+    // check whether the permission already exists, if not, add it
+    let permissionExists = false;
+    let capabilityExists = false;
+    for (var i = 0; i < this._permissions.length; ++i) {
+      if (this._permissions[i].principal.equals(principal)) {
+        permissionExists = true;
+        capabilityExists = this._permissions[i].capability == capabilityString;
+        if (!capabilityExists) {
+          this._permissions[i].capability = capabilityString;
+        }
+        break;
+      }
+    }
+    
+
+    let permissionParams = {principal: principal, type: this._type, capability: aCapability};
+    if (!permissionExists) {
+      this._permissionsToAdd.set(principal.origin, permissionParams);
+      this._addPermission(permissionParams);
+    }
+    else if (!capabilityExists) {
+      this._permissionsToAdd.set(principal.origin, permissionParams);
+      this._handleCapabilityChange();
+    }
+
+    textbox.value = "";
+    textbox.focus();
+
+    // covers a case where the site exists already, so the buttons don't disable
+    this.onHostInput(textbox);
+
+    // enable "remove all" button as needed
+    document.getElementById("removeAllPermissions").disabled = this._permissions.length == 0;
+  },
+
+  _removePermission: function(aPermission)
+  {
+    this._removePermissionFromList(aPermission.principal);
+
+    // If this permission was added during this session, let's remove
+    // it from the pending adds list to prevent calls to the
+    // permission manager.
+    let isNewPermission = this._permissionsToAdd.delete(aPermission.principal.origin);
+
+    if (!isNewPermission) {
+      this._permissionsToDelete.set(aPermission.principal.origin, aPermission);
+    }
+
+  },
+
+  _handleCapabilityChange: function ()
+  {
+    // Re-do the sort, if the status changed from Block to Allow
+    // or vice versa, since if we're sorted on status, we may no
+    // longer be in order.
+    if (this._lastPermissionSortColumn == "statusCol") {
+      this._resortPermissions();
+    }
+    this._tree.treeBoxObject.invalidate();
+  },
+
+  _addPermission: function(aPermission)
+  {
+    this._addPermissionToList(aPermission);
+    ++this._view._rowCount;
+    this._tree.treeBoxObject.rowCountChanged(this._view.rowCount - 1, 1);
+    // Re-do the sort, since we inserted this new item at the end.
+    this._resortPermissions();
+  },
+
+  _resortPermissions: function()
+  {
+    gTreeUtils.sort(this._tree, this._view, this._permissions,
+                    this._lastPermissionSortColumn,
+                    this._permissionsComparator,
+                    this._lastPermissionSortColumn, 
+                    !this._lastPermissionSortAscending); // keep sort direction        
+  },
+
+  onHostInput: function (aSiteField)
+  {
+    document.getElementById("btnSession").disabled = !aSiteField.value;
+    document.getElementById("btnBlock").disabled = !aSiteField.value;
+    document.getElementById("btnAllow").disabled = !aSiteField.value;
+  },
+
+  onWindowKeyPress: function (aEvent)
+  {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
+      window.close();
+  },
+
+  onHostKeyPress: function (aEvent)
+  {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN)
+      document.getElementById("btnAllow").click();
+  },
+
+  onLoad: function ()
+  {
+    this._bundle = document.getElementById("bundlePreferences");
+    var params = window.arguments[0];
+    this.init(params);
+  },
+
+  init: function (aParams)
+  {
+    if (this._type) {
+      // reusing an open dialog, clear the old observer
+      this.uninit();
+    }
+
+    this._type = aParams.permissionType;
+    this._manageCapability = aParams.manageCapability;
+
+    var permissionsText = document.getElementById("permissionsText");
+    while (permissionsText.hasChildNodes())
+      permissionsText.removeChild(permissionsText.firstChild);
+    permissionsText.appendChild(document.createTextNode(aParams.introText));
+
+    document.title = aParams.windowTitle;
+
+    document.getElementById("btnBlock").hidden    = !aParams.blockVisible;
+    document.getElementById("btnSession").hidden  = !aParams.sessionVisible;
+    document.getElementById("btnAllow").hidden    = !aParams.allowVisible;
+
+    var urlFieldVisible = (aParams.blockVisible || aParams.sessionVisible || aParams.allowVisible);
+
+    var urlField = document.getElementById("url");
+    urlField.value = aParams.prefilledHost;
+    urlField.hidden = !urlFieldVisible;
+
+    this.onHostInput(urlField);
+
+    var urlLabel = document.getElementById("urlLabel");
+    urlLabel.hidden = !urlFieldVisible;
+
+    let treecols = document.getElementsByTagName("treecols")[0];
+    treecols.addEventListener("click", event => {
+      if (event.target.nodeName != "treecol" || event.button != 0) {
+        return;
+      }
+
+      let sortField = event.target.getAttribute("data-field-name");
+      if (!sortField) {
+        return;
+      }
+
+      gPermissionManager.onPermissionSort(sortField);
+    });
+
+    Services.obs.notifyObservers(null, NOTIFICATION_FLUSH_PERMISSIONS, this._type);
+    Services.obs.addObserver(this, "perm-changed", false);
+
+    this._loadPermissions();
+
+    urlField.focus();
+  },
+
+  uninit: function ()
+  {
+    if (!this._observerRemoved) {
+      Services.obs.removeObserver(this, "perm-changed");
+
+      this._observerRemoved = true;
+    }
+  },
+
+  observe: function (aSubject, aTopic, aData)
+  {
+    if (aTopic == "perm-changed") {
+      var permission = aSubject.QueryInterface(Components.interfaces.nsIPermission);
+
+      // Ignore unrelated permission types.
+      if (permission.type != this._type)
+        return;
+
+      if (aData == "added") {
+        this._addPermission(permission);
+      }
+      else if (aData == "changed") {
+        for (var i = 0; i < this._permissions.length; ++i) {
+          if (permission.matches(this._permissions[i].principal, true)) {
+            this._permissions[i].capability = this._getCapabilityString(permission.capability);
+            break;
+          }
+        }
+        this._handleCapabilityChange();
+      }
+      else if (aData == "deleted") {
+        this._removePermissionFromList(permission.principal);
+      }
+    }
+  },
+
+  onPermissionSelected: function ()
+  {
+    var hasSelection = this._tree.view.selection.count > 0;
+    var hasRows = this._tree.view.rowCount > 0;
+    document.getElementById("removePermission").disabled = !hasRows || !hasSelection;
+    document.getElementById("removeAllPermissions").disabled = !hasRows;
+  },
+  
+  onPermissionDeleted: function ()
+  {
+    if (!this._view.rowCount)
+      return;
+    var removedPermissions = [];
+    gTreeUtils.deleteSelectedItems(this._tree, this._view, this._permissions, removedPermissions);
+    for (var i = 0; i < removedPermissions.length; ++i) {
+      var p = removedPermissions[i];
+      this._removePermission(p);
+    }
+    document.getElementById("removePermission").disabled = !this._permissions.length;
+    document.getElementById("removeAllPermissions").disabled = !this._permissions.length;
+  },
+  
+  onAllPermissionsDeleted: function ()
+  {
+    if (!this._view.rowCount)
+      return;
+    var removedPermissions = [];
+    gTreeUtils.deleteAll(this._tree, this._view, this._permissions, removedPermissions);
+    for (var i = 0; i < removedPermissions.length; ++i) {
+      var p = removedPermissions[i];
+      this._removePermission(p);
+    }
+    document.getElementById("removePermission").disabled = true;
+    document.getElementById("removeAllPermissions").disabled = true;
+  },
+
+  onPermissionKeyPress: function (aEvent)
+  {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE
+#ifdef XP_MACOSX
+        || aEvent.keyCode == KeyEvent.DOM_VK_BACK_SPACE
+#endif
+       ) {
+      this.onPermissionDeleted();
+    }
+  },
+
+  _lastPermissionSortColumn: "",
+  _lastPermissionSortAscending: false,
+  _permissionsComparator : function (a, b)
+  {
+    return a.toLowerCase().localeCompare(b.toLowerCase());
+  },
+
+  
+  onPermissionSort: function (aColumn)
+  {
+    this._lastPermissionSortAscending = gTreeUtils.sort(this._tree,
+                                                        this._view,
+                                                        this._permissions,
+                                                        aColumn,
+                                                        this._permissionsComparator,
+                                                        this._lastPermissionSortColumn,
+                                                        this._lastPermissionSortAscending);
+    this._lastPermissionSortColumn = aColumn;
+  },
+
+  onApplyChanges: function()
+  {
+    // Stop observing permission changes since we are about
+    // to write out the pending adds/deletes and don't need
+    // to update the UI
+    this.uninit();
+
+    for (let permissionParams of this._permissionsToAdd.values()) {
+      Services.perms.addFromPrincipal(permissionParams.principal, permissionParams.type, permissionParams.capability);
+    }
+
+    for (let p of this._permissionsToDelete.values()) {
+      Services.perms.removeFromPrincipal(p.principal, p.type);
+    }
+
+    window.close();
+  },
+
+  _loadPermissions: function ()
+  {
+    this._tree = document.getElementById("permissionsTree");
+    this._permissions = [];
+
+    // load permissions into a table
+    var count = 0;
+    var enumerator = Services.perms.enumerator;
+    while (enumerator.hasMoreElements()) {
+      var nextPermission = enumerator.getNext().QueryInterface(Components.interfaces.nsIPermission);
+      this._addPermissionToList(nextPermission);
+    }
+
+    this._view._rowCount = this._permissions.length;
+
+    // sort and display the table
+    this._tree.view = this._view;
+    this.onPermissionSort("origin");
+
+    // disable "remove all" button if there are none
+    document.getElementById("removeAllPermissions").disabled = this._permissions.length == 0;
+  },
+
+  _addPermissionToList: function (aPermission)
+  {
+    if (aPermission.type == this._type &&
+        (!this._manageCapability ||
+         (aPermission.capability == this._manageCapability))) {
+
+      var principal = aPermission.principal;
+      var capabilityString = this._getCapabilityString(aPermission.capability);
+      var p = new Permission(principal,
+                             aPermission.type,
+                             capabilityString);
+      this._permissions.push(p);
+    }
+  },
+
+  _removePermissionFromList: function (aPrincipal)
+  {
+    for (let i = 0; i < this._permissions.length; ++i) {
+      if (this._permissions[i].principal.equals(aPrincipal)) {
+        this._permissions.splice(i, 1);
+        this._view._rowCount--;
+        this._tree.treeBoxObject.rowCountChanged(this._view.rowCount - 1, -1);
+        this._tree.treeBoxObject.invalidate();
+        break;
+      }
+    }
+  },
+
+  setOrigin: function (aOrigin)
+  {
+    document.getElementById("url").value = aOrigin;
+  }
+};
+
+function setOrigin(aOrigin)
+{
+  gPermissionManager.setOrigin(aOrigin);
+}
+
+function initWithParams(aParams)
+{
+  gPermissionManager.init(aParams);
+}
+
diff --git a/webbrowser/components/preferences/permissions.xul b/webbrowser/components/preferences/permissions.xul
new file mode 100644
index 0000000..33806cc
--- /dev/null
+++ b/webbrowser/components/preferences/permissions.xul
@@ -0,0 +1,85 @@
+<?xml version="1.0"?>
+
+<!-- -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css" type="text/css"?>
+
+<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/permissions.dtd" >
+
+<window id="PermissionsDialog" class="windowDialog"
+        windowtype="Browser:Permissions"
+        title="&window.title;"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        style="width: &window.width;;"
+        onload="gPermissionManager.onLoad();"
+        onunload="gPermissionManager.uninit();"
+        persist="screenX screenY width height"
+        onkeypress="gPermissionManager.onWindowKeyPress(event);">
+
+  <script src="chrome://global/content/treeUtils.js"/>
+  <script src="chrome://browser/content/preferences/permissions.js"/>
+
+  <stringbundle id="bundlePreferences"
+                src="chrome://browser/locale/preferences/preferences.properties"/>
+
+  <keyset>
+    <key key="&windowClose.key;" modifiers="accel" oncommand="window.close();"/>
+  </keyset>
+  
+  <vbox class="contentPane" flex="1">
+    <description id="permissionsText" control="url"/>
+    <separator class="thin"/>
+    <label id="urlLabel" control="url" value="&address.label;" accesskey="&address.accesskey;"/>
+    <hbox align="start">
+      <textbox id="url" flex="1"
+               oninput="gPermissionManager.onHostInput(event.target);"
+               onkeypress="gPermissionManager.onHostKeyPress(event);"/>
+    </hbox>
+    <hbox pack="end">
+      <button id="btnBlock" disabled="true" label="&block.label;" accesskey="&block.accesskey;"
+              oncommand="gPermissionManager.addPermission(nsIPermissionManager.DENY_ACTION);"/>
+      <button id="btnSession" disabled="true" label="&session.label;" accesskey="&session.accesskey;"
+              oncommand="gPermissionManager.addPermission(nsICookiePermission.ACCESS_SESSION);"/>
+      <button id="btnAllow" disabled="true" label="&allow.label;" default="true" accesskey="&allow.accesskey;"
+              oncommand="gPermissionManager.addPermission(nsIPermissionManager.ALLOW_ACTION);"/>
+    </hbox>
+    <separator class="thin"/>
+    <tree id="permissionsTree" flex="1" style="height: 18em;"
+          hidecolumnpicker="true"
+          onkeypress="gPermissionManager.onPermissionKeyPress(event)"
+          onselect="gPermissionManager.onPermissionSelected();">
+      <treecols>
+        <treecol id="siteCol" label="&treehead.sitename.label;" flex="3"
+                 data-field-name="origin" persist="width"/>
+        <splitter class="tree-splitter"/>
+        <treecol id="statusCol" label="&treehead.status.label;" flex="1"
+                 data-field-name="capability" persist="width"/>
+      </treecols>
+      <treechildren/>
+    </tree>
+  </vbox>
+  <vbox>
+    <hbox class="actionButtons" align="left" flex="1">
+      <button id="removePermission" disabled="true"
+              accesskey="&removepermission.accesskey;"
+              icon="remove" label="&removepermission.label;"
+              oncommand="gPermissionManager.onPermissionDeleted();"/>
+      <button id="removeAllPermissions"
+              icon="clear" label="&removeallpermissions.label;"
+              accesskey="&removeallpermissions.accesskey;"
+              oncommand="gPermissionManager.onAllPermissionsDeleted();"/>
+    </hbox>
+    <spacer flex="1"/>
+    <hbox class="actionButtons" align="right" flex="1">
+      <button oncommand="close();" icon="close"
+              label="&button.cancel.label;" accesskey="&button.cancel.accesskey;" />
+      <button id="btnApplyChanges" oncommand="gPermissionManager.onApplyChanges();" icon="save"
+              label="&button.ok.label;" accesskey="&button.ok.accesskey;"/>
+    </hbox>
+    <resizer type="window" dir="bottomend"/>
+  </vbox>
+</window>
diff --git a/webbrowser/components/preferences/preferences.xul b/webbrowser/components/preferences/preferences.xul
new file mode 100644
index 0000000..a1d9c8c
--- /dev/null
+++ b/webbrowser/components/preferences/preferences.xul
@@ -0,0 +1,92 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<?xml-stylesheet href="chrome://global/skin/global.css"?>
+<?xml-stylesheet href="chrome://mozapps/content/preferences/preferences.css"?>
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css"?>
+
+<!-- XXX This should be in applications.xul, but bug 393953 means putting it
+   - there causes the Applications pane not to work the first time you open
+   - the Preferences dialog in a browsing session, so we work around the problem
+   - by putting it here instead.
+   -->
+<?xml-stylesheet href="chrome://browser/content/preferences/handlers.css"?>
+<?xml-stylesheet href="chrome://browser/skin/preferences/applications.css"?>
+
+<!DOCTYPE prefwindow [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+<!ENTITY % preferencesDTD SYSTEM "chrome://browser/locale/preferences/preferences.dtd">
+%brandDTD;
+%preferencesDTD;
+]>
+
+#ifdef XP_WIN
+#define USE_WIN_TITLE_STYLE
+#endif
+
+#ifdef XP_MACOSX
+<?xul-overlay href="chrome://browser/content/macBrowserOverlay.xul"?>
+#endif
+
+<prefwindow type="prefwindow"
+            id="BrowserPreferences"
+            windowtype="Browser:Preferences"
+            ondialoghelp="openPrefsHelp()"
+#ifdef USE_WIN_TITLE_STYLE
+            title="&prefWindow.titleWin;"
+#else
+#ifdef XP_UNIX
+#ifndef XP_MACOSX
+            title="&prefWindow.titleGNOME;"
+#endif
+#endif
+#endif
+            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+#ifdef USE_WIN_TITLE_STYLE
+            style="&prefWinMinSize.styleWin2;"
+#else
+#ifdef XP_MACOSX
+            style="&prefWinMinSize.styleMac;"
+#else
+            style="&prefWinMinSize.styleGNOME;"
+#endif
+#endif
+            onunload="if (typeof gSecurityPane != 'undefined') gSecurityPane.syncAddonSecurityLevel();"
+            ondialogaccept="gNewtabUrl.writeNewtabUrl();">
+
+    <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
+    <script type="application/javascript" src="chrome://browser/content/preferences/newtaburl.js"/>
+
+    <stringbundle id="bundleBrand" src="chrome://branding/locale/brand.properties"/>
+    <stringbundle id="bundlePreferences"
+                  src="chrome://browser/locale/preferences/preferences.properties"/>
+
+    <prefpane id="paneMain" label="&paneGeneral.title;"
+              src="chrome://browser/content/preferences/main.xul"/>
+    <prefpane id="paneTabs" label="&paneTabs.title;"
+              src="chrome://browser/content/preferences/tabs.xul"/>
+    <prefpane id="paneContent" label="&paneContent.title;"
+              src="chrome://browser/content/preferences/content.xul"/>
+    <prefpane id="paneApplications" label="&paneApplications.title;"
+              src="chrome://browser/content/preferences/applications.xul"/>
+    <prefpane id="panePrivacy" label="&panePrivacy.title;"
+              src="chrome://browser/content/preferences/privacy.xul"/>
+    <prefpane id="paneSecurity" label="&paneSecurity.title;"
+              src="chrome://browser/content/preferences/security.xul"/>
+#ifdef MOZ_SERVICES_SYNC
+    <prefpane id="paneSync" label="&paneSync.title;"
+              src="chrome://browser/content/preferences/sync.xul"/>
+#endif
+    <prefpane id="paneAdvanced" label="&paneAdvanced.title;"
+              src="chrome://browser/content/preferences/advanced.xul"/>
+
+#ifdef XP_MACOSX
+#include ../../base/content/browserMountPoints.inc
+#endif
+
+</prefwindow>
+
diff --git a/webbrowser/components/preferences/privacy.js b/webbrowser/components/preferences/privacy.js
new file mode 100644
index 0000000..e2a871a
--- /dev/null
+++ b/webbrowser/components/preferences/privacy.js
@@ -0,0 +1,485 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+var gPrivacyPane = {
+
+  /**
+   * Whether the use has selected the auto-start private browsing mode in the UI.
+   */
+  _autoStartPrivateBrowsing: false,
+
+  /**
+   * Whether the prompt to restart Firefox should appear when changing the autostart pref.
+   */
+  _shouldPromptForRestart: true,
+
+  /**
+   * Sets up the UI for the number of days of history to keep, and updates the
+   * label of the "Clear Now..." button.
+   * Also restores the previously selected tab or tab index passed as argument.
+   */
+  init: function ()
+  {
+    this._inited = true;
+    var privacyPrefs = document.getElementById("privacyPrefs");
+
+    var extraArgs = window.arguments[1];
+    if (extraArgs && extraArgs["privacyTab"]){
+      privacyPrefs.selectedTab = document.getElementById(extraArgs["privacyTab"]);
+    } else {
+      var preference = document.getElementById("browser.preferences.privacy.selectedTabIndex");
+      if (preference.value !== null)
+        privacyPrefs.selectedIndex = preference.value;
+    }
+  
+    this._updateSanitizeSettingsButton();
+    this.initializeHistoryMode();
+    this.updateHistoryModePane();
+    this.updatePrivacyMicroControls();
+    this.initAutoStartPrivateBrowsingReverter();
+  },
+
+  /**
+   * Stores the identity of the current tab in preferences so that the selected
+   * tab can be persisted between openings of the preferences window.
+   */
+  tabSelectionChanged: function ()
+  {
+    if (!this._inited)
+      return;
+    var privacyPrefs = document.getElementById("privacyPrefs");
+    var preference = document.getElementById("browser.preferences.privacy.selectedTabIndex");
+    preference.valueFromPreferences = privacyPrefs.selectedIndex;
+  },
+  
+  // HISTORY MODE
+
+  /**
+   * The list of preferences which affect the initial history mode settings.
+   * If the auto start private browsing mode pref is active, the initial
+   * history mode would be set to "Don't remember anything".
+   * If all of these preferences have their default values, and the auto-start
+   * private browsing mode is not active, the initial history mode would be
+   * set to "Remember everything".
+   * Otherwise, the initial history mode would be set to "Custom".
+   *
+   * Extensions adding their own preferences can append their IDs to this array if needed.
+   */
+  prefsForDefault: [
+    "places.history.enabled",
+    "browser.formfill.enable",
+    "network.cookie.cookieBehavior",
+    "network.cookie.lifetimePolicy",
+    "privacy.sanitize.sanitizeOnShutdown"
+  ],
+
+  /**
+   * The list of control IDs which are dependent on the auto-start private
+   * browsing setting, such that in "Custom" mode they would be disabled if
+   * the auto-start private browsing checkbox is checked, and enabled otherwise.
+   *
+   * Extensions adding their own controls can append their IDs to this array if needed.
+   */
+  dependentControls: [
+    "rememberHistory",
+    "rememberForms",
+    "keepUntil",
+    "keepCookiesUntil",
+    "alwaysClear",
+    "clearDataSettings"
+  ],
+
+  /**
+   * Check whether all the preferences values are set to their default values
+   *
+   * @param aPrefs an array of pref names to check for
+   * @returns boolean true if all of the prefs are set to their default values,
+   *                  false otherwise
+   */
+  _checkDefaultValues: function(aPrefs) {
+    for (let i = 0; i < aPrefs.length; ++i) {
+      let pref = document.getElementById(aPrefs[i]);
+      if (pref.value != pref.defaultValue)
+        return false;
+    }
+    return true;
+  },
+
+  /**
+   * Initialize the history mode menulist based on the privacy preferences
+   */
+  initializeHistoryMode: function PPP_initializeHistoryMode()
+  {
+    let mode;
+    let getVal = function (aPref)
+      document.getElementById(aPref).value;
+
+    if (this._checkDefaultValues(this.prefsForDefault)) {
+      if (getVal("browser.privatebrowsing.autostart"))
+        mode = "dontremember";
+      else 
+        mode = "remember";
+    }
+    else
+      mode = "custom";
+
+    document.getElementById("historyMode").value = mode;
+  },
+
+  /**
+   * Update the selected pane based on the history mode menulist
+   */
+  updateHistoryModePane: function PPP_updateHistoryModePane()
+  {
+    let selectedIndex = -1;
+    switch (document.getElementById("historyMode").value) {
+    case "remember":
+      selectedIndex = 0;
+      break;
+    case "dontremember":
+      selectedIndex = 1;
+      break;
+    case "custom":
+      selectedIndex = 2;
+      break;
+    }
+    document.getElementById("historyPane").selectedIndex = selectedIndex;
+  },
+
+  /**
+   * Update the private browsing auto-start pref and the history mode
+   * micro-management prefs based on the history mode menulist
+   */
+  updateHistoryModePrefs: function PPP_updateHistoryModePrefs()
+  {
+    let pref = document.getElementById("browser.privatebrowsing.autostart");
+    switch (document.getElementById("historyMode").value) {
+    case "remember":
+      if (pref.value)
+        pref.value = false;
+
+      // select the remember history option
+      document.getElementById("places.history.enabled").value = true;
+
+      // select the remember forms history option
+      document.getElementById("browser.formfill.enable").value = true;
+
+      // select the accept cookies option
+      document.getElementById("network.cookie.cookieBehavior").value = 0;
+      // select the cookie lifetime policy option
+      document.getElementById("network.cookie.lifetimePolicy").value = 0;
+
+      // select the clear on close option
+      document.getElementById("privacy.sanitize.sanitizeOnShutdown").value = false;
+      break;
+    case "dontremember":
+      if (!pref.value)
+        pref.value = true;
+      break;
+    }
+  },
+
+  /**
+   * Update the privacy micro-management controls based on the
+   * value of the private browsing auto-start checkbox.
+   */
+  updatePrivacyMicroControls: function PPP_updatePrivacyMicroControls()
+  {
+    if (document.getElementById("historyMode").value == "custom") {
+      let disabled = this._autoStartPrivateBrowsing =
+        document.getElementById("privateBrowsingAutoStart").checked;
+      this.dependentControls
+          .forEach(function (aElement)
+                   document.getElementById(aElement).disabled = disabled);
+
+      const Ci = Components.interfaces;
+      // adjust the cookie controls status
+      this.readAcceptCookies();
+      let lifetimePolicy = document.getElementById("network.cookie.lifetimePolicy").value;
+      if (lifetimePolicy != Ci.nsICookieService.ACCEPT_NORMALLY &&
+          lifetimePolicy != Ci.nsICookieService.ACCEPT_SESSION &&
+          lifetimePolicy != Ci.nsICookieService.ACCEPT_FOR_N_DAYS) {
+        lifetimePolicy = Ci.nsICookieService.ACCEPT_NORMALLY;
+      }
+      document.getElementById("keepCookiesUntil").value = disabled ? 2 : lifetimePolicy;
+
+      // adjust the checked state of the sanitizeOnShutdown checkbox
+      document.getElementById("alwaysClear").checked = disabled ? false :
+        document.getElementById("privacy.sanitize.sanitizeOnShutdown").value;
+
+      // adjust the checked state of the remember history checkboxes
+      document.getElementById("rememberHistory").checked = disabled ? false :
+        document.getElementById("places.history.enabled").value;
+      document.getElementById("rememberForms").checked = disabled ? false :
+        document.getElementById("browser.formfill.enable").value;
+
+      if (!disabled) {
+        // adjust the Settings button for sanitizeOnShutdown
+        this._updateSanitizeSettingsButton();
+      }
+    }
+  },
+
+  // PRIVATE BROWSING
+
+  /**
+   * Initialize the starting state for the auto-start private browsing mode pref reverter.
+   */
+  initAutoStartPrivateBrowsingReverter: function PPP_initAutoStartPrivateBrowsingReverter()
+  {
+    let mode = document.getElementById("historyMode");
+    let autoStart = document.getElementById("privateBrowsingAutoStart");
+    this._lastMode = mode.selectedIndex;
+    this._lastCheckState = autoStart.hasAttribute('checked');
+  },
+
+  _lastMode: null,
+  _lasCheckState: null,
+  updateAutostart: function PPP_updateAutostart() {
+      let mode = document.getElementById("historyMode");
+      let autoStart = document.getElementById("privateBrowsingAutoStart");
+      let pref = document.getElementById("browser.privatebrowsing.autostart");
+      if ((mode.value == "custom" && this._lastCheckState == autoStart.checked) ||
+          (mode.value == "remember" && !this._lastCheckState) ||
+          (mode.value == "dontremember" && this._lastCheckState)) {
+          // These are all no-op changes, so we don't need to prompt.
+          this._lastMode = mode.selectedIndex;
+          this._lastCheckState = autoStart.hasAttribute('checked');
+          return;
+      }
+
+      if (!this._shouldPromptForRestart) {
+        // We're performing a revert. Just let it happen.
+        return;
+      }
+
+      const Cc = Components.classes, Ci = Components.interfaces;
+      let brandName = document.getElementById("bundleBrand").getString("brandShortName");
+      let bundle = document.getElementById("bundlePreferences");
+      let msg = bundle.getFormattedString(autoStart.checked ?
+                                          "featureEnableRequiresRestart" : "featureDisableRequiresRestart",
+                                          [brandName]);
+      let title = bundle.getFormattedString("shouldRestartTitle", [brandName]);
+      let prompts = Cc["@mozilla.org/embedcomp/prompt-service;1"].getService(Ci.nsIPromptService);
+      let shouldProceed = prompts.confirm(window, title, msg)
+      if (shouldProceed) {
+        let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"]
+                           .createInstance(Ci.nsISupportsPRBool);
+        Services.obs.notifyObservers(cancelQuit, "quit-application-requested",
+                                     "restart");
+        shouldProceed = !cancelQuit.data;
+
+        if (shouldProceed) {
+          pref.value = autoStart.hasAttribute('checked');
+          document.documentElement.acceptDialog();
+          let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"]
+                             .getService(Ci.nsIAppStartup);
+          appStartup.quit(Ci.nsIAppStartup.eAttemptQuit |  Ci.nsIAppStartup.eRestart);
+          return;
+        }
+      }
+
+      this._shouldPromptForRestart = false;
+
+      if (this._lastCheckState) {
+        autoStart.checked = "checked";
+      } else {
+        autoStart.removeAttribute('checked');
+      }
+      mode.selectedIndex = this._lastMode;
+      mode.doCommand();
+
+      this._shouldPromptForRestart = true;
+  },
+
+  // HISTORY
+
+  /*
+   * Preferences:
+   *
+   * places.history.enabled
+   * - whether history is enabled or not
+   * browser.formfill.enable
+   * - true if entries in forms and the search bar should be saved, false
+   *   otherwise
+   */
+
+  // COOKIES
+
+  /*
+   * Preferences:
+   *
+   * network.cookie.cookieBehavior
+   * - determines how the browser should handle cookies:
+   *     0   means enable all cookies
+   *     1   means reject all third party cookies
+   *     2   means disable all cookies
+   *     3   means reject third party cookies unless at least one is already set for the eTLD
+   *         see netwerk/cookie/src/nsCookieService.cpp for details
+   * network.cookie.lifetimePolicy
+   * - determines how long cookies are stored:
+   *     0   means keep cookies until they expire
+   *     2   means keep cookies until the browser is closed
+   */
+
+  /**
+   * Reads the network.cookie.cookieBehavior preference value and
+   * enables/disables the rest of the cookie UI accordingly, returning true
+   * if cookies are enabled.
+   */
+  readAcceptCookies: function ()
+  {
+    var pref = document.getElementById("network.cookie.cookieBehavior");
+    var acceptThirdPartyLabel = document.getElementById("acceptThirdPartyLabel");
+    var acceptThirdPartyMenu = document.getElementById("acceptThirdPartyMenu");
+    var keepUntil = document.getElementById("keepUntil");
+    var menu = document.getElementById("keepCookiesUntil");
+
+    // enable the rest of the UI for anything other than "disable all cookies"
+    var acceptCookies = (pref.value != 2);
+
+    acceptThirdPartyLabel.disabled = acceptThirdPartyMenu.disabled = !acceptCookies;
+    keepUntil.disabled = menu.disabled = this._autoStartPrivateBrowsing || !acceptCookies;
+    
+    return acceptCookies;
+  },
+
+  /**
+   * Enables/disables the "keep until" label and menulist in response to the
+   * "accept cookies" checkbox being checked or unchecked.
+   */
+  writeAcceptCookies: function ()
+  {
+    var accept = document.getElementById("acceptCookies");
+    var acceptThirdPartyMenu = document.getElementById("acceptThirdPartyMenu");
+
+    // if we're enabling cookies, automatically select 'accept third party always'
+    if (accept.checked)
+      acceptThirdPartyMenu.selectedIndex = 0;
+
+    return accept.checked ? 0 : 2;
+  },
+  
+  /**
+   * Converts between network.cookie.cookieBehavior and the third-party cookie UI
+   */
+  readAcceptThirdPartyCookies: function ()
+  {
+    var pref = document.getElementById("network.cookie.cookieBehavior");
+    switch (pref.value)
+    {
+      case 0:
+        return "always";
+      case 1:
+        return "never";
+      case 2:
+        return "never";
+      case 3:
+        return "visited";
+      default:
+        return undefined;
+    }
+  },
+  
+  writeAcceptThirdPartyCookies: function ()
+  {
+    var accept = document.getElementById("acceptThirdPartyMenu").selectedItem;
+    switch (accept.value)
+    {
+      case "always":
+        return 0;
+      case "visited":
+        return 3;
+      case "never":
+        return 1;
+      default:
+        return undefined;
+    }
+  },
+
+  /**
+   * Displays fine-grained, per-site preferences for cookies.
+   */
+  showCookieExceptions: function ()
+  {
+    var bundlePreferences = document.getElementById("bundlePreferences");
+    var params = { blockVisible   : true, 
+                   sessionVisible : true, 
+                   allowVisible   : true, 
+                   prefilledHost  : "", 
+                   permissionType : "cookie",
+                   windowTitle    : bundlePreferences.getString("cookiepermissionstitle"),
+                   introText      : bundlePreferences.getString("cookiepermissionstext") };
+    document.documentElement.openWindow("Browser:Permissions",
+                                        "chrome://browser/content/preferences/permissions.xul",
+                                        "", params);
+  },
+
+  /**
+   * Displays all the user's cookies in a dialog.
+   */  
+  showCookies: function (aCategory)
+  {
+    document.documentElement.openWindow("Browser:Cookies",
+                                        "chrome://browser/content/preferences/cookies.xul",
+                                        "", null);
+  },
+
+  // CLEAR PRIVATE DATA
+
+  /*
+   * Preferences:
+   *
+   * privacy.sanitize.sanitizeOnShutdown
+   * - true if the user's private data is cleared on startup according to the
+   *   Clear Private Data settings, false otherwise
+   */
+
+  /**
+   * Displays the Clear Private Data settings dialog.
+   */
+  showClearPrivateDataSettings: function ()
+  {
+    document.documentElement.openSubDialog("chrome://browser/content/preferences/sanitize.xul",
+                                           "", null);
+  },
+
+
+  /**
+   * Displays a dialog from which individual parts of private data may be
+   * cleared.
+   */
+  clearPrivateDataNow: function (aClearEverything)
+  {
+    var ts = document.getElementById("privacy.sanitize.timeSpan");
+    var timeSpanOrig = ts.value;
+    if (aClearEverything)
+      ts.value = 0;
+
+    const Cc = Components.classes, Ci = Components.interfaces;
+    var glue = Cc["@mozilla.org/browser/browserglue;1"]
+                 .getService(Ci.nsIBrowserGlue);
+    glue.sanitize(window);
+
+    // reset the timeSpan pref
+    if (aClearEverything)
+      ts.value = timeSpanOrig;
+    Services.obs.notifyObservers(null, "clear-private-data", null);
+  },
+
+  /**
+   * Enables or disables the "Settings..." button depending
+   * on the privacy.sanitize.sanitizeOnShutdown preference value
+   */
+  _updateSanitizeSettingsButton: function () {
+    var settingsButton = document.getElementById("clearDataSettings");
+    var sanitizeOnShutdownPref = document.getElementById("privacy.sanitize.sanitizeOnShutdown");
+    
+    settingsButton.disabled = !sanitizeOnShutdownPref.value;
+   }
+
+};
diff --git a/webbrowser/components/preferences/privacy.xul b/webbrowser/components/preferences/privacy.xul
new file mode 100644
index 0000000..d2f8106
--- /dev/null
+++ b/webbrowser/components/preferences/privacy.xul
@@ -0,0 +1,273 @@
+<?xml version="1.0"?>
+
+<!-- -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE overlay [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+<!ENTITY % privacyDTD SYSTEM "chrome://browser/locale/preferences/privacy.dtd">
+%brandDTD;
+%privacyDTD;
+]>
+
+<overlay id="PrivacyPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+         xmlns:html="http://www.w3.org/1999/xhtml">
+
+  <prefpane id="panePrivacy"
+            onpaneload="gPrivacyPane.init();"
+            helpTopic="prefs-privacy">
+
+    <preferences id="privacyPreferences">
+
+      <preference id="browser.preferences.privacy.selectedTabIndex"
+                  name="browser.preferences.privacy.selectedTabIndex"
+                  type="int"/>
+  
+      <!-- Tracking -->
+      <preference id="privacy.donottrackheader.enabled"
+                  name="privacy.donottrackheader.enabled"
+                  type="bool"/>
+
+      <!-- XXX button prefs -->
+      <preference id="pref.privacy.disable_button.cookie_exceptions"
+                  name="pref.privacy.disable_button.cookie_exceptions"
+                  type="bool"/>
+      <preference id="pref.privacy.disable_button.view_cookies"
+                  name="pref.privacy.disable_button.view_cookies"
+                  type="bool"/>
+
+      <!-- Location Bar -->
+      <preference id="browser.urlbar.autocomplete.enabled"
+                  name="browser.urlbar.autocomplete.enabled"
+                  type="bool"/>
+      <preference id="browser.urlbar.suggest.bookmark"
+                  name="browser.urlbar.suggest.bookmark"
+                  type="bool"/>
+      <preference id="browser.urlbar.suggest.history"
+                  name="browser.urlbar.suggest.history"
+                  type="bool"/>
+      <preference id="browser.urlbar.suggest.openpage"
+                  name="browser.urlbar.suggest.openpage"
+                  type="bool"/>
+
+      <!-- History -->
+      <preference id="places.history.enabled"
+                  name="places.history.enabled"
+                  type="bool"/>
+      <preference id="browser.formfill.enable"
+                  name="browser.formfill.enable"
+                  type="bool"/>
+
+      <!-- Cookies -->
+      <preference id="network.cookie.cookieBehavior"      name="network.cookie.cookieBehavior"      type="int"/>
+      <preference id="network.cookie.lifetimePolicy"      name="network.cookie.lifetimePolicy"      type="int"/>
+      <preference id="network.cookie.blockFutureCookies"  name="network.cookie.blockFutureCookies"  type="bool"/>
+
+      <!-- Clear Private Data -->
+      <preference id="privacy.sanitize.sanitizeOnShutdown"
+                  name="privacy.sanitize.sanitizeOnShutdown"
+                  onchange="gPrivacyPane._updateSanitizeSettingsButton();"
+                  type="bool"/>
+      <preference id="privacy.sanitize.timeSpan"
+                  name="privacy.sanitize.timeSpan"
+                  type="int"/>
+
+      <!-- Private Browsing -->
+      <preference id="browser.privatebrowsing.autostart"
+                  name="browser.privatebrowsing.autostart"
+                  onchange="gPrivacyPane.updatePrivacyMicroControls();"
+                  type="bool"/>
+
+    </preferences>
+    
+    <stringbundle id="bundlePreferences" src="chrome://browser/locale/preferences/preferences.properties"/>
+    
+    <script type="application/javascript" src="chrome://browser/content/preferences/privacy.js"/>
+
+    <tabbox id="privacyPrefs" flex="1"
+            onselect="gPrivacyPane.tabSelectionChanged();">
+
+      <tabs id="tabsElement">
+        <tab id="historyTab" label="&history.label;"/>
+        <tab id="trackingTab" label="&tracking.label;"/>
+        <tab id="locationBarTab" label="&locationBar.label;"/>
+      </tabs>
+
+      <tabpanels flex="1">
+
+        <!-- History -->
+        <tabpanel id="historyPanel" orient="vertical">
+        
+          <hbox align="center">
+            <label id="historyModeLabel"
+                   control="historyMode"
+                   accesskey="&historyHeader.pre.accesskey;">&historyHeader.pre.label;</label>
+            <menulist id="historyMode"
+                      oncommand="gPrivacyPane.updateHistoryModePane();
+                                 gPrivacyPane.updateHistoryModePrefs();
+                                 gPrivacyPane.updatePrivacyMicroControls();
+                                 gPrivacyPane.updateAutostart();">
+              <menupopup>
+                <menuitem label="&historyHeader.remember.label;" value="remember"/>
+                <menuitem label="&historyHeader.dontremember.label;" value="dontremember"/>
+                <menuitem label="&historyHeader.custom.label;" value="custom"/>
+              </menupopup>
+            </menulist>
+            <label>&historyHeader.post.label;</label>
+          </hbox>
+
+          <deck id="historyPane">
+            <vbox align="center" id="historyRememberPane">
+              <hbox align="center" flex="1">
+                <spacer flex="1" class="indent"/>
+                <vbox flex="2">
+                  <description>&rememberDescription.label;</description>
+                  <separator/>
+                  <description>&rememberActions.pre.label;<html:a
+                    class="inline-link" href="#"
+                    onclick="gPrivacyPane.clearPrivateDataNow(false); return false;"
+                  >&rememberActions.clearHistory.label;</html:a>&rememberActions.middle.label;<html:a
+                    class="inline-link" href="#"
+                    onclick="gPrivacyPane.showCookies(); return false;"
+                  >&rememberActions.removeCookies.label;</html:a>&rememberActions.post.label;</description>
+                </vbox>
+                <spacer flex="1" class="indent"/>
+              </hbox>
+            </vbox>
+            <vbox align="center" id="historyDontRememberPane">
+              <hbox align="center" flex="1">
+                <spacer flex="1" class="indent"/>
+                <vbox flex="2">
+                  <description>&dontrememberDescription.label;</description>
+                  <separator/>
+                  <description>&dontrememberActions.pre.label;<html:a
+                    class="inline-link" href="#"
+                    onclick="gPrivacyPane.clearPrivateDataNow(true); return false;"
+                  >&dontrememberActions.clearHistory.label;</html:a>&dontrememberActions.post.label;</description>
+                </vbox>
+                <spacer flex="1" class="indent"/>
+              </hbox>
+            </vbox>
+            <vbox id="historyCustomPane">
+              <separator class="thin"/>
+              <checkbox id="privateBrowsingAutoStart" class="indent"
+                        label="&privateBrowsingPermanent2.label;"
+                        accesskey="&privateBrowsingPermanent2.accesskey;"
+                        preference="browser.privatebrowsing.autostart"
+                        oncommand="gPrivacyPane.updateAutostart()"/>
+
+              <vbox class="indent">
+                <vbox class="indent">
+                  <checkbox id="rememberHistory"
+                            label="&rememberHistory2.label;"
+                            accesskey="&rememberHistory2.accesskey;"
+                            preference="places.history.enabled"/>
+                  <checkbox id="rememberForms"
+                            label="&rememberSearchForm.label;"
+                            accesskey="&rememberSearchForm.accesskey;"
+                            preference="browser.formfill.enable"/>
+
+                  <hbox id="cookiesBox">
+                    <checkbox id="acceptCookies" label="&acceptCookies.label;" flex="1"
+                              preference="network.cookie.cookieBehavior"
+                              accesskey="&acceptCookies.accesskey;"
+                              onsyncfrompreference="return gPrivacyPane.readAcceptCookies();"
+                              onsynctopreference="return gPrivacyPane.writeAcceptCookies();"/>
+                    <button id="cookieExceptions" oncommand="gPrivacyPane.showCookieExceptions();"
+                            label="&cookieExceptions.label;" accesskey="&cookieExceptions.accesskey;"
+                            preference="pref.privacy.disable_button.cookie_exceptions"/>
+                  </hbox>
+
+                  <hbox id="acceptThirdPartyRow" class="indent">
+                    <hbox id="acceptThirdPartyBox" align="center">
+                      <label id="acceptThirdPartyLabel" control="acceptThirdPartyMenu"
+                             accesskey="&acceptThirdParty.pre.accesskey;">&acceptThirdParty.pre.label;</label>
+                      <menulist id="acceptThirdPartyMenu" preference="network.cookie.cookieBehavior"
+                      onsyncfrompreference="return gPrivacyPane.readAcceptThirdPartyCookies();"
+                      onsynctopreference="return gPrivacyPane.writeAcceptThirdPartyCookies();">
+                        <menupopup>
+                          <menuitem label="&acceptThirdParty.always.label;" value="always"/>
+                          <menuitem label="&acceptThirdParty.visited.label;" value="visited"/>
+                          <menuitem label="&acceptThirdParty.never.label;" value="never"/>
+                        </menupopup>
+                      </menulist>
+                    </hbox>
+                  </hbox>
+              
+                  <hbox id="keepRow" class="indent">
+                    <hbox id="keepBox" align="center">
+                      <label id="keepUntil"
+                             control="keepCookiesUntil"
+                             accesskey="&keepUntil.accesskey;">&keepUntil.label;</label>
+                      <menulist id="keepCookiesUntil"
+                                preference="network.cookie.lifetimePolicy">
+                        <menupopup>
+                          <menuitem label="&expire.label;" value="0"/>
+                          <menuitem label="&close.label;" value="2"/>
+                        </menupopup>
+                      </menulist>
+                    </hbox>
+                    <hbox flex="1"/>
+                    <button id="showCookiesButton"
+                            label="&showCookies.label;" accesskey="&showCookies.accesskey;"
+                            oncommand="gPrivacyPane.showCookies();"
+                            preference="pref.privacy.disable_button.view_cookies"/>
+                  </hbox>
+
+                  <hbox id="clearDataBox" align="center">
+                    <checkbox id="alwaysClear" flex="1"
+                              preference="privacy.sanitize.sanitizeOnShutdown"
+                              label="&clearOnClose.label;"
+                              accesskey="&clearOnClose.accesskey;"/>
+                    <button id="clearDataSettings" label="&clearOnCloseSettings.label;"
+                            accesskey="&clearOnCloseSettings.accesskey;"
+                            oncommand="gPrivacyPane.showClearPrivateDataSettings();"/>
+                  </hbox>
+                </vbox>
+              </vbox>
+            </vbox>
+          </deck>
+
+        </tabpanel>
+        
+        <!-- Tracking -->
+        <tabpanel id="trackingPanel" orient="vertical">
+
+          <checkbox id="privacyDoNotTrackCheckbox"
+                    label="&dntTrackingNotOkay.label2;"
+                    accesskey="&dntTrackingNotOkay.accesskey;"
+                    preference="privacy.donottrackheader.enabled"/>
+          <separator class="thin"/>
+          <label class="text-link" id="doNotTrackInfo"
+                 href="https://www.mozilla.org/dnt"
+                 value="&doNotTrackInfo.label;"/>
+
+        </tabpanel>
+        
+        <!-- Location Bar -->
+        <tabpanel id="locatioBarPanel" orient="vertical">
+        
+          <label id="locationBarSuggestionLabel">&locbar.suggest.label;</label>
+
+          <vbox id="tabPrefsBox" align="start" flex="1">
+            <checkbox id="historySuggestion" label="&locbar.history.label;"
+                      accesskey="&locbar.history.accesskey;"
+                      preference="browser.urlbar.suggest.history"/>
+            <checkbox id="bookmarkSuggestion" label="&locbar.bookmarks.label;"
+                      accesskey="&locbar.bookmarks.accesskey;"
+                      preference="browser.urlbar.suggest.bookmark"/>
+            <checkbox id="openpageSuggestion" label="&locbar.openpage.label;"
+                      accesskey="&locbar.openpage.accesskey;"
+                      preference="browser.urlbar.suggest.openpage"/>
+          </vbox>
+      
+        </tabpanel>
+
+      </tabpanels>
+    </tabbox>
+  </prefpane>
+
+</overlay>
diff --git a/webbrowser/components/preferences/sanitize.js b/webbrowser/components/preferences/sanitize.js
new file mode 100644
index 0000000..15e6f58
--- /dev/null
+++ b/webbrowser/components/preferences/sanitize.js
@@ -0,0 +1,12 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var gSanitizeDialog = Object.freeze({
+  onClearHistoryChanged: function () {
+    let downloadsPref = document.getElementById("privacy.clearOnShutdown.downloads");
+    let historyPref = document.getElementById("privacy.clearOnShutdown.history");
+    downloadsPref.value = historyPref.value;
+  }
+});
diff --git a/webbrowser/components/preferences/sanitize.xul b/webbrowser/components/preferences/sanitize.xul
new file mode 100644
index 0000000..829b5df
--- /dev/null
+++ b/webbrowser/components/preferences/sanitize.xul
@@ -0,0 +1,108 @@
+<?xml version="1.0"?>
+
+<!-- -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css" type="text/css"?> 
+
+<!DOCTYPE dialog [
+  <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+  <!ENTITY % sanitizeDTD SYSTEM "chrome://browser/locale/sanitize.dtd">
+  %brandDTD;
+  %sanitizeDTD;
+]>
+
+<prefwindow id="SanitizeDialog" type="child"
+            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+            dlgbuttons="accept,cancel,help"
+            ondialoghelp="openPrefsHelp()"
+            style="width: &dialog.width2;;"
+            title="&sanitizePrefs2.title;"
+            onload="gSanitizeDialog.onClearHistoryChanged();">
+
+  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
+  <script type="application/javascript" src="chrome://browser/content/preferences/sanitize.js"/>
+
+  <prefpane id="SanitizeDialogPane"
+            helpTopic="prefs-clear-private-data">
+
+    <preferences>
+      <preference id="privacy.clearOnShutdown.history"               name="privacy.clearOnShutdown.history"               type="bool"
+                  onchange="return gSanitizeDialog.onClearHistoryChanged();"/>
+      <preference id="privacy.clearOnShutdown.formdata"              name="privacy.clearOnShutdown.formdata"              type="bool"/>
+      <preference id="privacy.clearOnShutdown.passwords"             name="privacy.clearOnShutdown.passwords"             type="bool"/>
+      <preference id="privacy.clearOnShutdown.downloads"             name="privacy.clearOnShutdown.downloads"             type="bool"/>
+      <preference id="privacy.clearOnShutdown.cookies"               name="privacy.clearOnShutdown.cookies"               type="bool"/>
+      <preference id="privacy.clearOnShutdown.cache"                 name="privacy.clearOnShutdown.cache"                 type="bool"/>
+      <preference id="privacy.clearOnShutdown.offlineApps"           name="privacy.clearOnShutdown.offlineApps"           type="bool"/>
+      <preference id="privacy.clearOnShutdown.sessions"              name="privacy.clearOnShutdown.sessions"              type="bool"/>
+      <preference id="privacy.clearOnShutdown.siteSettings"          name="privacy.clearOnShutdown.siteSettings"          type="bool"/>
+      <preference id="privacy.clearOnShutdown.connectivityData"      name="privacy.clearOnShutdown.connectivityData"      type="bool"/>
+    </preferences>
+
+    <description>&clearDataSettings2.label;</description>
+
+    <groupbox orient="horizontal">
+      <caption label="&historySection.label;"/>
+      <grid flex="1">
+        <columns>
+          <column style="width: &column.width2;"/>
+          <column flex="1"/>
+        </columns>
+        <rows>
+          <row>
+            <checkbox label="&itemHistoryAndDownloads.label;"
+                      accesskey="&itemHistoryAndDownloads.accesskey;"
+                      preference="privacy.clearOnShutdown.history"/>
+            <checkbox label="&itemCookies.label;"
+                      accesskey="&itemCookies.accesskey;"
+                      preference="privacy.clearOnShutdown.cookies"/>
+          </row>
+          <row>
+            <checkbox label="&itemActiveLogins.label;"
+                      accesskey="&itemActiveLogins.accesskey;"
+                      preference="privacy.clearOnShutdown.sessions"/>
+            <checkbox label="&itemCache.label;"
+                      accesskey="&itemCache.accesskey;"
+                      preference="privacy.clearOnShutdown.cache"/>
+          </row>
+          <row>
+            <checkbox label="&itemFormSearchHistory.label;"
+                      accesskey="&itemFormSearchHistory.accesskey;"
+                      preference="privacy.clearOnShutdown.formdata"/>
+          </row>
+        </rows>
+      </grid>
+    </groupbox>
+    <groupbox orient="horizontal">
+      <caption label="&dataSection.label;"/>
+      <grid flex="1">
+        <columns>
+          <column style="width: &column.width2;"/>
+          <column flex="1"/>
+        </columns>
+        <rows>
+          <row>
+            <checkbox label="&itemPasswords.label;"
+                      accesskey="&itemPasswords.accesskey;"
+                      preference="privacy.clearOnShutdown.passwords"/>
+            <checkbox label="&itemOfflineApps.label;"
+                      accesskey="&itemOfflineApps.accesskey;"
+                      preference="privacy.clearOnShutdown.offlineApps"/>
+          </row>
+          <row>
+            <checkbox label="&itemSitePreferences.label;"
+                      accesskey="&itemSitePreferences.accesskey;"
+                      preference="privacy.clearOnShutdown.siteSettings"/>
+            <checkbox label="&itemConnectivityData.label;"
+                      accesskey="&itemConnectivityData.accesskey;"
+                      preference="privacy.clearOnShutdown.connectivityData"/>
+          </row>
+        </rows>
+      </grid>
+    </groupbox>
+  </prefpane>
+</prefwindow>
diff --git a/webbrowser/components/preferences/security.js b/webbrowser/components/preferences/security.js
new file mode 100644
index 0000000..a0f283d
--- /dev/null
+++ b/webbrowser/components/preferences/security.js
@@ -0,0 +1,251 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+XPCOMUtils.defineLazyModuleGetter(this, "LoginHelper",
+ "resource://gre/modules/LoginHelper.jsm");
+
+Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
+
+var gSecurityPane = {
+  _pane: null,
+
+  /**
+   * Initializes UI.
+   */
+  init: function ()
+  {
+    this._pane = document.getElementById("paneSecurity");
+    this._initMasterPasswordUI();
+  },
+
+  // ADD-ONS
+
+  /*
+   * Preferences:
+   *
+   * xpinstall.whitelist.required
+   * - true if a site must be added to a site whitelist before extensions
+   *   provided by the site may be installed from it, false if the extension
+   *   may be directly installed after a confirmation dialog
+   */
+
+  /**
+   * Enables/disables the add-ons Exceptions button depending on whether
+   * or not add-on installation warnings are displayed.
+   */
+  readWarnAddonInstall: function ()
+  {
+    var warn = document.getElementById("xpinstall.whitelist.required");
+    var exceptions = document.getElementById("addonExceptions");
+
+    exceptions.disabled = !warn.value;
+
+    // don't override the preference value
+    return undefined;
+  },
+
+  /**
+   * Displays the exceptions lists for add-on installation warnings.
+   */
+  showAddonExceptions: function ()
+  {
+    var bundlePrefs = document.getElementById("bundlePreferences");
+
+    var params = this._addonParams;
+    if (!params.windowTitle || !params.introText) {
+      params.windowTitle = bundlePrefs.getString("addons_permissions_title");
+      params.introText = bundlePrefs.getString("addonspermissionstext");
+    }
+
+    document.documentElement.openWindow("Browser:Permissions",
+                                        "chrome://browser/content/preferences/permissions.xul",
+                                        "", params);
+  },
+
+  /**
+   * Parameters for the add-on install permissions dialog.
+   */
+  _addonParams:
+    {
+      blockVisible: false,
+      sessionVisible: false,
+      allowVisible: true,
+      prefilledHost: "",
+      permissionType: "install"
+    },
+
+  /**
+   * Ensures that the blocklist is enabled/disabled appropriately based on level
+   */
+  addonLevelNeedsSync: function()
+  {
+    Services.prefs.setBoolPref("extensions.blocklist.level.updated", true);
+  },
+  // called from preferences window onunload.
+  syncAddonSecurityLevel: function()
+  {
+    if (Services.prefs.getBoolPref("extensions.blocklist.level.updated") == true) {
+      Services.prefs.setBoolPref("extensions.blocklist.level.updated", false);
+      var secLevel = Services.prefs.getIntPref("extensions.blocklist.level");
+      Services.prefs.setBoolPref("extensions.blocklist.enabled",
+                                 !(secLevel == 99));
+    }
+  },
+    
+  // PASSWORDS
+
+  /*
+   * Preferences:
+   *
+   * signon.rememberSignons
+   * - true if passwords are remembered, false otherwise
+   */
+
+  /**
+   * Enables/disables the Exceptions button used to configure sites where
+   * passwords are never saved. When browser is set to start in Private
+   * Browsing mode, the "Remember passwords" UI is useless, so we disable it.
+   */
+  readSavePasswords: function ()
+  {
+    var pref = document.getElementById("signon.rememberSignons");
+    var excepts = document.getElementById("passwordExceptions");
+
+    if (PrivateBrowsingUtils.permanentPrivateBrowsing) {
+      document.getElementById("savePasswords").disabled = true;
+      excepts.disabled = true;
+      return false;
+    } else {
+      excepts.disabled = !pref.value;
+      // don't override pref value in UI
+      return undefined;
+    }
+  },
+
+  /**
+   * Displays a dialog in which the user can view and modify the list of sites
+   * where passwords are never saved.
+   */
+  showPasswordExceptions: function ()
+  {
+    let bundlePrefs = document.getElementById("bundlePreferences");
+    let params = {
+      blockVisible: true,
+      sessionVisible: false,
+      allowVisible: false,
+      hideStatusColumn: true,
+      prefilledHost: "",
+      permissionType: "login-saving",
+      windowTitle: bundlePrefs.getString("savedLoginsExceptions_title"),
+      introText: bundlePrefs.getString("savedLoginsExceptions_desc")
+    };
+
+    document.documentElement.openWindow("Toolkit:PasswordManagerExceptions",
+                                        "chrome://browser/content/preferences/permissions.xul",
+                                        null, params);
+  },
+
+  /**
+   * Initializes master password UI: the "use master password" checkbox, selects
+   * the master password button to show, and enables/disables it as necessary.
+   * The master password is controlled by various bits of NSS functionality, so
+   * the UI for it can't be controlled by the normal preference bindings.
+   */
+  _initMasterPasswordUI: function ()
+  {
+    var noMP = !LoginHelper.isMasterPasswordSet();
+
+    var button = document.getElementById("changeMasterPassword");
+    button.disabled = noMP;
+
+    var checkbox = document.getElementById("useMasterPassword");
+    checkbox.checked = !noMP;
+  },
+
+  /**
+   * Enables/disables the master password button depending on the state of the
+   * "use master password" checkbox, and prompts for master password removal if
+   * one is set.
+   */
+  updateMasterPasswordButton: function ()
+  {
+    var checkbox = document.getElementById("useMasterPassword");
+    var button = document.getElementById("changeMasterPassword");
+    button.disabled = !checkbox.checked;
+
+    // unchecking the checkbox should try to immediately remove the master
+    // password, because it's impossible to non-destructively remove the master
+    // password used to encrypt all the passwords without providing it (by
+    // design), and it would be extremely odd to pop up that dialog when the
+    // user closes the prefwindow and saves his settings
+    if (!checkbox.checked)
+      this._removeMasterPassword();
+    else
+      this.changeMasterPassword();
+
+    this._initMasterPasswordUI();
+  },
+
+  /**
+   * Displays the "remove master password" dialog to allow the user to remove
+   * the current master password.  When the dialog is dismissed, master password
+   * UI is automatically updated.
+   */
+  _removeMasterPassword: function ()
+  {
+    const Cc = Components.classes, Ci = Components.interfaces;
+    var secmodDB = Cc["@mozilla.org/security/pkcs11moduledb;1"].
+                   getService(Ci.nsIPKCS11ModuleDB);
+    if (secmodDB.isFIPSEnabled) {
+      var promptService = Cc["@mozilla.org/embedcomp/prompt-service;1"].
+                          getService(Ci.nsIPromptService);
+      var bundle = document.getElementById("bundlePreferences");
+      promptService.alert(window,
+                          bundle.getString("pw_change_failed_title"),
+                          bundle.getString("pw_change2empty_in_fips_mode"));
+    }
+    else {
+      document.documentElement.openSubDialog("chrome://mozapps/content/preferences/removemp.xul",
+                                             "", null);
+    }
+    this._initMasterPasswordUI();
+  },
+
+  /**
+   * Displays a dialog in which the master password may be changed.
+   */
+  changeMasterPassword: function ()
+  {
+    document.documentElement.openSubDialog("chrome://mozapps/content/preferences/changemp.xul",
+                                           "", null);
+    this._initMasterPasswordUI();
+  },
+
+  /**
+   * Shows the sites where the user has saved passwords and the associated login
+   * information.
+   */
+  showPasswords: function ()
+  {
+    document.documentElement.openWindow("Toolkit:PasswordManager",
+                                        "chrome://passwordmgr/content/passwordManager.xul",
+                                        "", null);
+  },
+      
+  /**
+   * Updates the HPKP enforcement level to the proper value depending on checkbox
+   * state.
+   */
+  updateHPKPPref: function() {
+    let checkbox = document.getElementById("enableHPKP");
+    let HPKPpref = document.getElementById("security.cert_pinning.enforcement_level");
+    
+    if (checkbox.checked) {
+      HPKPpref.value = 2;
+    } else {
+      HPKPpref.value = 0;
+    }
+  }
+};
diff --git a/webbrowser/components/preferences/security.xul b/webbrowser/components/preferences/security.xul
new file mode 100644
index 0000000..bae6cca
--- /dev/null
+++ b/webbrowser/components/preferences/security.xul
@@ -0,0 +1,181 @@
+<?xml version="1.0"?>
+
+<!-- -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE overlay [
+  <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+  <!ENTITY % securityDTD SYSTEM "chrome://browser/locale/preferences/security.dtd">
+  %brandDTD;
+  %securityDTD;
+]>
+
+<overlay id="SecurityPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <prefpane id="paneSecurity"
+            onpaneload="gSecurityPane.init();"
+            helpTopic="prefs-security">
+
+    <preferences id="securityPreferences">
+      <!-- XXX buttons -->
+      <preference id="pref.privacy.disable_button.view_passwords"
+                  name="pref.privacy.disable_button.view_passwords"
+                  type="bool"/>
+      <preference id="pref.privacy.disable_button.view_passwords_exceptions"
+                  name="pref.privacy.disable_button.view_passwords_exceptions"
+                  type="bool"/>
+
+      <!-- Add-ons, malware, phishing -->
+      <preference id="xpinstall.whitelist.required"
+                  name="xpinstall.whitelist.required"
+                  type="bool"/>
+      <preference id="extensions.blocklist.level"
+                  name="extensions.blocklist.level"
+                  onchange="gSecurityPane.addonLevelNeedsSync();"
+                  type="int"/>
+
+      <!-- Passwords -->
+      <preference id="signon.rememberSignons" name="signon.rememberSignons" type="bool"/>
+      <preference id="signon.autofillForms"   name="signon.autofillForms"   type="bool"/>
+
+      <!-- Security Protocols -->
+      
+      <preference id="network.stricttransportsecurity.enabled"
+                  name="network.stricttransportsecurity.enabled"
+                  type="bool"/>
+      
+      <!-- Opportunistic Encryption -->
+                  
+      <preference id="network.http.upgrade-insecure-requests"
+                  name="network.http.upgrade-insecure-requests"
+                  type="bool"/>
+      <preference id="network.http.altsvc.oe"
+                  name="network.http.altsvc.oe"
+                  type="bool"/>
+      
+      <!-- XSS Filter -->
+      <!--
+      <preference id="security.xssfilter.enable" name="security.xssfilter.enable" type="bool"/>
+      -->
+
+    </preferences>
+    
+    <script type="application/javascript" src="chrome://browser/content/preferences/security.js"/>
+    
+    <stringbundle id="bundlePreferences" src="chrome://browser/locale/preferences/preferences.properties"/>
+
+    <!-- addons, forgery (phishing) UI -->
+    <groupbox id="addonsSecurityGroup">
+      <caption label="&addons.label;"/>
+      
+      <hbox id="addonInstallBox">
+        <checkbox id="warnAddonInstall" flex="1"
+                  label="&warnAddonInstall.label;"
+                  accesskey="&warnAddonInstall.accesskey;"
+                  preference="xpinstall.whitelist.required"
+                  onsyncfrompreference="return gSecurityPane.readWarnAddonInstall();"/>
+        <button id="addonExceptions"
+                label="&addonExceptions.label;"
+                accesskey="&addonExceptions.accesskey;"
+                oncommand="gSecurityPane.showAddonExceptions();"/>
+      </hbox>
+      <hbox id="addonSecuritySettingsBox" flex="1">
+       <vbox>
+        <label id="addonSecurity" control="addonsecurity-menu">&addonSecuritylevel;</label>
+		<menulist id="addonsecurity-menu" preference="extensions.blocklist.level" sizetopopup="always">
+		  <menupopup>
+		    <menuitem label="&addonSecurityLevel_Off;" value="99" />
+		    <menuitem label="&addonSecurityLevel_Low;" value="3" />
+		    <menuitem label="&addonSecurityLevel_High;" value="2" />
+		    <menuitem label="&addonSecurityLevel_Extreme;" value="1" />
+		  </menupopup>
+		</menulist>       
+       </vbox>
+      </hbox>
+    </groupbox>
+
+    <!-- Passwords -->
+    <groupbox id="passwordsGroup" orient="vertical">
+      <caption label="&passwords.label;"/>
+
+      <hbox id="savePasswordsBox">
+        <checkbox id="savePasswords" flex="1"
+                  label="&rememberPasswords.label;" accesskey="&rememberPasswords.accesskey;"
+                  preference="signon.rememberSignons"
+                  onsyncfrompreference="return gSecurityPane.readSavePasswords();"/>
+        <button id="passwordExceptions"
+                label="&passwordExceptions.label;"
+                accesskey="&passwordExceptions.accesskey;"
+                oncommand="gSecurityPane.showPasswordExceptions();"
+                preference="pref.privacy.disable_button.view_passwords_exceptions"/>
+      </hbox>
+      <checkbox id="autofillPasswords" flex="1"
+                label="&autofillPasswords.label;" accesskey="&autofillPasswords.accesskey;"
+                preference="signon.autofillForms"/>
+      <hbox id="masterPasswordBox">
+        <checkbox id="useMasterPassword" flex="1"
+                  oncommand="gSecurityPane.updateMasterPasswordButton();"
+                  label="&useMasterPassword.label;"
+                  accesskey="&useMasterPassword.accesskey;"/>
+        <button id="changeMasterPassword"
+                label="&changeMasterPassword.label;"
+                accesskey="&changeMasterPassword.accesskey;"
+                oncommand="gSecurityPane.changeMasterPassword();"/>
+      </hbox>
+
+      <hbox id="showPasswordsBox">
+        <spacer flex="1"/>
+        <button id="showPasswords"
+                label="&savedPasswords.label;" accesskey="&savedPasswords.accesskey;"
+                oncommand="gSecurityPane.showPasswords();"
+                preference="pref.privacy.disable_button.view_passwords"/>
+      </hbox>
+    </groupbox>
+
+    <!-- Security protocols -->
+    <groupbox id="SecProtoGroup">
+      <caption label="&SecProto.label;"/>
+    
+      <vbox id="SecProtoBox" align="start" flex="1">
+        <checkbox id="enableHSTS"
+                  label="&enableHSTS.label;"
+                  accesskey="&enableHSTS.accesskey;"
+                  preference="network.stricttransportsecurity.enabled" />
+        <checkbox id="enableHPKP"
+                  label="&enableHPKP.label;"
+                  accesskey="&enableHPKP.accesskey;"
+		  preference="security.cert_pinning.hpkp.enabled"/>
+      </vbox>
+    </groupbox>
+    
+    <groupbox id="OpportunisticEncryption">
+      <caption label="&OpEnc.label;"/>
+      <checkbox id="enableUIROpEnc"
+                label="&enableUIROpEnc.label;"
+                preference="network.http.upgrade-insecure-requests" />
+      <checkbox id="enableAltSvcOpEnc"
+                label="&enableAltSvcOpEnc.label;"
+                preference="network.http.altsvc.oe" />
+    </groupbox>    
+
+    <!-- XSS Filter -->
+    <!--
+    <groupbox id="XSSFiltGroup">
+      <caption label="&XSSFilt.label;"/>
+    
+      <hbox id="XSSFiltBox">
+        <checkbox id="enableXSSFilt" flex="1"
+                  label="&enableXSSFilt.label;"
+                  accesskey="&enableXSSFilt.accesskey;"
+                  preference="security.xssfilter.enable" />
+      </hbox>
+
+    </groupbox>
+    -->
+
+  </prefpane>
+
+</overlay>
diff --git a/webbrowser/components/preferences/selectBookmark.js b/webbrowser/components/preferences/selectBookmark.js
new file mode 100644
index 0000000..c7ce022
--- /dev/null
+++ b/webbrowser/components/preferences/selectBookmark.js
@@ -0,0 +1,83 @@
+//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * SelectBookmarkDialog controls the user interface for the "Use Bookmark for
+ * Home Page" dialog. 
+ * 
+ * The caller (gMainPane.setHomePageToBookmark in main.js) invokes this dialog
+ * with a single argument - a reference to an object with a .urls property and
+ * a .names property.  This dialog is responsible for updating the contents of
+ * the .urls property with an array of URLs to use as home pages and for
+ * updating the .names property with an array of names for those URLs before it
+ * closes.
+ */ 
+var SelectBookmarkDialog = {
+  init: function SBD_init() {
+    document.getElementById("bookmarks").place =
+      "place:queryType=1&folder=" + PlacesUIUtils.allBookmarksFolderId;
+
+    // Initial update of the OK button.
+    this.selectionChanged();
+  },
+
+  /** 
+   * Update the disabled state of the OK button as the user changes the 
+   * selection within the view. 
+   */
+  selectionChanged: function SBD_selectionChanged() {
+    var accept = document.documentElement.getButton("accept");
+    var bookmarks = document.getElementById("bookmarks");
+    var disableAcceptButton = true;
+    if (bookmarks.hasSelection) {
+      if (!PlacesUtils.nodeIsSeparator(bookmarks.selectedNode))
+        disableAcceptButton = false;
+    }
+    accept.disabled = disableAcceptButton;
+  },
+
+  onItemDblClick: function SBD_onItemDblClick() {
+    var bookmarks = document.getElementById("bookmarks");
+    var selectedNode = bookmarks.selectedNode;
+    if (selectedNode && PlacesUtils.nodeIsURI(selectedNode)) {
+      /**
+       * The user has double clicked on a tree row that is a link. Take this to
+       * mean that they want that link to be their homepage, and close the dialog.
+       */
+      document.documentElement.getButton("accept").click();
+    }
+  },
+
+  /**
+   * User accepts their selection. Set all the selected URLs or the contents
+   * of the selected folder as the list of homepages.
+   */
+  accept: function SBD_accept() {
+    var bookmarks = document.getElementById("bookmarks");
+    NS_ASSERT(bookmarks.hasSelection,
+              "Should not be able to accept dialog if there is no selected URL!");
+    var urls = [];
+    var names = [];
+    var selectedNode = bookmarks.selectedNode;
+    if (PlacesUtils.nodeIsFolder(selectedNode)) {
+      var contents = PlacesUtils.getFolderContents(selectedNode.itemId).root;
+      var cc = contents.childCount;
+      for (var i = 0; i < cc; ++i) {
+        var node = contents.getChild(i);
+        if (PlacesUtils.nodeIsURI(node)) {
+          urls.push(node.uri);
+          names.push(node.title);
+        }
+      }
+      contents.containerOpen = false;
+    }
+    else {
+      urls.push(selectedNode.uri);
+      names.push(selectedNode.title);
+    }
+    window.arguments[0].urls = urls;
+    window.arguments[0].names = names;
+  }
+};
diff --git a/webbrowser/components/preferences/selectBookmark.xul b/webbrowser/components/preferences/selectBookmark.xul
new file mode 100644
index 0000000..5547534
--- /dev/null
+++ b/webbrowser/components/preferences/selectBookmark.xul
@@ -0,0 +1,44 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+<?xml-stylesheet href="chrome://browser/content/places/places.css"?>
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+<?xml-stylesheet href="chrome://browser/skin/places/places.css"?>
+
+<?xul-overlay href="chrome://browser/content/places/placesOverlay.xul"?>
+
+<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/selectBookmark.dtd">
+
+<dialog id="selectBookmarkDialog"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        title="&selectBookmark.title;" style="width: 32em;"
+        persist="screenX screenY width height" screenX="24" screenY="24"      
+        onload="SelectBookmarkDialog.init();" 
+        ondialogaccept="SelectBookmarkDialog.accept();">
+
+  <script type="application/javascript"
+          src="chrome://browser/content/preferences/selectBookmark.js"/>
+  
+  <description>&selectBookmark.label;</description>
+
+  <separator class="thin"/>
+
+  <tree id="bookmarks" flex="1" type="places" 
+        style="height: 15em;" 
+        hidecolumnpicker="true"
+        seltype="single"
+        ondblclick="SelectBookmarkDialog.onItemDblClick();"
+        onselect="SelectBookmarkDialog.selectionChanged();">
+    <treecols>
+      <treecol id="title" flex="1" primary="true" hideheader="true"/>
+    </treecols>
+    <treechildren id="bookmarksChildren" flex="1"/>
+  </tree>
+
+  <separator class="thin"/>
+
+</dialog>
diff --git a/webbrowser/components/preferences/sync.js b/webbrowser/components/preferences/sync.js
new file mode 100644
index 0000000..f29728d
--- /dev/null
+++ b/webbrowser/components/preferences/sync.js
@@ -0,0 +1,192 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://services-sync/main.js");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const PAGE_NO_ACCOUNT = 0;
+const PAGE_HAS_ACCOUNT = 1;
+const PAGE_NEEDS_UPDATE = 2;
+
+var gSyncPane = {
+  _stringBundle: null,
+  prefArray: ["engine.bookmarks", "engine.passwords", "engine.prefs",
+              "engine.tabs", "engine.history"],
+
+  get page() {
+    return document.getElementById("weavePrefsDeck").selectedIndex;
+  },
+
+  set page(val) {
+    document.getElementById("weavePrefsDeck").selectedIndex = val;
+  },
+
+  get _usingCustomServer() {
+    return Weave.Svc.Prefs.isSet("serverURL");
+  },
+
+  needsUpdate: function () {
+    this.page = PAGE_NEEDS_UPDATE;
+    let label = document.getElementById("loginError");
+    label.value = Weave.Utils.getErrorString(Weave.Status.login);
+    label.className = "error";
+  },
+
+  init: function () {
+    // If the Service hasn't finished initializing, wait for it.
+    let xps = Components.classes["@mozilla.org/weave/service;1"]
+                                .getService(Components.interfaces.nsISupports)
+                                .wrappedJSObject;
+
+    if (xps.ready) {
+      this._init();
+      return;
+    }
+
+    let onUnload = function () {
+      window.removeEventListener("unload", onUnload, false);
+      try {
+        Services.obs.removeObserver(onReady, "weave:service:ready");
+      } catch (e) {}
+    };
+
+    let onReady = function () {
+      Services.obs.removeObserver(onReady, "weave:service:ready");
+      window.removeEventListener("unload", onUnload, false);
+      this._init();
+    }.bind(this);
+
+    Services.obs.addObserver(onReady, "weave:service:ready", false);
+    window.addEventListener("unload", onUnload, false);
+
+    xps.ensureLoaded();
+  },
+
+  _init: function () {
+    let topics = ["weave:service:login:error",
+                  "weave:service:login:finish",
+                  "weave:service:start-over",
+                  "weave:service:setup-complete",
+                  "weave:service:logout:finish"];
+
+    // Add the observers now and remove them on unload
+    //XXXzpao This should use Services.obs.* but Weave's Obs does nice handling
+    //        of `this`. Fix in a followup. (bug 583347)
+    topics.forEach(function (topic) {
+      Weave.Svc.Obs.add(topic, this.updateWeavePrefs, this);
+    }, this);
+    window.addEventListener("unload", function() {
+      topics.forEach(function (topic) {
+        Weave.Svc.Obs.remove(topic, this.updateWeavePrefs, this);
+      }, gSyncPane);
+    }, false);
+
+    this._stringBundle =
+      Services.strings.createBundle("chrome://browser/locale/preferences/preferences.properties");
+    this.updateWeavePrefs();
+  },
+
+  updateWeavePrefs: function () {
+    if (Weave.Status.service == Weave.CLIENT_NOT_CONFIGURED ||
+        Weave.Svc.Prefs.get("firstSync", "") == "notReady") {
+      this.page = PAGE_NO_ACCOUNT;
+    } else if (Weave.Status.login == Weave.LOGIN_FAILED_INVALID_PASSPHRASE ||
+               Weave.Status.login == Weave.LOGIN_FAILED_LOGIN_REJECTED) {
+      this.needsUpdate();
+    } else {
+      this.page = PAGE_HAS_ACCOUNT;
+      document.getElementById("accountName").value = Weave.Service.identity.account;
+      document.getElementById("syncComputerName").value = Weave.Service.clientsEngine.localName;
+      document.getElementById("tosPP").hidden = this._usingCustomServer;
+    }
+  },
+
+  startOver: function (showDialog) {
+    if (showDialog) {
+      let flags = Services.prompt.BUTTON_POS_0 * Services.prompt.BUTTON_TITLE_IS_STRING +
+                  Services.prompt.BUTTON_POS_1 * Services.prompt.BUTTON_TITLE_CANCEL + 
+                  Services.prompt.BUTTON_POS_1_DEFAULT;
+      let buttonChoice =
+        Services.prompt.confirmEx(window,
+                                  this._stringBundle.GetStringFromName("syncUnlink.title"),
+                                  this._stringBundle.GetStringFromName("syncUnlink.label"),
+                                  flags,
+                                  this._stringBundle.GetStringFromName("syncUnlinkConfirm.label"),
+                                  null, null, null, {});
+
+      // If the user selects cancel, just bail
+      if (buttonChoice == 1) {
+        return;
+      }
+    }
+
+    Weave.Service.startOver();
+    this.updateWeavePrefs();
+  },
+
+  updatePass: function () {
+    if (Weave.Status.login == Weave.LOGIN_FAILED_LOGIN_REJECTED) {
+      gSyncUtils.changePassword();
+    } else {
+      gSyncUtils.updatePassphrase();
+    }
+  },
+
+  resetPass: function () {
+    if (Weave.Status.login == Weave.LOGIN_FAILED_LOGIN_REJECTED) {
+      gSyncUtils.resetPassword();
+    } else {
+      gSyncUtils.resetPassphrase();
+    }
+  },
+
+  /**
+   * Invoke the Sync setup wizard.
+   *
+   * @param wizardType
+   *        Indicates type of wizard to launch:
+   *          null    -- regular set up wizard
+   *          "pair"  -- pair a device first
+   *          "reset" -- reset sync
+   */
+  openSetup: function (wizardType) {
+    let win = Services.wm.getMostRecentWindow("Weave:AccountSetup");
+    if (win) {
+      win.focus();
+    } else {
+      window.openDialog("chrome://browser/content/sync/setup.xul",
+                        "weaveSetup", "centerscreen,chrome,resizable=no",
+                        wizardType);
+    }
+  },
+
+  openQuotaDialog: function () {
+    let win = Services.wm.getMostRecentWindow("Sync:ViewQuota");
+    if (win) {
+      win.focus();
+    } else {
+      window.openDialog("chrome://browser/content/sync/quota.xul", "",
+                        "centerscreen,chrome,dialog,modal");
+    }
+  },
+
+  openAddDevice: function () {
+    if (!Weave.Utils.ensureMPUnlocked()) {
+      return;
+    }
+
+    let win = Services.wm.getMostRecentWindow("Sync:AddDevice");
+    if (win) {
+      win.focus();
+    } else {
+      window.openDialog("chrome://browser/content/sync/addDevice.xul",
+                        "syncAddDevice", "centerscreen,chrome,resizable=no");
+    }
+  },
+
+  resetSync: function () {
+    this.openSetup("reset");
+  },
+};
+
diff --git a/webbrowser/components/preferences/sync.xul b/webbrowser/components/preferences/sync.xul
new file mode 100644
index 0000000..52f5a95
--- /dev/null
+++ b/webbrowser/components/preferences/sync.xul
@@ -0,0 +1,178 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE overlay [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+<!ENTITY % syncBrandDTD SYSTEM "chrome://browser/locale/syncBrand.dtd">
+<!ENTITY % syncDTD SYSTEM "chrome://browser/locale/preferences/sync.dtd">
+%brandDTD;
+%syncBrandDTD;
+%syncDTD;
+]>
+
+<overlay id="SyncPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+         xmlns:html="http://www.w3.org/1999/xhtml">
+
+  <prefpane id="paneSync"
+            helpTopic="prefs-weave"
+            onpaneload="gSyncPane.init()">
+
+    <preferences>
+<!--      <preference id="engine.addons"    name="services.sync.engine.addons"    type="bool"/> -->
+      <preference id="engine.bookmarks" name="services.sync.engine.bookmarks" type="bool"/>
+      <preference id="engine.history"   name="services.sync.engine.history"   type="bool"/>
+      <preference id="engine.tabs"      name="services.sync.engine.tabs"      type="bool"/>
+      <preference id="engine.prefs"     name="services.sync.engine.prefs"     type="bool"/>
+      <preference id="engine.passwords" name="services.sync.engine.passwords" type="bool"/>
+    </preferences>
+
+
+    <script type="application/javascript"
+            src="chrome://browser/content/preferences/sync.js"/>
+    <script type="application/javascript"
+            src="chrome://browser/content/sync/utils.js"/>
+
+
+      <deck id="weavePrefsDeck">
+        <vbox id="noAccount" align="center">
+          <spacer flex="1"/>
+          <description id="syncDesc">
+            &weaveDesc.label;
+          </description>
+          <separator/>
+          <label class="text-link"
+                 onclick="event.stopPropagation(); gSyncPane.openSetup(null);"
+                 value="&setupButton.label;"/>
+          <separator/>
+          <label class="text-link"
+                 onclick="event.stopPropagation(); gSyncPane.openSetup('pair');"
+                 value="&pairDevice.label;"/>
+          <spacer flex="3"/>
+        </vbox>
+
+        <vbox id="hasAccount">
+          <groupbox class="syncGroupBox">
+            <!-- label is set to account name -->
+            <caption id="accountCaption" align="center">
+              <image id="accountCaptionImage"/>
+              <label id="accountName" value=""/>
+            </caption>
+
+            <hbox>
+              <button type="menu"
+                      label="&manageAccount.label;"
+                      accesskey="&manageAccount.accesskey;">
+                <menupopup>
+                  <menuitem label="&viewQuota.label;"
+                            oncommand="gSyncPane.openQuotaDialog();"/>
+                  <menuseparator/>
+                  <menuitem label="&changePassword2.label;"
+                            oncommand="gSyncUtils.changePassword();"/>
+                  <menuitem label="&myRecoveryKey.label;"
+                            oncommand="gSyncUtils.resetPassphrase();"/>
+                  <menuseparator/>
+                  <menuitem label="&resetSync2.label;"
+                            oncommand="gSyncPane.resetSync();"/>
+                </menupopup>
+              </button>
+            </hbox>
+
+            <hbox>
+              <label id="syncAddDeviceLabel"
+                     class="text-link"
+                     onclick="gSyncPane.openAddDevice(); return false;"
+                     value="&pairDevice.label;"/>
+            </hbox>
+
+            <vbox>
+              <label value="&syncMy.label;" />
+              <richlistbox id="syncEnginesList"
+                           orient="vertical"
+                           onselect="if (this.selectedCount) this.clearSelection();">
+<!--                <richlistitem>
+                  <checkbox label="&engine.addons.label;"
+                            accesskey="&engine.addons.accesskey;"
+                            preference="engine.addons"/>
+                </richlistitem> -->
+                <richlistitem>
+                  <checkbox label="&engine.bookmarks.label;"
+                            accesskey="&engine.bookmarks.accesskey;"
+                            preference="engine.bookmarks"/>
+                </richlistitem>
+                <richlistitem>
+                  <checkbox label="&engine.passwords.label;"
+                            accesskey="&engine.passwords.accesskey;"
+                            preference="engine.passwords"/>
+                </richlistitem>
+                <richlistitem>
+                  <checkbox label="&engine.prefs.label;"
+                            accesskey="&engine.prefs.accesskey;"
+                            preference="engine.prefs"/>
+                </richlistitem>
+                <richlistitem>
+                  <checkbox label="&engine.history.label;"
+                            accesskey="&engine.history.accesskey;"
+                            preference="engine.history"/>
+                </richlistitem>
+                <richlistitem>
+                  <checkbox label="&engine.tabs.label;"
+                            accesskey="&engine.tabs.accesskey;"
+                            preference="engine.tabs"/>
+                </richlistitem>
+              </richlistbox>
+            </vbox>
+          </groupbox>
+
+          <groupbox class="syncGroupBox">
+            <grid>
+              <columns>
+                <column/>
+                <column flex="1"/>
+              </columns>
+              <rows>
+                <row align="center">
+                  <label value="&syncDeviceName.label;"
+                         accesskey="&syncDeviceName.accesskey;"
+                         control="syncComputerName"/>
+                  <textbox id="syncComputerName"
+                           onchange="gSyncUtils.changeName(this)"/>
+                </row>
+              </rows>
+            </grid>
+            <hbox>
+              <label class="text-link"
+                     onclick="gSyncPane.startOver(true); return false;"
+                     value="&unlinkDevice.label;"/>
+            </hbox>
+          </groupbox>
+          <hbox id="tosPP" pack="center">
+            <label class="text-link"
+                   onclick="event.stopPropagation();gSyncUtils.openToS();"
+                   value="&prefs.tosLink.label;"/>
+            <label class="text-link"
+                   onclick="event.stopPropagation();gSyncUtils.openPrivacyPolicy();"
+                   value="&prefs.ppLink.label;"/>
+          </hbox>
+        </vbox>
+
+        <vbox id="needsUpdate" align="center" pack="center">
+          <hbox>
+            <label id="loginError" value=""/>
+            <label class="text-link"
+                   onclick="gSyncPane.updatePass(); return false;"
+                   value="&updatePass.label;"/>
+            <label class="text-link"
+                   onclick="gSyncPane.resetPass(); return false;"
+                   value="&resetPass.label;"/>
+          </hbox>
+          <label class="text-link"
+                 onclick="gSyncPane.startOver(true); return false;"
+                 value="&unlinkDevice.label;"/>
+        </vbox>
+      </deck>
+  </prefpane>
+</overlay>
diff --git a/webbrowser/components/preferences/tabs.js b/webbrowser/components/preferences/tabs.js
new file mode 100644
index 0000000..b09cb60
--- /dev/null
+++ b/webbrowser/components/preferences/tabs.js
@@ -0,0 +1,90 @@
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+var gTabsPane = {
+
+  /*
+   * Preferences:
+   *
+   * browser.link.open_newwindow
+   * - determines where pages which would open in a new window are opened:
+   *     1 opens such links in the most recent window or tab,
+   *     2 opens such links in a new window,
+   *     3 opens such links in a new tab
+   * browser.tabs.loadInBackground
+   * - true if display should switch to a new tab which has been opened from a
+   *   link, false if display shouldn't switch
+   * browser.tabs.warnOnClose
+   * - true if when closing a window with multiple tabs the user is warned and
+   *   allowed to cancel the action, false to just close the window
+   * browser.tabs.warnOnOpen
+   * - true if the user should be warned if he attempts to open a lot of tabs at
+   *   once (e.g. a large folder of bookmarks), false otherwise
+   * browser.taskbar.previews.enable
+   * - true if tabs are to be shown in the Windows 7 taskbar
+   */
+
+  /**
+   * Initialize any platform-specific UI.
+   */
+  init: function () {
+#ifdef XP_WIN
+    const Cc = Components.classes;
+    const Ci = Components.interfaces;
+    try {
+      let sysInfo = Cc["@mozilla.org/system-info;1"].
+                    getService(Ci.nsIPropertyBag2);
+      let ver = parseFloat(sysInfo.getProperty("version"));
+      let showTabsInTaskbar = document.getElementById("showTabsInTaskbar");
+      showTabsInTaskbar.hidden = ver < 6.1;
+    } catch (ex) {}
+#endif
+    // Set the proper value in the newtab drop-down.
+    gTabsPane.readNewtabUrl();
+  },
+
+  /**
+   * Pale Moon: synchronize warnOnClose and warnOnCloseOtherTabs
+   */
+  syncWarnOnClose: function() {
+    var warnOnClosePref = document.getElementById("browser.tabs.warnOnClose");
+    var warnOnCloseOtherPref = document.getElementById("browser.tabs.warnOnCloseOtherTabs");
+    warnOnCloseOtherPref.value = warnOnClosePref.value;
+  },
+  
+  /**
+   * Determines where a link which opens a new window will open.
+   *
+   * @returns |true| if such links should be opened in new tabs
+   */
+  readLinkTarget: function() {
+    var openNewWindow = document.getElementById("browser.link.open_newwindow");
+    return openNewWindow.value != 2;
+  },
+
+  /**
+   * Determines where a link which opens a new window will open.
+   *
+   * @returns 2 if such links should be opened in new windows,
+   *          3 if such links should be opened in new tabs
+   */
+  writeLinkTarget: function() {
+    var linkTargeting = document.getElementById("linkTargeting");
+    return linkTargeting.checked ? 3 : 2;
+  },
+
+  /**
+   * Determines the value of the New Tab display drop-down based
+   * on the value of browser.newtab.url.
+   */
+  readNewtabUrl: function() {
+    let newtabUrlChoice = document.getElementById("browser.newtab.choice");
+    newtabUrlChoice.value = gNewtabUrl.getNewtabChoice();
+    if (newtabUrlChoice.value == 0) {
+      document.getElementById("newtabPageCustom").hidden = false;
+    }
+    gNewtabUrl.newtabUrlChoiceIsSet = true;
+  }
+};
diff --git a/webbrowser/components/preferences/tabs.xul b/webbrowser/components/preferences/tabs.xul
new file mode 100644
index 0000000..64529d6
--- /dev/null
+++ b/webbrowser/components/preferences/tabs.xul
@@ -0,0 +1,102 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<!DOCTYPE overlay [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+%brandDTD;
+<!ENTITY % tabsDTD SYSTEM "chrome://browser/locale/preferences/tabs.dtd">
+%tabsDTD;
+]>
+
+<overlay id="TabsPaneOverlay"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <prefpane id="paneTabs"
+            onpaneload="gTabsPane.init();"
+            helpTopic="prefs-tabs">
+
+    <preferences id="tabsPreferences">
+      <preference id="browser.link.open_newwindow"     name="browser.link.open_newwindow"     type="int"/>
+      <preference id="browser.tabs.autoHide"           name="browser.tabs.autoHide"           type="bool" inverted="true"/>
+      <preference id="browser.tabs.loadInBackground"   name="browser.tabs.loadInBackground"   type="bool" inverted="true"/>
+      <preference id="browser.tabs.warnOnClose"        name="browser.tabs.warnOnClose"        type="bool"
+                  onchange="gTabsPane.syncWarnOnClose();"/>
+      <preference id="browser.tabs.warnOnCloseOtherTabs" name="browser.tabs.warnOnCloseOtherTabs" type="bool"/>
+      <preference id="browser.tabs.warnOnOpen"         name="browser.tabs.warnOnOpen"         type="bool"/>
+      <preference id="browser.sessionstore.restore_on_demand" name="browser.sessionstore.restore_on_demand" type="bool"/>
+#ifdef XP_WIN
+      <preference id="browser.taskbar.previews.enable" name="browser.taskbar.previews.enable" type="bool"/>
+#endif
+      <preference id="browser.tabs.insertRelatedAfterCurrent"  name="browser.tabs.insertRelatedAfterCurrent"  type="bool"/>
+      <preference id="browser.search.context.loadInBackground" name="browser.search.context.loadInBackground" type="bool" inverted="true"/>
+      <preference id="browser.tabs.closeWindowWithLastTab"     name="browser.tabs.closeWindowWithLastTab"     type="bool"/>
+      <preference id="browser.ctrlTab.previews"                name="browser.ctrlTab.previews"                type="bool"/>
+      
+      <preference id="browser.newtab.url"    name="browser.newtab.url"    type="string"/>
+      <preference id="browser.newtab.myhome" name="browser.newtab.myhome" type="string"/>
+      <preference id="browser.newtab.choice" name="browser.newtab.choice" type="int"/>
+    </preferences>
+    
+    <script type="application/javascript" src="chrome://browser/content/preferences/tabs.js"/>
+
+    <!-- XXX flex below is a hack because wrapping checkboxes don't reflow
+             properly; see bug 349098 -->
+    <vbox id="tabPrefsBox" align="start" flex="1">
+      <checkbox id="linkTargeting" label="&newWindowsAsTabs.label;"
+                accesskey="&newWindowsAsTabs.accesskey;"
+                preference="browser.link.open_newwindow"
+                onsyncfrompreference="return gTabsPane.readLinkTarget();"
+                onsynctopreference="return gTabsPane.writeLinkTarget();"/>
+      <checkbox id="warnCloseMultiple" label="&warnCloseMultipleTabs.label;"
+                accesskey="&warnCloseMultipleTabs.accesskey;"
+                preference="browser.tabs.warnOnClose"/>
+      <checkbox id="warnOpenMany" label="&warnOpenManyTabs.label;"
+                accesskey="&warnOpenManyTabs.accesskey;"
+                preference="browser.tabs.warnOnOpen"/>
+      <checkbox id="showTabBar" label="&showTabBar.label;"
+                accesskey="&showTabBar.accesskey;"
+                preference="browser.tabs.autoHide"/>
+      <checkbox id="restoreOnDemand" label="&restoreTabsOnDemand.label;"
+                accesskey="&restoreTabsOnDemand.accesskey;"
+                preference="browser.sessionstore.restore_on_demand"/>
+      <checkbox id="switchToNewTabs" label="&switchToNewTabs.label;"
+                accesskey="&switchToNewTabs.accesskey;"
+                preference="browser.tabs.loadInBackground"/>
+#ifdef XP_WIN
+      <checkbox id="showTabsInTaskbar" label="&showTabsInTaskbar.label;"
+                accesskey="&showTabsInTaskbar.accesskey;"
+                preference="browser.taskbar.previews.enable"/>
+#endif
+<!-- Pale Moon additions -->
+      <checkbox id="insertRelatedAfterCurrent" label="&insertRelatedAfterCurrent.label;"
+                preference="browser.tabs.insertRelatedAfterCurrent"/>
+      <checkbox id="contextLoadInBackground" label="&contextLoadInBackground.label;"
+                preference="browser.search.context.loadInBackground"/>
+      <checkbox id="closeWindowWithLastTab" label="&closeWindowWithLastTab.label;"
+                preference="browser.tabs.closeWindowWithLastTab"/>
+      <checkbox id="showTabPreviews" label="&showTabPreviews.label;"
+                preference="browser.ctrlTab.previews"/>
+      <hbox align="center">
+        <label value="&newtabPage.label;"/>
+        <menulist 
+          id="newtabPage"
+          preference="browser.newtab.choice"
+          oncommand="gNewtabUrl.writeNewtabUrl(event.target.value);">
+          <menupopup>
+            <menuitem label="&newtabPage.custom.label;"    value="0" id="newtabPageCustom" hidden="true" />
+            <menuitem label="&newtabPage.blank.label;"     value="1" />
+            <menuitem label="&newtabPage.home.label;"      value="2" />
+            <menuitem label="&newtabPage.myhome.label;"    value="3" />
+            <menuitem label="&newtabPage.quickdial.label;" value="4" />
+          </menupopup>
+        </menulist>
+      </hbox>
+    </vbox>
+
+  </prefpane>
+
+</overlay>