Issue #303 Part 1: Move basilisk files from /browser to /application/basilisk

51 files changed, 0 insertions, 13312 deletions

diff --git a/browser/components/preferences/applicationManager.js b/browser/components/preferences/applicationManager.js
deleted file mode 100644
index 2e0f47a69..000000000
--- a/browser/components/preferences/applicationManager.js
+++ /dev/null
@@ -1,102 +0,0 @@
-// 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/.
-
-/* import-globals-from in-content/applications.js */
-
-var Cc = Components.classes;
-var Ci = Components.interfaces;
-
-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/browser/components/preferences/applicationManager.xul b/browser/components/preferences/applicationManager.xul
deleted file mode 100644
index ea9d3a53f..000000000
--- a/browser/components/preferences/applicationManager.xul
+++ /dev/null
@@ -1,59 +0,0 @@
-<?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/in-content/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/browser/components/preferences/blocklists.js b/browser/components/preferences/blocklists.js
deleted file mode 100644
index bc39eb6bd..000000000
--- a/browser/components/preferences/blocklists.js
+++ /dev/null
@@ -1,209 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://gre/modules/Services.jsm");
-const BASE_LIST_ID = "base";
-const CONTENT_LIST_ID = "content";
-const TRACK_SUFFIX = "-track-digest256";
-const TRACKING_TABLE_PREF = "urlclassifier.trackingTable";
-const LISTS_PREF_BRANCH = "browser.safebrowsing.provider.mozilla.lists.";
-const UPDATE_TIME_PREF = "browser.safebrowsing.provider.mozilla.nextupdatetime";
-
-var gBlocklistManager = {
-  _type: "",
-  _blockLists: [],
-  _brandShortName : null,
-  _bundle: null,
-  _tree: null,
-
-  _view: {
-    _rowCount: 0,
-    get rowCount() {
-      return this._rowCount;
-    },
-    getCellText: function (row, column) {
-      if (column.id == "listCol") {
-        let list = gBlocklistManager._blockLists[row];
-        let desc = list.description ? list.description : "";
-        let text = gBlocklistManager._bundle.getFormattedString("mozNameTemplate",
-                                                                [list.name, desc]);
-        return text;
-      }
-      return "";
-    },
-
-    isSeparator: function(index) { return false; },
-    isSorted: function() { return false; },
-    isContainer: function(index) { return false; },
-    setTree: function(tree) {},
-    getImageSrc: function(row, column) {},
-    getProgressMode: function(row, column) {},
-    getCellValue: function(row, column) {
-      if (column.id == "selectionCol")
-        return gBlocklistManager._blockLists[row].selected;
-      return undefined;
-    },
-    cycleHeader: function(column) {},
-    getRowProperties: function(row) { return ""; },
-    getColumnProperties: function(column) { return ""; },
-    getCellProperties: function(row, column) {
-      if (column.id == "selectionCol") {
-        return "checkmark";
-      }
-
-      return "";
-    }
-  },
-
-  onWindowKeyPress: function (event) {
-    if (event.keyCode == KeyEvent.DOM_VK_ESCAPE) {
-      window.close();
-    } else if (event.keyCode == KeyEvent.DOM_VK_RETURN) {
-      gBlocklistManager.onApplyChanges();
-    }
-  },
-
-  onLoad: function () {
-    this._bundle = document.getElementById("bundlePreferences");
-    let params = window.arguments[0];
-    this.init(params);
-  },
-
-  init: function (params) {
-    if (this._type) {
-      // reusing an open dialog, clear the old observer
-      this.uninit();
-    }
-
-    this._type = "tracking";
-    this._brandShortName = params.brandShortName;
-
-    let blocklistsText = document.getElementById("blocklistsText");
-    while (blocklistsText.hasChildNodes()) {
-      blocklistsText.removeChild(blocklistsText.firstChild);
-    }
-    blocklistsText.appendChild(document.createTextNode(params.introText));
-
-    document.title = params.windowTitle;
-
-    let treecols = document.getElementsByTagName("treecols")[0];
-    treecols.addEventListener("click", event => {
-      if (event.target.nodeName != "treecol" || event.button != 0) {
-        return;
-      }
-    });
-
-    this._loadBlockLists();
-  },
-
-  uninit: function () {},
-
-  onListSelected: function () {
-    for (let list of this._blockLists) {
-      list.selected = false;
-    }
-    this._blockLists[this._tree.currentIndex].selected = true;
-
-    this._updateTree();
-  },
-
-  onApplyChanges: function () {
-    let activeList = this._getActiveList();
-    let selected = null;
-    for (let list of this._blockLists) {
-      if (list.selected) {
-        selected = list;
-        break;
-      }
-    }
-
-    if (activeList !== selected.id) {
-      const Cc = Components.classes, Ci = Components.interfaces;
-      let msg = this._bundle.getFormattedString("blocklistChangeRequiresRestart",
-                                                [this._brandShortName]);
-      let title = this._bundle.getFormattedString("shouldRestartTitle",
-                                                  [this._brandShortName]);
-      let shouldProceed = Services.prompt.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) {
-          let trackingTable = Services.prefs.getCharPref(TRACKING_TABLE_PREF);
-          if (selected.id != CONTENT_LIST_ID) {
-            trackingTable = trackingTable.replace("," + CONTENT_LIST_ID + TRACK_SUFFIX, "");
-          } else {
-            trackingTable += "," + CONTENT_LIST_ID + TRACK_SUFFIX;
-          }
-          Services.prefs.setCharPref(TRACKING_TABLE_PREF, trackingTable);
-          Services.prefs.setCharPref(UPDATE_TIME_PREF, 42);
-
-          Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit |
-                                Ci.nsIAppStartup.eRestart);
-        }
-      }
-
-      // Don't close the dialog in case we didn't quit.
-      return;
-    }
-    window.close();
-  },
-
-  _loadBlockLists: function () {
-    this._blockLists = [];
-
-    // Load blocklists into a table.
-    let branch = Services.prefs.getBranch(LISTS_PREF_BRANCH);
-    let itemArray = branch.getChildList("");
-    for (let itemName of itemArray) {
-      try {
-        this._createOrUpdateBlockList(itemName);
-      } catch (e) {
-        // Ignore bogus or missing list name.
-        continue;
-      }
-    }
-
-    this._updateTree();
-  },
-
-  _createOrUpdateBlockList: function (itemName) {
-    let branch = Services.prefs.getBranch(LISTS_PREF_BRANCH);
-    let key = branch.getCharPref(itemName);
-    let value = this._bundle.getString(key);
-
-    let suffix = itemName.slice(itemName.lastIndexOf("."));
-    let id = itemName.replace(suffix, "");
-    let list = this._blockLists.find(el => el.id === id);
-    if (!list) {
-      list = { id };
-      this._blockLists.push(list);
-    }
-    list.selected = this._getActiveList() === id;
-
-    // Get the property name from the suffix (e.g. ".name" -> "name").
-    let prop = suffix.slice(1);
-    list[prop] = value;
-
-    return list;
-  },
-
-  _updateTree: function () {
-    this._tree = document.getElementById("blocklistsTree");
-    this._view._rowCount = this._blockLists.length;
-    this._tree.view = this._view;
-  },
-
-  _getActiveList: function () {
-    let trackingTable = Services.prefs.getCharPref(TRACKING_TABLE_PREF);
-    return trackingTable.includes(CONTENT_LIST_ID) ? CONTENT_LIST_ID : BASE_LIST_ID;
-  }
-};
-
-function initWithParams(params) {
-  gBlocklistManager.init(params);
-}
diff --git a/browser/components/preferences/blocklists.xul b/browser/components/preferences/blocklists.xul
deleted file mode 100644
index 523c20810..000000000
--- a/browser/components/preferences/blocklists.xul
+++ /dev/null
@@ -1,56 +0,0 @@
-<?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/" type="text/css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css" type="text/css"?>
-
-<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/blocklists.dtd" >
-
-<window id="BlocklistsDialog" class="windowDialog"
-        windowtype="Browser:Blocklists"
-        title="&window.title;"
-        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-        style="width: &window.width;;"
-        onload="gBlocklistManager.onLoad();"
-        onunload="gBlocklistManager.uninit();"
-        persist="screenX screenY width height"
-        onkeypress="gBlocklistManager.onWindowKeyPress(event);">
-
-  <script src="chrome://global/content/treeUtils.js"/>
-  <script src="chrome://browser/content/preferences/blocklists.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 largeDialogContainer" flex="1">
-    <description id="blocklistsText" control="url"/>
-    <separator class="thin"/>
-    <tree id="blocklistsTree" flex="1" style="height: 18em;"
-          hidecolumnpicker="true"
-          onselect="gBlocklistManager.onListSelected();">
-      <treecols>
-        <treecol id="selectionCol" label="" flex="1" sortable="false"
-                 type="checkbox"/>
-        <treecol id="listCol" label="&treehead.list.label;" flex="80"
-                 sortable="false"/>
-      </treecols>
-      <treechildren/>
-    </tree>
-  </vbox>
-  <vbox>
-    <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="gBlocklistManager.onApplyChanges();" icon="save"
-              label="&button.ok.label;" accesskey="&button.ok.accesskey;"/>
-    </hbox>
-  </vbox>
-</window>
diff --git a/browser/components/preferences/colors.xul b/browser/components/preferences/colors.xul
deleted file mode 100644
index f2109aed7..000000000
--- a/browser/components/preferences/colors.xul
+++ /dev/null
@@ -1,102 +0,0 @@
-<?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/browser/components/preferences/connection.js b/browser/components/preferences/connection.js
deleted file mode 100644
index f6b395a2d..000000000
--- a/browser/components/preferences/connection.js
+++ /dev/null
@@ -1,213 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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 the port is 0 and the proxy server is specified, focus on the port and cancel submission.
-    for (let prefName of ["http", "ssl", "ftp", "socks"]) {
-      let proxyPortPref = document.getElementById("network.proxy." + prefName + "_port");
-      let proxyPref = document.getElementById("network.proxy." + prefName);
-      // Only worry about ports which are currently active. If the share option is on, then ignore
-      // all ports except the HTTP port
-      if (proxyPref.value != "" && proxyPortPref.value == 0 &&
-            (prefName == "http" || !shareProxiesPref.value)) {
-        document.getElementById("networkProxy" + prefName.toUpperCase() + "_Port").focus();
-        return false;
-      }
-    }
-
-    // In the case of a shared proxy preference, backup the current values and update with the HTTP value
-    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 = backupServerURLPref.value || proxyServerURLPref.value;
-        backupPortPref.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 != 1;
-
-    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/browser/components/preferences/connection.xul b/browser/components/preferences/connection.xul
deleted file mode 100644
index a3f0d082a..000000000
--- a/browser/components/preferences/connection.xul
+++ /dev/null
@@ -1,173 +0,0 @@
-<?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 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.macWidth2; !important;">
-#else
-            style="width: &window.width2; !important;">
-#endif
-
-  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
-
-  <prefpane id="ConnectionsDialogPane"
-            class="largeDialogContainer"
-            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/>
-              <box pack="start">
-              <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>
-              </box>
-            </row>
-            <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"/>
-          </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>
-    </groupbox>
-    <separator class="thin"/>
-    <checkbox id="autologinProxy"
-              label="&autologinproxy.label;"
-              accesskey="&autologinproxy.accesskey;"
-              preference="signon.autologin.proxy"
-              tooltiptext="&autologinproxy.tooltip;"/>
-    <checkbox id="networkProxySOCKSRemoteDNS"  preference="network.proxy.socks_remote_dns" label="&socksRemoteDNS.label2;" accesskey="&socksRemoteDNS.accesskey;" />
-    <separator/>
-  </prefpane>
-</prefwindow>
diff --git a/browser/components/preferences/containers.js b/browser/components/preferences/containers.js
deleted file mode 100644
index 6ca5853f7..000000000
--- a/browser/components/preferences/containers.js
+++ /dev/null
@@ -1,176 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://gre/modules/Services.jsm");
-Components.utils.import("resource://gre/modules/ContextualIdentityService.jsm");
-
-const containersBundle = Services.strings.createBundle("chrome://browser/locale/preferences/containers.properties");
-
-const HTMLNS = "http://www.w3.org/1999/xhtml";
-
-let gContainersManager = {
-  icons: [
-    "fingerprint",
-    "briefcase",
-    "dollar",
-    "cart",
-    "circle"
-  ],
-
-  colors: [
-    "blue",
-    "turquoise",
-    "green",
-    "yellow",
-    "orange",
-    "red",
-    "pink",
-    "purple"
-  ],
-
-  onLoad() {
-    let params = window.arguments[0] || {};
-    this.init(params);
-  },
-
-  init(aParams) {
-    this.userContextId = aParams.userContextId || null;
-    this.identity = aParams.identity;
-
-    if (aParams.windowTitle) {
-      document.title = aParams.windowTitle;
-    }
-
-    const iconWrapper = document.getElementById("iconWrapper");
-    iconWrapper.appendChild(this.createIconButtons());
-
-    const colorWrapper = document.getElementById("colorWrapper");
-    colorWrapper.appendChild(this.createColorSwatches());
-
-    if (this.identity.name) {
-      const name = document.getElementById("name");
-      name.value = this.identity.name;
-      this.checkForm();
-    }
-
-    this.setLabelsMinWidth();
-
-    // This is to prevent layout jank caused by the svgs and outlines rendering at different times
-    document.getElementById("containers-content").removeAttribute("hidden");
-  },
-
-  setLabelsMinWidth() {
-    const labelMinWidth = containersBundle.GetStringFromName("containers.labelMinWidth");
-    const labels = [
-      document.getElementById("nameLabel"),
-      document.getElementById("iconLabel"),
-      document.getElementById("colorLabel")
-    ];
-    for (let label of labels) {
-      label.style.minWidth = labelMinWidth;
-    }
-  },
-
-  uninit() {
-  },
-
-  // Check if name string as to if the form can be submitted
-  checkForm() {
-    const name = document.getElementById("name");
-    let btnApplyChanges = document.getElementById("btnApplyChanges");
-    if (!name.value) {
-      btnApplyChanges.setAttribute("disabled", true);
-    } else {
-      btnApplyChanges.removeAttribute("disabled");
-    }
-  },
-
-  createIconButtons(defaultIcon) {
-    let radiogroup = document.createElement("radiogroup");
-    radiogroup.setAttribute("id", "icon");
-    radiogroup.className = "icon-buttons";
-
-    for (let icon of this.icons) {
-      let iconSwatch = document.createElement("radio");
-      iconSwatch.id = "iconbutton-" + icon;
-      iconSwatch.name = "icon";
-      iconSwatch.type = "radio";
-      iconSwatch.value = icon;
-
-      if (this.identity.icon && this.identity.icon == icon) {
-        iconSwatch.setAttribute("selected", true);
-      }
-
-      iconSwatch.setAttribute("label",
-        containersBundle.GetStringFromName(`containers.${icon}.label`));
-      let iconElement = document.createElement("hbox");
-      iconElement.className = 'userContext-icon';
-      iconElement.setAttribute("data-identity-icon", icon);
-
-      iconSwatch.appendChild(iconElement);
-      radiogroup.appendChild(iconSwatch);
-    }
-
-    return radiogroup;
-  },
-
-  createColorSwatches(defaultColor) {
-    let radiogroup = document.createElement("radiogroup");
-    radiogroup.setAttribute("id", "color");
-
-    for (let color of this.colors) {
-      let colorSwatch = document.createElement("radio");
-      colorSwatch.id = "colorswatch-" + color;
-      colorSwatch.name = "color";
-      colorSwatch.type = "radio";
-      colorSwatch.value = color;
-
-      if (this.identity.color && this.identity.color == color) {
-        colorSwatch.setAttribute("selected", true);
-      }
-
-      colorSwatch.setAttribute("label",
-        containersBundle.GetStringFromName(`containers.${color}.label`));
-      let iconElement = document.createElement("hbox");
-      iconElement.className = 'userContext-icon';
-      iconElement.setAttribute("data-identity-icon", "circle");
-      iconElement.setAttribute("data-identity-color", color);
-
-      colorSwatch.appendChild(iconElement);
-      radiogroup.appendChild(colorSwatch);
-    }
-    return radiogroup;
-  },
-
-  onApplyChanges() {
-    let icon = document.getElementById("icon").value;
-    let color = document.getElementById("color").value;
-    let name = document.getElementById("name").value;
-
-    if (this.icons.indexOf(icon) == -1) {
-      throw "Internal error. The icon value doesn't match.";
-    }
-
-    if (this.colors.indexOf(color) == -1) {
-      throw "Internal error. The color value doesn't match.";
-    }
-
-    if (this.userContextId) {
-      ContextualIdentityService.update(this.userContextId,
-        name,
-        icon,
-        color);
-    } else {
-      ContextualIdentityService.create(name,
-        icon,
-        color);
-    }
-    window.parent.location.reload()
-  },
-
-  onWindowKeyPress(aEvent) {
-    if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
-      window.close();
-  }
-}
diff --git a/browser/components/preferences/containers.xul b/browser/components/preferences/containers.xul
deleted file mode 100644
index 62a775fe4..000000000
--- a/browser/components/preferences/containers.xul
+++ /dev/null
@@ -1,52 +0,0 @@
-<?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/" type="text/css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/containers.css" type="text/css"?>
-
-<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/containers.dtd" >
-
-<window id="ContainersDialog" class="windowDialog"
-        windowtype="Browser:Permissions"
-        title="&window.title;"
-        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-        style="width: &window.width;;"
-        onload="gContainersManager.onLoad();"
-        onunload="gContainersManager.uninit();"
-        persist="screenX screenY width height"
-        onkeypress="gContainersManager.onWindowKeyPress(event);">
-
-  <script src="chrome://global/content/treeUtils.js"/>
-  <script src="chrome://browser/content/preferences/containers.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 largeDialogContainer" flex="1" hidden="true" id="containers-content">
-    <description id="permissionsText" control="url"/>
-    <separator class="thin"/>
-    <hbox align="start">
-      <label id="nameLabel" control="url" value="&name.label;" accesskey="&name.accesskey;"/>
-      <textbox id="name" flex="1" onkeyup="gContainersManager.checkForm();" />
-    </hbox>
-    <hbox align="center" id="iconWrapper">
-      <label id="iconLabel" control="url" value="&icon.label;" accesskey="&icon.accesskey;"/>
-    </hbox>
-    <hbox align="center" id="colorWrapper">
-      <label id="colorLabel" control="url" value="&color.label;" accesskey="&color.accesskey;"/>
-    </hbox>
-  </vbox>
-  <vbox>
-    <hbox class="actionButtons" align="right" flex="1">
-      <button id="btnApplyChanges" disabled="true" oncommand="gContainersManager.onApplyChanges();" icon="save"
-              label="&button.ok.label;" accesskey="&button.ok.accesskey;"/>
-    </hbox>
-  </vbox>
-</window>
diff --git a/browser/components/preferences/cookies.js b/browser/components/preferences/cookies.js
deleted file mode 100644
index 921eee4c0..000000000
--- a/browser/components/preferences/cookies.js
+++ /dev/null
@@ -1,963 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/AppConstants.jsm");
-Components.utils.import("resource://gre/modules/PluralForm.jsm");
-Components.utils.import("resource://gre/modules/Services.jsm")
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "ContextualIdentityService",
-                                  "resource://gre/modules/ContextualIdentityService.jsm");
-
-var gCookiesWindow = {
-  _cm               : Components.classes["@mozilla.org/cookiemanager;1"]
-                                .getService(Components.interfaces.nsICookieManager),
-  _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();
-
-    if (!Services.prefs.getBoolPref("privacy.userContext.enabled")) {
-      document.getElementById("userContextRow").hidden = true;
-    }
-  },
-
-  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);
-  },
-
-  _isPrivateCookie: function (aCookie) {
-      let { userContextId } = aCookie.originAttributes;
-      if (!userContextId) {
-        // Default identity is public.
-        return false;
-      }
-      return !ContextualIdentityService.getIdentityFromId(userContextId).public;
-  },
-
-  observe: function (aCookie, aTopic, aData) {
-    if (aTopic != "cookie-changed")
-      return;
-
-    if (aCookie instanceof Components.interfaces.nsICookie) {
-      if (this._isPrivateCookie(aCookie)) {
-        return;
-      }
-
-      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 (let host of this._hostOrder) {
-        ++rowIndex;
-        var hostItem = this._hosts[host];
-        if (host == strippedHost) {
-          // Host matches, look for the cookie within this Host collection
-          // and update its data
-          for (let currCookie of hostItem.cookies) {
-            ++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;
-            }
-          }
-        }
-        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 (let currCookie of this._view._filterSet) {
-        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 (let i = start; i < gCookiesWindow._hostOrder.length; ++i) { // var host in gCookiesWindow._hosts) {
-        let 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 (let cookie of currHost.cookies) {
-              if (count == aIndex) {
-                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 (let k = cacheStart; k < count; k++)
-          this._cacheItems[k] = cacheEntry;
-        this._cacheValid = count - 1;
-      }
-      return null;
-    },
-
-    _removeItemAtIndex: function (aIndex, aCount) {
-      let 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 (let i = aIndex; i < aIndex + removeCount; ++i) {
-          let item = this._filterSet[i];
-          let parent = gCookiesWindow._hosts[item.rawHost];
-          for (let j = 0; j < parent.cookies.length; ++j) {
-            if (item == parent.cookies[j]) {
-              parent.cookies.splice(j, 1);
-              break;
-            }
-          }
-        }
-        this._filterSet.splice(aIndex, removeCount);
-        return;
-      }
-
-      let item = this._getItemAtIndex(aIndex);
-      if (!item) return;
-      this._invalidateCache(aIndex - 1);
-      if (item.container) {
-        gCookiesWindow._hosts[item.rawHost] = null;
-      } else {
-        let parent = this._getItemAtIndex(item.parentIndex);
-        for (let i = 0; i < parent.cookies.length; ++i) {
-          let 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 (let i = aIndex + 1; i < this.rowCount; ++i) {
-              var subsequent = this._getItemAtIndex(i);
-              if (subsequent.container)
-                return true;
-            }
-            return false;
-          }
-          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 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) {
-        if (this._isPrivateCookie(cookie)) {
-          continue;
-        }
-
-        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);
-      const locale = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
-                     .getService(Components.interfaces.nsIXULChromeRegistry)
-                     .getSelectedLocale("global", true);
-      const dtOptions = { year: 'numeric', month: 'long', day: 'numeric',
-                          hour: 'numeric', minute: 'numeric', second: 'numeric' };
-      return date.toLocaleString(locale, dtOptions);
-    }
-    return this._bundle.getString("expireAtEndOfSession");
-  },
-
-  _getUserContextString: function(aUserContextId) {
-    if (parseInt(aUserContextId) == 0) {
-      return this._bundle.getString("defaultUserContextLabel");
-    }
-
-    return ContextualIdentityService.getUserContextLabel(aUserContextId);
-  },
-
-  _updateCookieData: function (aItem) {
-    var seln = this._view.selection;
-    var ids = ["name", "value", "host", "path", "isSecure", "expires", "userContext"];
-    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"),
-                     userContext: this._getUserContextString(aItem.originAttributes.userContextId) };
-      for (let id of ids) {
-        document.getElementById(id).disabled = false;
-      }
-    }
-    else {
-      var noneSelected = this._bundle.getString("noCookieSelected");
-      properties = { name: noneSelected, value: noneSelected, host: noneSelected,
-                     path: noneSelected, expires: noneSelected,
-                     isSecure: noneSelected, userContext: noneSelected };
-      for (let id of ids) {
-        document.getElementById(id).disabled = true;
-      }
-    }
-    for (let property in properties)
-      document.getElementById(property).value = properties[property];
-  },
-
-  onCookieSelected: function () {
-    var item;
-    var seln = this._tree.view.selection;
-    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 (let i = 0; i < rangeCount; ++i) {
-      var min = {}; var max = {};
-      seln.getRangeAt(i, min, max);
-      for (let j = min.value; j <= max.value; ++j) {
-        item = this._view._getItemAtIndex(j);
-        if (!item) continue;
-        if (item.container)
-          selectedCookieCount += item.cookies.length;
-        else if (!item.container)
-          ++selectedCookieCount;
-      }
-    }
-
-    let buttonLabel = this._bundle.getString("removeSelectedCookies.label");
-    let removeSelectedCookies = document.getElementById("removeSelectedCookies");
-    removeSelectedCookies.label = PluralForm.get(selectedCookieCount, buttonLabel)
-                                            .replace("#1", selectedCookieCount);
-
-    removeSelectedCookies.disabled = !(seln.count > 0);
-  },
-
-  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 (let item of deleteItems) {
-      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 (let i = rangeCount - 1; i >= 0; --i) {
-        var min = {}; var max = {};
-        seln.getRangeAt(i, min, max);
-        nextSelected = min.value;
-        for (let 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 (let 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) {
-      this.deleteCookie();
-    } else if (AppConstants.platform == "macosx" &&
-               aEvent.keyCode == KeyEvent.DOM_VK_BACK_SPACE) {
-      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 (let 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();
-    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 (let openIndex of this._openIndices) {
-      this._view.toggleOpenState(openIndex);
-    }
-    this._openIndices = [];
-
-    // Restore selection
-    this._view.selection.clearSelection();
-    for (let range of this._lastSelectedRanges) {
-      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 (let i = 0; i < gCookiesWindow._hostOrder.length; ++i) { // var host in gCookiesWindow._hosts) {
-      let currHost = gCookiesWindow._hosts[gCookiesWindow._hostOrder[i]]; // gCookiesWindow._hosts[host];
-      if (!currHost) continue;
-      for (let cookie of currHost.cookies) {
-        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 (let 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 (let 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/browser/components/preferences/cookies.xul b/browser/components/preferences/cookies.xul
deleted file mode 100644
index bd60d9346..000000000
--- a/browser/components/preferences/cookies.xul
+++ /dev/null
@@ -1,109 +0,0 @@
-<?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 largeDialogContainer">
-    <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>
-          <row align="center" id="userContextRow">
-            <hbox pack="end"><label id="userContextLabel" control="userContext" value="&props.container.label;"/></hbox>
-            <textbox id="userContext" 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>
-  </hbox>
-</window>
diff --git a/browser/components/preferences/donottrack.xul b/browser/components/preferences/donottrack.xul
deleted file mode 100644
index d0631ac4f..000000000
--- a/browser/components/preferences/donottrack.xul
+++ /dev/null
@@ -1,43 +0,0 @@
-<?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/"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css"?>
-
-<!DOCTYPE prefwindow [
-<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
-<!ENTITY % doNotTrackDTD SYSTEM "chrome://browser/locale/preferences/donottrack.dtd">
-%brandDTD;
-%doNotTrackDTD;
-]>
-
-<prefwindow id="DoNotTrackDialog" type="child"
-            xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-            xmlns:html="http://www.w3.org/1999/xhtml"
-            title="&window.title;"
-            style="width: &window.width;; height: &window.height;;"
-            dlgbuttons="accept,cancel">
-  <prefpane>
-    <preferences>
-      <preference id="privacy.donottrackheader.enabled"
-                  name="privacy.donottrackheader.enabled"
-                  type="bool"/>
-    </preferences>
-    <hbox align="center" pack="start">
-      <!-- Work around focus ring not showing properly. -->
-      <spacer style="width: 1em;"/>
-      <checkbox label="&doNotTrackCheckbox2.label;"
-                accesskey="&doNotTrackCheckbox2.accesskey;"
-                preference="privacy.donottrackheader.enabled"/>
-    </hbox>
-    <description flex="1" class="doNotTrackLearnMore">
-      &doNotTrackTPInfo.description;
-      <label class="text-link"
-             value="&doNotTrackLearnMore.label;"
-             href="https://www.mozilla.org/dnt"/>
-    </description>
-  </prefpane>
-</prefwindow>
diff --git a/browser/components/preferences/fonts.js b/browser/components/preferences/fonts.js
deleted file mode 100644
index bf6f43159..000000000
--- a/browser/components/preferences/fonts.js
+++ /dev/null
@@ -1,105 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-/* import-globals-from ../../../toolkit/mozapps/preferences/fontbuilder.js */
-
-// 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;
-  },
-
-  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 ()
-  {
-    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 true;
-    }
-
-    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/browser/components/preferences/fonts.xul b/browser/components/preferences/fonts.xul
deleted file mode 100644
index 26b1c6547..000000000
--- a/browser/components/preferences/fonts.xul
+++ /dev/null
@@ -1,280 +0,0 @@
-<?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-math"          label="&font.langGroup.math;"/>
-            <menuitem value="x-orya"          label="&font.langGroup.odia;"/>
-            <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" delayprefsave="true">
-              <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;" delayprefsave="true"
-                      onsyncfrompreference="return FontBuilder.readFontSelection(this);"/>
-            <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;" delayprefsave="true"
-                      onsyncfrompreference="return FontBuilder.readFontSelection(this);"/>
-            <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" delayprefsave="true"
-                      onsyncfrompreference="return FontBuilder.readFontSelection(this);"/>
-            <hbox align="center" pack="end">
-              <label value="&size.label;"
-                     accesskey="&sizeMonospace.accesskey;"
-                     control="sizeMono"/>
-            </hbox>  
-            <menulist id="sizeMono" delayprefsave="true">
-              <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>
-
-    <!-- Text Encoding -->
-    <groupbox>
-      <caption label="&languages.customize.Fallback2.grouplabel;"/>
-      <description>&languages.customize.Fallback2.desc;</description>
-      <hbox align="center">
-        <label value="&languages.customize.Fallback2.label;"
-               accesskey="&languages.customize.Fallback2.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/browser/components/preferences/handlers.css b/browser/components/preferences/handlers.css
deleted file mode 100644
index 6af75a08b..000000000
--- a/browser/components/preferences/handlers.css
+++ /dev/null
@@ -1,37 +0,0 @@
-/* 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/. */
-
-#handlersView > richlistitem {
-  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#handler");
-}
-
-#handlersView > richlistitem[selected="true"] {
-  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#handler-selected");
-}
-
-#containersView > richlistitem {
-  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#container");
-}
-
-/**
- * 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");
-}
-
-/* Apply crisp rendering for favicons at exactly 2dppx resolution */
-@media (resolution: 2dppx) {
-  #handlersView > richlistitem,
-  .actionsMenu > menupopup > menuitem > .menu-iconic-left {
-    image-rendering: -moz-crisp-edges;
-  }
-}
diff --git a/browser/components/preferences/handlers.xml b/browser/components/preferences/handlers.xml
deleted file mode 100644
index 0c629d759..000000000
--- a/browser/components/preferences/handlers.xml
+++ /dev/null
@@ -1,105 +0,0 @@
-<?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/. -->
-<!-- import-globals-from in-content/applications.js -->
-
-<!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="container">
-    <content>
-      <xul:hbox flex="1" equalsize="always">
-        <xul:hbox flex="1" align="center">
-          <xul:hbox xbl:inherits="data-identity-icon=containerIcon,data-identity-color=containerColor" height="24" width="24" class="userContext-icon"/>
-          <xul:label flex="1" crop="end" xbl:inherits="value=containerName"/>
-        </xul:hbox>
-        <xul:hbox flex="1" align="right">
-          <xul:button anonid="preferencesButton"
-                      xbl:inherits="value=userContextId"
-                      onclick="gContainersPane.onPeferenceClick(event.originalTarget)">
-            Preferences
-          </xul:button>
-          <xul:button anonid="removeButton"
-                      xbl:inherits="value=userContextId"
-                      onclick="gContainersPane.onRemoveClick(event.originalTarget)">
-            Remove
-          </xul:button>
-        </xul:hbox>
-      </xul:hbox>
-    </content>
-  </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/browser/components/preferences/in-content/advanced.js b/browser/components/preferences/in-content/advanced.js
deleted file mode 100644
index 5f9458eee..000000000
--- a/browser/components/preferences/in-content/advanced.js
+++ /dev/null
@@ -1,767 +0,0 @@
-/* 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/. */
-
-// Load DownloadUtils module for convertByteUnits
-Components.utils.import("resource://gre/modules/DownloadUtils.jsm");
-Components.utils.import("resource://gre/modules/LoadContextInfo.jsm");
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-
-const PREF_UPLOAD_ENABLED = "datareporting.healthreport.uploadEnabled";
-
-var gAdvancedPane = {
-  _inited: false,
-
-  /**
-   * Brings the appropriate tab to the front and initializes various bits of UI.
-   */
-  init: function ()
-  {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gAdvancedPane));
-    }
-
-    this._inited = true;
-    var advancedPrefs = document.getElementById("advancedPrefs");
-
-    var preference = document.getElementById("browser.preferences.advanced.selectedTabIndex");
-    if (preference.value !== null)
-        advancedPrefs.selectedIndex = preference.value;
-
-    if (AppConstants.MOZ_UPDATER) {
-      let onUnload = function () {
-        window.removeEventListener("unload", onUnload, false);
-        Services.prefs.removeObserver("app.update.", this);
-      }.bind(this);
-      window.addEventListener("unload", onUnload, false);
-      Services.prefs.addObserver("app.update.", this, false);
-      this.updateReadPrefs();
-    }
-    this.updateOfflineApps();
-    this.initTelemetry();
-    if (AppConstants.MOZ_TELEMETRY_REPORTING) {
-      this.initSubmitHealthReport();
-    }
-    this.updateOnScreenKeyboardVisibility();
-    this.updateCacheSizeInputField();
-    this.updateActualCacheSize();
-    this.updateActualAppCacheSize();
-
-    setEventListener("layers.acceleration.disabled", "change",
-                     gAdvancedPane.updateHardwareAcceleration);
-    setEventListener("advancedPrefs", "select",
-                     gAdvancedPane.tabSelectionChanged);
-    if (AppConstants.MOZ_TELEMETRY_REPORTING) {
-      setEventListener("submitHealthReportBox", "command",
-                       gAdvancedPane.updateSubmitHealthReport);
-    }
-
-    setEventListener("connectionSettings", "command",
-                     gAdvancedPane.showConnections);
-    setEventListener("clearCacheButton", "command",
-                     gAdvancedPane.clearCache);
-    setEventListener("clearOfflineAppCacheButton", "command",
-                     gAdvancedPane.clearOfflineAppCache);
-    setEventListener("offlineNotifyExceptions", "command",
-                     gAdvancedPane.showOfflineExceptions);
-    setEventListener("offlineAppsList", "select",
-                     gAdvancedPane.offlineAppSelected);
-    let bundlePrefs = document.getElementById("bundlePreferences");
-    document.getElementById("offlineAppsList")
-            .style.height = bundlePrefs.getString("offlineAppsList.height");
-    setEventListener("offlineAppsListRemove", "command",
-                     gAdvancedPane.removeOfflineApp);
-    if (AppConstants.MOZ_UPDATER) {
-      setEventListener("updateRadioGroup", "command",
-                       gAdvancedPane.updateWritePrefs);
-      setEventListener("showUpdateHistory", "command",
-                       gAdvancedPane.showUpdates);
-    }
-    setEventListener("viewCertificatesButton", "command",
-                     gAdvancedPane.showCertificates);
-    setEventListener("viewSecurityDevicesButton", "command",
-                     gAdvancedPane.showSecurityDevices);
-    setEventListener("cacheSize", "change",
-                     gAdvancedPane.updateCacheSizePref);
-
-    if (AppConstants.MOZ_WIDGET_GTK) {
-      // GTK tabbox' allow the scroll wheel to change the selected tab,
-      // but we don't want this behavior for the in-content preferences.
-      let tabsElement = document.getElementById("tabsElement");
-      tabsElement.addEventListener("DOMMouseScroll", event => {
-        event.stopPropagation();
-      }, true);
-    }
-  },
-
-  /**
-   * 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");
-
-    // tabSelectionChanged gets called twice due to the selectedIndex being set
-    // by both the selectedItem and selectedPanel callstacks. This guard is used
-    // to prevent double-counting in Telemetry.
-    if (preference.valueFromPreferences != advancedPrefs.selectedIndex) {
-      Services.telemetry
-              .getHistogramById("FX_PREFERENCES_CATEGORY_OPENED")
-              .add(telemetryBucketForCategory("advanced"));
-    }
-
-    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
-   * ui.osk.enabled
-   * - when set to true, subject to other conditions, we may sometimes invoke
-   *   an on-screen keyboard when a text input is focused.
-   *   (Currently Windows-only, and depending on prefs, may be Windows-8-only)
-   * 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");
-    if (checkbox.checked) {
-      if (this._storedSpellCheck == 2) {
-        return 2;
-      }
-      return 1;
-    }
-    return 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()
-  {
-    if (AppConstants.platform = "win") {
-      var fromPref = document.getElementById("layers.acceleration.disabled");
-      var toPref = document.getElementById("gfx.direct2d.disabled");
-      toPref.value = fromPref.value;
-    }
-  },
-
-  // DATA CHOICES TAB
-
-  /**
-   * 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");
-    }
-  },
-
-  /**
-   *
-   */
-  initSubmitCrashes: function ()
-  {
-    this._setupLearnMoreLink("toolkit.crashreporter.infoURL",
-                             "crashReporterLearnMore");
-  },
-
-  /**
-   * The preference/checkbox is configured in XUL.
-   *
-   * In all cases, set up the Learn More link sanely.
-   */
-  initTelemetry: function ()
-  {
-    if (AppConstants.MOZ_TELEMETRY_REPORTING) {
-      this._setupLearnMoreLink("toolkit.telemetry.infoURL", "telemetryLearnMore");
-    }
-  },
-
-  /**
-   * Set the status of the telemetry controls based on the input argument.
-   * @param {Boolean} aEnabled False disables the controls, true enables them.
-   */
-  setTelemetrySectionEnabled: function (aEnabled)
-  {
-    if (AppConstants.MOZ_TELEMETRY_REPORTING) {
-      // If FHR is disabled, additional data sharing should be disabled as well.
-      let disabled = !aEnabled;
-      document.getElementById("submitTelemetryBox").disabled = disabled;
-      if (disabled) {
-        // If we disable FHR, untick the telemetry checkbox.
-        Services.prefs.setBoolPref("toolkit.telemetry.enabled", false);
-      }
-      document.getElementById("telemetryDataDesc").disabled = disabled;
-    }
-  },
-
-  /**
-   * Initialize the health report service reference and checkbox.
-   */
-  initSubmitHealthReport: function () {
-    if (AppConstants.MOZ_TELEMETRY_REPORTING) {
-      this._setupLearnMoreLink("datareporting.healthreport.infoURL", "FHRLearnMore");
-
-      let checkbox = document.getElementById("submitHealthReportBox");
-
-      if (Services.prefs.prefIsLocked(PREF_UPLOAD_ENABLED)) {
-        checkbox.setAttribute("disabled", "true");
-        return;
-      }
-
-      checkbox.checked = Services.prefs.getBoolPref(PREF_UPLOAD_ENABLED);
-      this.setTelemetrySectionEnabled(checkbox.checked);
-    }
-  },
-
-  /**
-   * Update the health report preference with state from checkbox.
-   */
-  updateSubmitHealthReport: function () {
-    if (AppConstants.MOZ_TELEMETRY_REPORTING) {
-      let checkbox = document.getElementById("submitHealthReportBox");
-      Services.prefs.setBoolPref(PREF_UPLOAD_ENABLED, checkbox.checked);
-      this.setTelemetrySectionEnabled(checkbox.checked);
-    }
-  },
-
-  updateOnScreenKeyboardVisibility() {
-    if (AppConstants.platform == "win") {
-      let minVersion = Services.prefs.getBoolPref("ui.osk.require_win10") ? 10 : 6.2;
-      if (Services.vc.compare(Services.sysinfo.getProperty("version"), minVersion) >= 0) {
-        document.getElementById("useOnScreenKeyboard").hidden = false;
-      }
-    }
-  },
-
-  // 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 ()
-  {
-    gSubDialog.open("chrome://browser/content/preferences/connection.xul");
-  },
-
-  // Retrieves the amount of space currently used by disk cache
-  updateActualCacheSize: function ()
-  {
-    var actualSizeLabel = document.getElementById("actualDiskCacheSize");
-    var prefStrBundle = document.getElementById("bundlePreferences");
-
-    // Needs to root the observer since cache service keeps only a weak reference.
-    this.observer = {
-      onNetworkCacheDiskConsumption: function(consumption) {
-        var size = DownloadUtils.convertByteUnits(consumption);
-        // The XBL binding for the string bundle may have been destroyed if
-        // the page was closed before this callback was executed.
-        if (!prefStrBundle.getFormattedString) {
-          return;
-        }
-        actualSizeLabel.value = prefStrBundle.getFormattedString("actualDiskCacheSize", size);
-      },
-
-      QueryInterface: XPCOMUtils.generateQI([
-        Components.interfaces.nsICacheStorageConsumptionObserver,
-        Components.interfaces.nsISupportsWeakReference
-      ])
-    };
-
-    actualSizeLabel.value = prefStrBundle.getString("actualDiskCacheSizeCalculated");
-
-    try {
-      var cacheService =
-        Components.classes["@mozilla.org/netwerk/cache-storage-service;1"]
-                  .getService(Components.interfaces.nsICacheStorageService);
-      cacheService.asyncGetDiskConsumption(this.observer);
-    } catch (e) {}
-  },
-
-  // 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");
-        // The XBL binding for the string bundle may have been destroyed if
-        // the page was closed before this callback was executed.
-        if (!prefStrBundle.getFormattedString) {
-          return;
-        }
-        var sizeStr = prefStrBundle.getFormattedString("actualAppCacheSize", sizeStrings);
-        actualSizeLabel.value = sizeStr;
-      }
-    };
-
-    try {
-      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);
-    } catch (e) {}
-  },
-
-  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 stores it in
-   * the textbox element.
-   */
-  updateCacheSizeInputField()
-  {
-    let cacheSizeElem = document.getElementById("cacheSize");
-    let cachePref = document.getElementById("browser.cache.disk.capacity");
-    cacheSizeElem.value = cachePref.value / 1024;
-    if (cachePref.locked)
-      cacheSizeElem.disabled = true;
-  },
-
-  /**
-   * Updates the cache size preference once user enters a new value.
-   * We intentionally do not set preference="browser.cache.disk.capacity"
-   * onto the textbox directly, as that would update the pref at each keypress
-   * not only after the final value is entered.
-   */
-  updateCacheSizePref()
-  {
-    let cacheSizeElem = document.getElementById("cacheSize");
-    let cachePref = document.getElementById("browser.cache.disk.capacity");
-    // Converts the cache size as specified in UI (in MB) to KB.
-    let intValue = parseInt(cacheSizeElem.value, 10);
-    cachePref.value = isNaN(intValue) ? 0 : intValue * 1024;
-  },
-
-  /**
-   * Clears the cache.
-   */
-  clearCache: function ()
-  {
-    try {
-      var cache = Components.classes["@mozilla.org/netwerk/cache-storage-service;1"]
-                            .getService(Components.interfaces.nsICacheStorageService);
-      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();
-  },
-
-  readOfflineNotify: function()
-  {
-    var pref = document.getElementById("browser.offline-apps.notify");
-    var button = document.getElementById("offlineNotifyExceptions");
-    button.disabled = !pref.value;
-    return pref.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") };
-    gSubDialog.open("chrome://browser/content/preferences/permissions.xul",
-                    null, params);
-  },
-
-  // XXX: duplicated in browser.js
-  _getOfflineAppUsage(perm, groups) {
-    let cacheService = Cc["@mozilla.org/network/application-cache-service;1"].
-                       getService(Ci.nsIApplicationCacheService);
-    if (!groups) {
-      try {
-        groups = cacheService.getGroups();
-      } catch (ex) {
-        return 0;
-      }
-    }
-
-    let usage = 0;
-    for (let group of groups) {
-      let uri = Services.io.newURI(group, null, null);
-      if (perm.matchesURI(uri, true)) {
-        let cache = cacheService.getActiveCache(group);
-        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 groups;
-    try {
-      var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
-                         getService(Components.interfaces.nsIApplicationCacheService);
-      groups = cacheService.getGroups();
-    } catch (e) {
-      return;
-    }
-
-    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
-   * app.update.auto
-   * - true if updates should be automatically downloaded and installed and
-   * false if the user should be asked what he wants to do when an update is
-   * available
-   * 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
-   */
-
-  /**
-   * Selects the item of the radiogroup based on the pref values and locked
-   * states.
-   *
-   * UI state matrix for update preference conditions
-   *
-   * UI Components:                              Preferences
-   * Radiogroup                                  i   = app.update.enabled
-   *                                             ii  = app.update.auto
-   *
-   * 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*
-   */
-  updateReadPrefs: function ()
-  {
-    if (AppConstants.MOZ_UPDATER) {
-      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
-      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;
-
-      if (AppConstants.MOZ_MAINTENANCE_SERVICE) {
-        // Check to see if the maintenance service is installed.
-        // If it is don't show the preference at all.
-        var installed;
-        try {
-          var wrk = Components.classes["@mozilla.org/windows-registry-key;1"]
-                    .createInstance(Components.interfaces.nsIWindowsRegKey);
-          wrk.open(wrk.ROOT_KEY_LOCAL_MACHINE,
-                   "SOFTWARE\\Mozilla\\MaintenanceService",
-                   wrk.ACCESS_READ | wrk.WOW64_64);
-          installed = wrk.readIntValue("Installed");
-          wrk.close();
-        } catch (e) {
-        }
-        if (installed != 1) {
-          document.getElementById("useService").hidden = true;
-        }
-      }
-    }
-  },
-
-  /**
-   * Sets the pref values based on the selected item of the radiogroup.
-   */
-  updateWritePrefs: function ()
-  {
-    if (AppConstants.MOZ_UPDATER) {
-      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;
-      }
-    }
-  },
-
-  /**
-   * Displays the history of installed updates.
-   */
-  showUpdates: function ()
-  {
-    gSubDialog.open("chrome://mozapps/content/update/history.xul");
-  },
-
-  // ENCRYPTION 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 ()
-  {
-    gSubDialog.open("chrome://pippki/content/certManager.xul");
-  },
-
-  /**
-   * Displays a dialog from which the user can manage his security devices.
-   */
-  showSecurityDevices: function ()
-  {
-    gSubDialog.open("chrome://pippki/content/device_manager.xul");
-  },
-
-  observe: function (aSubject, aTopic, aData) {
-    if (AppConstants.MOZ_UPDATER) {
-      switch (aTopic) {
-        case "nsPref:changed":
-          this.updateReadPrefs();
-          break;
-      }
-    }
-  },
-};
diff --git a/browser/components/preferences/in-content/advanced.xul b/browser/components/preferences/in-content/advanced.xul
deleted file mode 100644
index 4973f8e09..000000000
--- a/browser/components/preferences/in-content/advanced.xul
+++ /dev/null
@@ -1,398 +0,0 @@
-# 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/.
-
-<!-- Advanced panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/advanced.js"/>
-
-<preferences id="advancedPreferences" hidden="true" data-category="paneAdvanced">
-  <preference id="browser.preferences.advanced.selectedTabIndex"
-              name="browser.preferences.advanced.selectedTabIndex"
-              type="int"/>
-
-  <!-- General tab -->
-  <preference id="accessibility.browsewithcaret"
-              name="accessibility.browsewithcaret"
-              type="bool"/>
-  <preference id="accessibility.typeaheadfind"
-              name="accessibility.typeaheadfind"
-              type="bool"/>
-  <preference id="accessibility.blockautorefresh"
-              name="accessibility.blockautorefresh"
-              type="bool"/>
-#ifdef XP_WIN
-  <preference id="ui.osk.enabled"
-              name="ui.osk.enabled"
-              type="bool"/>
-#endif
-
-  <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"/>
-#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 MOZ_TELEMETRY_REPORTING
-  <preference id="toolkit.telemetry.enabled"
-              name="toolkit.telemetry.enabled"
-              type="bool"/>
-#endif
-
-  <!-- Network tab -->
-  <preference id="browser.cache.disk.capacity"
-              name="browser.cache.disk.capacity"
-              type="int"/>
-  <preference id="browser.offline-apps.notify"
-              name="browser.offline-apps.notify"
-              type="bool"/>
-
-  <preference id="browser.cache.disk.smart_size.enabled"
-              name="browser.cache.disk.smart_size.enabled"
-              inverted="true"
-              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.disable_button.showUpdateHistory"
-              name="app.update.disable_button.showUpdateHistory"
-              type="bool"/>
-
-#ifdef MOZ_MAINTENANCE_SERVICE
-  <preference id="app.update.service.enabled"
-              name="app.update.service.enabled"
-              type="bool"/>
-#endif
-#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"/>
-</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"/>
-
-<hbox id="header-advanced"
-      class="header"
-      hidden="true"
-      data-category="paneAdvanced">
-  <label class="header-name" flex="1">&paneAdvanced.title;</label>
-  <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-<tabbox id="advancedPrefs"
-        handleCtrlTab="false"
-        handleCtrlPageUpDown="false"
-        flex="1"
-        data-category="paneAdvanced"
-        hidden="true">
-
-  <tabs id="tabsElement">
-    <tab id="generalTab" label="&generalTab.label;"/>
-#ifdef MOZ_DATA_REPORTING
-    <tab id="dataChoicesTab" label="&dataChoicesTab.label;"/>
-#endif
-    <tab id="networkTab" label="&networkTab.label;"/>
-    <tab id="updateTab" label="&updateTab.label;"/>
-    <tab id="encryptionTab" label="&certificateTab.label;"/>
-  </tabs>
-
-  <tabpanels flex="1">
-
-    <!-- General -->
-    <tabpanel id="generalPanel" orient="vertical">
-      <!-- Accessibility -->
-      <groupbox id="accessibilityGroup" align="start">
-        <caption><label>&accessibility.label;</label></caption>
-
-#ifdef XP_WIN
-        <checkbox id="useOnScreenKeyboard"
-                  hidden="true"
-                  label="&useOnScreenKeyboard.label;"
-                  accesskey="&useOnScreenKeyboard.accesskey;"
-                  preference="ui.osk.enabled"/>
-#endif
-        <checkbox id="useCursorNavigation"
-                  label="&useCursorNavigation.label;"
-                  accesskey="&useCursorNavigation.accesskey;"
-                  preference="accessibility.browsewithcaret"/>
-        <checkbox id="searchStartTyping"
-                  label="&searchStartTyping.label;"
-                  accesskey="&searchStartTyping.accesskey;"
-                  preference="accessibility.typeaheadfind"/>
-        <checkbox id="blockAutoRefresh"
-                  label="&blockAutoRefresh.label;"
-                  accesskey="&blockAutoRefresh.accesskey;"
-                  preference="accessibility.blockautorefresh"/>
-      </groupbox>
-      <!-- Browsing -->
-      <groupbox id="browsingGroup" align="start">
-        <caption><label>&browsing.label;</label></caption>
-
-        <checkbox id="useAutoScroll"
-                  label="&useAutoScroll.label;"
-                  accesskey="&useAutoScroll.accesskey;"
-                  preference="general.autoScroll"/>
-        <checkbox id="useSmoothScrolling"
-                  label="&useSmoothScrolling.label;"
-                  accesskey="&useSmoothScrolling.accesskey;"
-                  preference="general.smoothScroll"/>
-        <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>
-    </tabpanel>
-#ifdef MOZ_DATA_REPORTING
-    <!-- Data Choices -->
-    <tabpanel id="dataChoicesPanel" orient="vertical">
-#ifdef MOZ_TELEMETRY_REPORTING
-      <groupbox>
-        <caption>
-          <checkbox id="submitHealthReportBox" label="&enableHealthReport.label;"
-                    accesskey="&enableHealthReport.accesskey;"/>
-        </caption>
-        <vbox>
-          <hbox class="indent">
-            <label flex="1">&healthReportDesc.label;</label>
-            <spacer flex="10"/>
-            <label id="FHRLearnMore"
-                   class="text-link">&healthReportLearnMore.label;</label>
-          </hbox>
-          <hbox class="indent">
-            <groupbox flex="1">
-              <caption>
-                <checkbox id="submitTelemetryBox" preference="toolkit.telemetry.enabled"
-                          label="&enableTelemetryData.label;"
-                          accesskey="&enableTelemetryData.accesskey;"/>
-              </caption>
-              <hbox class="indent">
-                <label id="telemetryDataDesc" flex="1">&telemetryDesc.label;</label>
-                <spacer flex="10"/>
-                <label id="telemetryLearnMore"
-                       class="text-link">&telemetryLearnMore.label;</label>
-              </hbox>
-            </groupbox>
-          </hbox>
-        </vbox>
-      </groupbox>
-#endif
-    </tabpanel>
-#endif
-
-    <!-- Network -->
-    <tabpanel id="networkPanel" orient="vertical">
-
-      <!-- Connection -->
-      <groupbox id="connectionGroup">
-        <caption><label>&connection.label;</label></caption>
-
-        <hbox align="center">
-          <description flex="1" control="connectionSettings">&connectionDesc.label;</description>
-          <button id="connectionSettings" icon="network" label="&connectionSettings.label;"
-                  accesskey="&connectionSettings.accesskey;"/>
-        </hbox>
-      </groupbox>
-
-      <!-- Cache -->
-      <groupbox id="cacheGroup">
-        <caption><label>&httpCache.label;</label></caption>
-
-        <hbox align="center">
-          <label id="actualDiskCacheSize" flex="1"/>
-          <button id="clearCacheButton" icon="clear"
-                  label="&clearCacheNow.label;" accesskey="&clearCacheNow.accesskey;"/>
-        </hbox>
-        <hbox>
-          <checkbox preference="browser.cache.disk.smart_size.enabled"
-                    id="allowSmartSize"
-                    onsyncfrompreference="return gAdvancedPane.readSmartSizeEnabled();"
-                    label="&overrideSmartCacheSize.label;"
-                    accesskey="&overrideSmartCacheSize.accesskey;"/>
-        </hbox>
-        <hbox align="center" class="indent">
-          <label id="useCacheBefore" control="cacheSize"
-                 accesskey="&limitCacheSizeBefore.accesskey;">
-            &limitCacheSizeBefore.label;
-          </label>
-          <textbox id="cacheSize" type="number" size="4" max="1024"
-                   aria-labelledby="useCacheBefore cacheSize useCacheAfter"/>
-          <label id="useCacheAfter" flex="1">&limitCacheSizeAfter.label;</label>
-        </hbox>
-      </groupbox>
-
-      <!-- Offline apps -->
-      <groupbox id="offlineGroup">
-        <caption><label>&offlineStorage2.label;</label></caption>
-
-        <hbox align="center">
-          <label id="actualAppCacheSize" flex="1"/>
-          <button id="clearOfflineAppCacheButton" icon="clear"
-                  label="&clearOfflineAppCacheNow.label;" accesskey="&clearOfflineAppCacheNow.accesskey;"/>
-        </hbox>
-        <hbox align="center">
-          <checkbox id="offlineNotify"
-                    label="&offlineNotify.label;" accesskey="&offlineNotify.accesskey;"
-                    preference="browser.offline-apps.notify"
-                    onsyncfrompreference="return gAdvancedPane.readOfflineNotify();"/>
-          <spacer flex="1"/>
-          <button id="offlineNotifyExceptions"
-                  label="&offlineNotifyExceptions.label;"
-                  accesskey="&offlineNotifyExceptions.accesskey;"/>
-        </hbox>
-        <hbox>
-          <vbox flex="1">
-            <label id="offlineAppsListLabel">&offlineAppsList2.label;</label>
-            <listbox id="offlineAppsList"
-                    flex="1"
-                    aria-labelledby="offlineAppsListLabel">
-            </listbox>
-          </vbox>
-          <vbox pack="end">
-            <button id="offlineAppsListRemove"
-                    disabled="true"
-                    label="&offlineAppsListRemove.label;"
-                    accesskey="&offlineAppsListRemove.accesskey;"/>
-          </vbox>
-        </hbox>
-      </groupbox>
-    </tabpanel>
-
-    <!-- Update -->
-    <tabpanel id="updatePanel" orient="vertical">
-#ifdef MOZ_UPDATER
-      <groupbox id="updateApp" align="start">
-        <caption><label>&updateApp.label;</label></caption>
-        <radiogroup id="updateRadioGroup" align="start">
-          <radio id="autoDesktop"
-                 value="auto"
-                 label="&updateAuto1.label;"
-                 accesskey="&updateAuto1.accesskey;"/>
-          <radio value="checkOnly"
-                label="&updateCheck.label;"
-                accesskey="&updateCheck.accesskey;"/>
-          <radio value="manual"
-                label="&updateManual.label;"
-                accesskey="&updateManual.accesskey;"/>
-        </radiogroup>
-        <separator class="thin"/>
-        <hbox>
-          <button id="showUpdateHistory"
-                  label="&updateHistory.label;"
-                  accesskey="&updateHistory.accesskey;"
-                  preference="app.update.disable_button.showUpdateHistory"/>
-        </hbox>
-
-#ifdef MOZ_MAINTENANCE_SERVICE
-        <checkbox id="useService"
-                  label="&useService.label;"
-                  accesskey="&useService.accesskey;"
-                  preference="app.update.service.enabled"/>
-#endif
-      </groupbox>
-#endif
-      <groupbox id="updateOthers" align="start">
-        <caption><label>&updateOthers.label;</label></caption>
-        <checkbox id="enableSearchUpdate"
-                  label="&enableSearchUpdate.label;"
-                  accesskey="&enableSearchUpdate.accesskey;"
-                  preference="browser.search.update"/>
-      </groupbox>
-    </tabpanel>
-
-    <!-- Certificates -->
-    <tabpanel id="encryptionPanel" orient="vertical">
-      <groupbox id="certSelection" align="start">
-        <caption><label>&certSelection.label;</label></caption>
-        <description id="CertSelectionDesc" control="certSelection">&certSelection.description;</description>
-
-        <!--
-          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.
-        -->
-        <radiogroup id="certSelection"
-                    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>
-      <separator/>
-      <checkbox id="enableOCSP"
-                label="&enableOCSP.label;"
-                accesskey="&enableOCSP.accesskey;"
-                onsyncfrompreference="return gAdvancedPane.readEnableOCSP();"
-                onsynctopreference="return gAdvancedPane.writeEnableOCSP();"
-                preference="security.OCSP.enabled"/>
-      <separator/>
-      <hbox>
-        <button id="viewCertificatesButton"
-                flex="1"
-                label="&viewCerts.label;"
-                accesskey="&viewCerts.accesskey;"
-                preference="security.disable_button.openCertManager"/>
-        <button id="viewSecurityDevicesButton"
-                flex="1"
-                label="&viewSecurityDevices.label;"
-                accesskey="&viewSecurityDevices.accesskey;"
-                preference="security.disable_button.openDeviceManager"/>
-        <hbox flex="10"/>
-      </hbox>
-    </tabpanel>
-  </tabpanels>
-</tabbox>
diff --git a/browser/components/preferences/in-content/applications.js b/browser/components/preferences/in-content/applications.js
deleted file mode 100644
index 6f2989657..000000000
--- a/browser/components/preferences/in-content/applications.js
+++ /dev/null
@@ -1,1900 +0,0 @@
-/* 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/. */
-
-"use strict";
-
-// Constants & Enumeration Values
-
-Components.utils.import('resource://gre/modules/Services.jsm');
-Components.utils.import('resource://gre/modules/AppConstants.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 TYPE_PDF = "application/pdf";
-
-const PREF_PDFJS_DISABLED = "pdfjs.disabled";
-const TOPIC_PDFJS_HANDLER_CHANGED = "pdfjs:handlerChanged";
-
-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;
-
-const ICON_URL_APP = AppConstants.platform == "linux" ?
-                     "moz-icon://dummy.exe?size=16" :
-                     "chrome://browser/skin/preferences/application.png";
-
-// 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) {
-  if (AppConstants.platform == "win") {
-    if (file instanceof Ci.nsILocalFileWin) {
-      try {
-        return file.getVersionInfoField("FileDescription");
-      } catch (e) {}
-    }
-  }
-  if (AppConstants.platform == "macosx") {
-    if (file instanceof Ci.nsILocalFileMac) {
-      try {
-        return file.bundleDisplayName;
-      } catch (e) {}
-    }
-  }
-  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;
-      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("Gecko-Content-Viewers",
-                                          this.type,
-                                          false);
-  },
-
-  enablePluginType: function() {
-    var disabledPluginTypes = this._getDisabledPluginTypes();
-
-    var type = this.type;
-    disabledPluginTypes = disabledPluginTypes.filter(v => v != type);
-
-    this._prefSvc.setCharPref(PREF_DISABLED_PLUGIN_TYPES,
-                              disabledPluginTypes.join(","));
-
-    // Update the category manager so existing browser windows update.
-    this._categoryMgr.
-      addCategoryEntry("Gecko-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: AppConstants.HAVE_SHELL_SERVICE ? getShellService() : null,
-
-  // 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 (let webHandler of webHandlers)
-      this._possibleApplicationHandlers.appendElement(webHandler, false);
-
-    return this._possibleApplicationHandlers;
-  },
-
-  __defaultApplicationHandler: undefined,
-  get _defaultApplicationHandler() {
-    if (typeof this.__defaultApplicationHandler != "undefined")
-      return this.__defaultApplicationHandler;
-
-    var defaultFeedReader = null;
-    if (AppConstants.HAVE_SHELL_SERVICE) {
-      try {
-        defaultFeedReader = this._shellSvc.defaultFeedReader;
-      }
-      catch (ex) {
-        // no default reader or _shellSvc is null
-      }
-    }
-
-    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() {
-    if (AppConstants.HAVE_SHELL_SERVICE) {
-      try {
-        if (this._shellSvc.defaultFeedReader)
-          return true;
-      }
-      catch (ex) {
-        // no default reader or _shellSvc is null
-      }
-    }
-
-    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 (let app of 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);
-  }
-};
-
-var pdfHandlerInfo = {
-  __proto__: new InternalHandlerInfoWrapper(TYPE_PDF),
-  _handlerChanged: TOPIC_PDFJS_HANDLER_CHANGED,
-  _appPrefLabel: "portableDocumentFormat",
-  get enabled() {
-    return !Services.prefs.getBoolPref(PREF_PDFJS_DISABLED);
-  },
-};
-
-
-// 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() {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gApplicationsPane));
-    }
-
-    // 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);
-
-
-    setEventListener("focusSearch1", "command", gApplicationsPane.focusFilterBox);
-    setEventListener("focusSearch2", "command", gApplicationsPane.focusFilterBox);
-    setEventListener("filter", "command", gApplicationsPane.filter);
-    setEventListener("handlersView", "select",
-      gApplicationsPane.onSelectionChanged);
-    setEventListener("typeColumn", "click", gApplicationsPane.sort);
-    setEventListener("actionColumn", "click", gApplicationsPane.sort);
-
-    // 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._loadInternalHandlers();
-    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 higher level internal handlers so they can be turned on/off in the
-   * applications menu.
-   */
-  _loadInternalHandlers: function() {
-    var internalHandlers = [pdfHandlerInfo];
-    for (let internalHandler of internalHandlers) {
-      if (internalHandler.enabled) {
-        this._handledTypes[internalHandler.type] = internalHandler;
-      }
-    }
-  },
-
-  /**
-   * 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 (let visibleType of 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]);
-      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]);
-      default:
-        throw new Error(`Unexpected preferredAction: ${aHandlerInfo.preferredAction}`);
-    }
-  },
-
-  _selectLastSelectedType: function() {
-    // If the list is disabled by the pref.downloads.disable_button.edit_actions
-    // preference being locked, then don't select the type, as that would cause
-    // it to appear selected, with a different background and an actions menu
-    // that makes it seem like you can choose an action for the type.
-    if (this._list.disabled)
-      return;
-
-    var lastSelectedType = this._list.getAttribute("lastSelectedType");
-    if (!lastSelectedType)
-      return;
-
-    var item = this._list.getElementsByAttribute("type", lastSelectedType)[0];
-    if (!item)
-      return;
-
-    this._list.selectedItem = item;
-  },
-
-  /**
-   * Whether or not the given handler app is valid.
-   *
-   * @param aHandlerApp {nsIHandlerApp} the handler app in question
-   *
-   * @returns {boolean} whether or not it's valid
-   */
-  isValidHandlerApp: function(aHandlerApp) {
-    if (!aHandlerApp)
-      return false;
-
-    if (aHandlerApp instanceof Ci.nsILocalHandlerApp)
-      return this._isValidHandlerExecutable(aHandlerApp.executable);
-
-    if (aHandlerApp instanceof Ci.nsIWebHandlerApp)
-      return aHandlerApp.uriTemplate;
-
-    if (aHandlerApp instanceof Ci.nsIWebContentHandlerInfo)
-      return aHandlerApp.uri;
-
-    return false;
-  },
-
-  _isValidHandlerExecutable: function(aExecutable) {
-    let leafName;
-    if (AppConstants.platform == "win") {
-      leafName = `${AppConstants.MOZ_APP_NAME}.exe`;
-    } else if (AppConstants.platform == "macosx") {
-      leafName = AppConstants.MOZ_MACBUNDLE_NAME;
-    } else {
-      leafName = `${AppConstants.MOZ_APP_NAME}-bin`;
-    }
-    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
-           aExecutable.leafName != leafName;
-  },
-
-  /**
-   * 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) {
-      let 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)) {
-      let 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.
-    let canOpenWithOtherApp = true;
-    if (AppConstants.platform == "win") {
-      // On Windows, selecting an application to open another application
-      // would be meaningless so we special case executables.
-      let executableType = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService)
-                                                    .getTypeFromExtension("exe");
-      canOpenWithOtherApp = handlerInfo.type != executableType;
-    }
-    if (canOpenWithOtherApp)
-    {
-      let menuItem = document.createElement("menuitem");
-      menuItem.className = "choose-app-item";
-      menuItem.addEventListener("command", function(e) {
-        gApplicationsPane.chooseApp(e);
-      });
-      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.className = "manage-app-item";
-      menuItem.addEventListener("command", function(e) {
-        gApplicationsPane.manageApp(e);
-      });
-      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(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];
-
-    let onComplete = () => {
-      // 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));
-      }
-    };
-
-    gSubDialog.open("chrome://browser/content/preferences/applicationManager.xul",
-                    "resizable=no", handlerInfo, onComplete);
-
-  },
-
-  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);
-
-    if (AppConstants.platform == "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;
-
-      let onAppSelected = () => {
-        if (this.isValidHandlerApp(params.handlerApp)) {
-          handlerApp = params.handlerApp;
-
-          // Add the app to the type's list of possible handlers.
-          handlerInfo.addPossibleApplicationHandler(handlerApp);
-        }
-
-        chooseAppCallback(handlerApp);
-      };
-
-      gSubDialog.open("chrome://global/content/appPicker.xul",
-                      null, params, onAppSelected);
-    } 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);
-    }
-  },
-
-  // 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);
-        // Explicit fall-through
-
-      // 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 in the annotations table 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 web app'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/browser/components/preferences/in-content/applications.xul b/browser/components/preferences/in-content/applications.xul
deleted file mode 100644
index 1d4723493..000000000
--- a/browser/components/preferences/in-content/applications.xul
+++ /dev/null
@@ -1,95 +0,0 @@
-# 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/.
-
-<!-- Applications panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/applications.js"/>
-
-<preferences id="feedsPreferences" hidden="true" data-category="paneApplications">
-  <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>
-
-<keyset data-category="paneApplications">
-  <!-- Ctrl+f/k focus the search box in the Applications pane.
-       These <key>s have oncommand attributes because of bug 371900. -->
-  <key key="&focusSearch1.key;" modifiers="accel" id="focusSearch1" oncommand=";"/>
-  <key key="&focusSearch2.key;" modifiers="accel" id="focusSearch2" oncommand=";"/>
-</keyset>
-
-<hbox id="header-applications"
-      class="header"
-      hidden="true"
-      data-category="paneApplications">
-  <label class="header-name" flex="1">&paneApplications.title;</label>
-  <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-<vbox id="applicationsContent"
-      data-category="paneApplications"
-      hidden="true"
-      flex="1">
-  <hbox>
-    <textbox id="filter" flex="1"
-             type="search"
-             placeholder="&filter.emptytext;"
-             aria-controls="handlersView"/>
-  </hbox>
-
-  <separator class="thin"/>
-
-  <richlistbox id="handlersView" orient="vertical" persist="lastSelectedType"
-               preference="pref.downloads.disable_button.edit_actions"
-               flex="1">
-    <listheader equalsize="always">
-        <treecol id="typeColumn" label="&typeColumn.label;" value="type"
-                 accesskey="&typeColumn.accesskey;" persist="sortDirection"
-                 flex="1" sortDirection="ascending"/>
-        <treecol id="actionColumn" label="&actionColumn2.label;" value="action"
-                 accesskey="&actionColumn2.accesskey;" persist="sortDirection"
-                 flex="1"/>
-    </listheader>
-  </richlistbox>
-</vbox>
diff --git a/browser/components/preferences/in-content/containers.js b/browser/components/preferences/in-content/containers.js
deleted file mode 100644
index 758e45fff..000000000
--- a/browser/components/preferences/in-content/containers.js
+++ /dev/null
@@ -1,73 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://gre/modules/AppConstants.jsm");
-Components.utils.import("resource://gre/modules/ContextualIdentityService.jsm");
-
-const containersBundle = Services.strings.createBundle("chrome://browser/locale/preferences/containers.properties");
-
-const defaultContainerIcon = "fingerprint";
-const defaultContainerColor = "blue";
-
-let gContainersPane = {
-
-  init() {
-    this._list = document.getElementById("containersView");
-
-    document.getElementById("backContainersLink").addEventListener("click", function () {
-      gotoPref("privacy");
-    });
-
-    this._rebuildView();
-  },
-
-  _rebuildView() {
-    const containers = ContextualIdentityService.getIdentities();
-    while (this._list.firstChild) {
-      this._list.firstChild.remove();
-    }
-    for (let container of containers) {
-      let item = document.createElement("richlistitem");
-      item.setAttribute("containerName", ContextualIdentityService.getUserContextLabel(container.userContextId));
-      item.setAttribute("containerIcon", container.icon);
-      item.setAttribute("containerColor", container.color);
-      item.setAttribute("userContextId", container.userContextId);
-
-      this._list.appendChild(item);
-    }
-  },
-
-  onRemoveClick(button) {
-    let userContextId = button.getAttribute("value");
-    ContextualIdentityService.remove(userContextId);
-    this._rebuildView();
-  },
-  onPeferenceClick(button) {
-    this.openPreferenceDialog(button.getAttribute("value"));
-  },
-
-  onAddButtonClick(button) {
-    this.openPreferenceDialog(null);
-  },
-
-  openPreferenceDialog(userContextId) {
-    let identity = {
-      name: "",
-      icon: defaultContainerIcon,
-      color: defaultContainerColor
-    };
-    let title;
-    if (userContextId) {
-      identity = ContextualIdentityService.getIdentityFromId(userContextId);
-      // This is required to get the translation string from defaults
-      identity.name = ContextualIdentityService.getUserContextLabel(identity.userContextId);
-      title = containersBundle.formatStringFromName("containers.updateContainerTitle", [identity.name], 1);
-    }
-
-    const params = { userContextId, identity, windowTitle: title };
-    gSubDialog.open("chrome://browser/content/preferences/containers.xul",
-                     null, params);
-  }
-
-};
diff --git a/browser/components/preferences/in-content/containers.xul b/browser/components/preferences/in-content/containers.xul
deleted file mode 100644
index e83bac1c3..000000000
--- a/browser/components/preferences/in-content/containers.xul
+++ /dev/null
@@ -1,54 +0,0 @@
-# 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/.
-
-<!-- Containers panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/containers.js"/>
-
-<preferences id="containerPreferences" hidden="true" data-category="paneContainer">
-  <!-- Containers -->
-  <preference id="privacy.userContext.enabled"
-              name="privacy.userContext.enabled"
-              type="bool"/>
-
-</preferences>
-
-<hbox hidden="true"
-      class="container-header-links"
-      data-category="paneContainers">
-  <label class="text-link" id="backContainersLink" value="&backLink.label;" />
-</hbox>
-
-<hbox id="header-containers"
-      class="header"
-      hidden="true"
-      data-category="paneContainers">
-  <label class="header-name" flex="1">&paneContainers.title;</label>
-  <button class="help-button"
-          aria-label="&helpButton.label;"/>
-</hbox>
-
-<!-- Containers -->
-<groupbox id="browserContainersGroup" data-category="paneContainers" hidden="true">
-  <vbox id="browserContainersbox">
-
-    <richlistbox id="containersView" orient="vertical" persist="lastSelectedType"
-                 flex="1">
-      <listheader equalsize="always">
-          <treecol id="typeColumn" label="&label.label;" value="type"
-                   persist="sortDirection"
-                   flex="1" sortDirection="ascending"/>
-          <treecol id="actionColumn" value="action"
-                   persist="sortDirection"
-                   flex="1"/>
-      </listheader>
-    </richlistbox>
-  </vbox>
-  <vbox>
-    <hbox flex="1">
-      <button onclick="gContainersPane.onAddButtonClick();" accesskey="&addButton.accesskey;" label="&addButton.label;"/>
-    </hbox>
-  </vbox>
-</groupbox>
diff --git a/browser/components/preferences/in-content/content.js b/browser/components/preferences/in-content/content.js
deleted file mode 100644
index a957b1dd5..000000000
--- a/browser/components/preferences/in-content/content.js
+++ /dev/null
@@ -1,296 +0,0 @@
-/* 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/. */
-
-XPCOMUtils.defineLazyGetter(this, "AlertsServiceDND", function () {
-  try {
-    let alertsService = Cc["@mozilla.org/alerts-service;1"]
-                          .getService(Ci.nsIAlertsService)
-                          .QueryInterface(Ci.nsIAlertsDoNotDisturb);
-    // This will throw if manualDoNotDisturb isn't implemented.
-    alertsService.manualDoNotDisturb;
-    return alertsService;
-  } catch (ex) {
-    return undefined;
-  }
-});
-
-var gContentPane = {
-  init: function ()
-  {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gContentPane));
-    }
-
-    // Initializes the fonts dropdowns displayed in this pane.
-    this._rebuildFonts();
-    var menulist = document.getElementById("defaultFont");
-    if (menulist.selectedIndex == -1) {
-      menulist.value = FontBuilder.readFontSelection(menulist);
-    }
-
-    // Show translation preferences if we may:
-    const prefName = "browser.translation.ui.show";
-    if (Services.prefs.getBoolPref(prefName)) {
-      let row = document.getElementById("translationBox");
-      row.removeAttribute("hidden");
-      // Showing attribution only for Bing Translator.
-      Components.utils.import("resource:///modules/translation/Translation.jsm");
-      if (Translation.translationEngine == "bing") {
-        document.getElementById("bingAttribution").removeAttribute("hidden");
-      }
-    }
-
-    if (AlertsServiceDND) {
-      let notificationsDoNotDisturbRow =
-        document.getElementById("notificationsDoNotDisturbRow");
-      notificationsDoNotDisturbRow.removeAttribute("hidden");
-      if (AlertsServiceDND.manualDoNotDisturb) {
-        let notificationsDoNotDisturb =
-          document.getElementById("notificationsDoNotDisturb");
-        notificationsDoNotDisturb.setAttribute("checked", true);
-      }
-    }
-
-    setEventListener("font.language.group", "change",
-      gContentPane._rebuildFonts);
-    setEventListener("notificationsPolicyButton", "command",
-      gContentPane.showNotificationExceptions);
-    setEventListener("popupPolicyButton", "command",
-      gContentPane.showPopupExceptions);
-    setEventListener("advancedFonts", "command",
-      gContentPane.configureFonts);
-    setEventListener("colors", "command",
-      gContentPane.configureColors);
-    setEventListener("chooseLanguage", "command",
-      gContentPane.showLanguages);
-    setEventListener("translationAttributionImage", "click",
-      gContentPane.openTranslationProviderAttribution);
-    setEventListener("translateButton", "command",
-      gContentPane.showTranslationExceptions);
-    setEventListener("notificationsDoNotDisturb", "command",
-      gContentPane.toggleDoNotDisturbNotifications);
-
-    let notificationInfoURL =
-      Services.urlFormatter.formatURLPref("app.support.baseURL") + "push";
-    document.getElementById("notificationsPolicyLearnMore").setAttribute("href",
-                                                                         notificationInfoURL);
-
-#ifdef MOZ_EME
-    let drmInfoURL =
-      Services.urlFormatter.formatURLPref("app.support.baseURL") + "drm-content";
-    document.getElementById("playDRMContentLink").setAttribute("href", drmInfoURL);
-    let emeUIEnabled = Services.prefs.getBoolPref("browser.eme.ui.enabled");
-    // Force-disable/hide on WinXP:
-    if (navigator.platform.toLowerCase().startsWith("win")) {
-      emeUIEnabled = emeUIEnabled && parseFloat(Services.sysinfo.get("version")) >= 6;
-    }
-    if (!emeUIEnabled) {
-      // Don't want to rely on .hidden for the toplevel groupbox because
-      // of the pane hiding/showing code potentially interfering:
-      document.getElementById("drmGroup").setAttribute("style", "display: none !important");
-    }
-#endif
-  },
-
-  // 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;
-  },
-
-  // BEGIN UI CODE
-
-  /*
-   * Preferences:
-   *
-   * dom.disable_open_during_load
-   * - true if popups are blocked by default, false otherwise
-   */
-
-  // NOTIFICATIONS
-
-  /**
-   * Displays the notifications exceptions dialog where specific site notification
-   * preferences can be set.
-   */
-  showNotificationExceptions()
-  {
-    let bundlePreferences = document.getElementById("bundlePreferences");
-    let params = { permissionType: "desktop-notification" };
-    params.windowTitle = bundlePreferences.getString("notificationspermissionstitle");
-    params.introText = bundlePreferences.getString("notificationspermissionstext4");
-
-    gSubDialog.open("chrome://browser/content/preferences/permissions.xul",
-                    "resizable=yes", params);
-
-    try {
-      Services.telemetry
-              .getHistogramById("WEB_NOTIFICATION_EXCEPTIONS_OPENED").add();
-    } catch (e) {}
-  },
-
-
-  // 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");
-
-    gSubDialog.open("chrome://browser/content/preferences/permissions.xul",
-                    "resizable=yes", params);
-  },
-
-  // FONTS
-
-  /**
-   * Populates the default font list in UI.
-   */
-  _rebuildFonts: function ()
-  {
-    var preferences = document.getElementById("contentPreferences");
-    // Ensure preferences are "visible" to ensure bindings work.
-    preferences.hidden = false;
-    // Force flush:
-    preferences.clientHeight;
-    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 preferences = document.getElementById("contentPreferences");
-    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 }];
-    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 ()
-  {
-    gSubDialog.open("chrome://browser/content/preferences/fonts.xul", "resizable=no");
-  },
-
-  /**
-   * Displays the colors dialog, where default web page/link/etc. colors can be
-   * configured.
-   */
-  configureColors: function ()
-  {
-    gSubDialog.open("chrome://browser/content/preferences/colors.xul", "resizable=no");
-  },
-
-  // LANGUAGES
-
-  /**
-   * Shows a dialog in which the preferred language for web content may be set.
-   */
-  showLanguages: function ()
-  {
-    gSubDialog.open("chrome://browser/content/preferences/languages.xul");
-  },
-
-  /**
-   * Displays the translation exceptions dialog where specific site and language
-   * translation preferences can be set.
-   */
-  showTranslationExceptions: function ()
-  {
-    gSubDialog.open("chrome://browser/content/preferences/translation.xul");
-  },
-
-  openTranslationProviderAttribution: function ()
-  {
-    Components.utils.import("resource:///modules/translation/Translation.jsm");
-    Translation.openProviderAttribution();
-  },
-
-  toggleDoNotDisturbNotifications: function (event)
-  {
-    AlertsServiceDND.manualDoNotDisturb = event.target.checked;
-  },
-};
diff --git a/browser/components/preferences/in-content/content.xul b/browser/components/preferences/in-content/content.xul
deleted file mode 100644
index 9434cba62..000000000
--- a/browser/components/preferences/in-content/content.xul
+++ /dev/null
@@ -1,213 +0,0 @@
-# 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/.
-
-<!-- Content panel -->
-
-<preferences id="contentPreferences" hidden="true" data-category="paneContent">
-
-#ifdef MOZ_EME
-  <!-- DRM content -->
-  <preference id="media.eme.enabled"
-              name="media.eme.enabled"
-              type="bool"/>
-#endif
-
-  <!-- Popups -->
-  <preference id="dom.disable_open_during_load"
-              name="dom.disable_open_during_load"
-              type="bool"/>
-
-  <!-- Fonts -->
-  <preference id="font.language.group"
-              name="font.language.group"
-              type="wstring"/>
-
-  <!-- Languages -->
-  <preference id="browser.translation.detectLanguage"
-              name="browser.translation.detectLanguage"
-              type="bool"/>
-</preferences>
-
-<script type="application/javascript"
-        src="chrome://mozapps/content/preferences/fontbuilder.js"/>
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/content.js"/>
-
-<hbox id="header-content"
-      class="header"
-      hidden="true"
-      data-category="paneContent">
-  <label class="header-name" flex="1">&paneContent.title;</label>
-  <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-#ifdef MOZ_EME
-<groupbox id="drmGroup" data-category="paneContent" hidden="true">
-  <caption><label>&drmContent.label;</label></caption>
-  <grid id="contentGrid2">
-    <columns>
-      <column flex="1"/>
-      <column/>
-    </columns>
-    <rows id="contentRows-2">
-      <row id="playDRMContentRow">
-        <vbox align="start">
-          <checkbox id="playDRMContent" preference="media.eme.enabled"
-                    label="&playDRMContent.label;" accesskey="&playDRMContent.accesskey;"/>
-        </vbox>
-        <hbox pack="end" align="center">
-          <label id="playDRMContentLink" class="text-link" value="&playDRMContent.learnMore.label;"/>
-        </hbox>
-      </row>
-    </rows>
-  </grid>
-</groupbox>
-#endif
-
-<groupbox id="notificationsGroup" data-category="paneContent" hidden="true">
-  <caption><label>&notificationsPolicy.label;</label></caption>
-  <grid>
-    <columns>
-      <column flex="1"/>
-      <column/>
-    </columns>
-    <rows>
-      <row id="notificationsPolicyRow" align="center">
-        <hbox align="start">
-          <label id="notificationsPolicy">&notificationsPolicyDesc3.label;</label>
-          <label id="notificationsPolicyLearnMore"
-                 class="text-link"
-                 value="&notificationsPolicyLearnMore.label;"/>
-        </hbox>
-        <hbox pack="end">
-          <button id="notificationsPolicyButton" label="&notificationsPolicyButton.label;"
-                  accesskey="&notificationsPolicyButton.accesskey;"/>
-        </hbox>
-      </row>
-      <row id="notificationsDoNotDisturbRow" hidden="true">
-        <vbox align="start">
-          <checkbox id="notificationsDoNotDisturb" label="&notificationsDoNotDisturb.label;"
-                    accesskey="&notificationsDoNotDisturb.accesskey;"/>
-          <label id="notificationsDoNotDisturbDetails"
-                 class="indent"
-                 value="&notificationsDoNotDisturbDetails.value;"/>
-        </vbox>
-      </row>
-    </rows>
-  </grid>
-</groupbox>
-
-<groupbox id="miscGroup" data-category="paneContent" hidden="true">
-  <caption><label>&popups.label;</label></caption>
-  <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>
-        <hbox pack="end">
-          <button id="popupPolicyButton" label="&popupExceptions.label;"
-                  accesskey="&popupExceptions.accesskey;"/>
-        </hbox>
-      </row>
-    </rows>
-  </grid>
-</groupbox>
-
-<!-- Fonts and Colors -->
-<groupbox id="fontsGroup" data-category="paneContent" hidden="true">
-  <caption><label>&fontsAndColors.label;</label></caption>
-
-  <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" delayprefsave="true"/>
-          <label id="defaultFontSizeLabel" control="defaultFontSize" accesskey="&defaultSize.accesskey;">&defaultSize.label;</label>
-          <menulist id="defaultFontSize" delayprefsave="true">
-            <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;"/>
-      </row>
-      <row id="colorsRow">
-        <hbox/>
-        <button id="colors" icon="select-color"
-                label="&colors.label;"
-                accesskey="&colors.accesskey;"/>
-      </row>
-    </rows>
-  </grid>
-</groupbox>
-
-<!-- Languages -->
-<groupbox id="languagesGroup" data-category="paneContent" hidden="true">
-  <caption><label>&languages.label;</label></caption>
-
-  <hbox id="languagesBox" align="center">
-    <description flex="1" control="chooseLanguage">&chooseLanguage.label;</description>
-    <button id="chooseLanguage"
-            label="&chooseButton.label;"
-            accesskey="&chooseButton.accesskey;"/>
-  </hbox>
-
-  <hbox id="translationBox" hidden="true">
-    <hbox align="center" flex="1">
-      <checkbox id="translate" preference="browser.translation.detectLanguage"
-                label="&translateWebPages.label;." accesskey="&translateWebPages.accesskey;"
-                onsyncfrompreference="return gContentPane.updateButtons('translateButton',
-                                              'browser.translation.detectLanguage');"/>
-      <hbox id="bingAttribution" hidden="true">
-        <label>&translation.options.attribution.beforeLogo;</label>
-        <separator orient="vertical" class="thin"/>
-        <image id="translationAttributionImage" aria-label="Microsoft Translator"
-               src="chrome://browser/content/microsoft-translator-attribution.png"/>
-        <separator orient="vertical" class="thin"/>
-        <label>&translation.options.attribution.afterLogo;</label>
-      </hbox>
-    </hbox>
-    <button id="translateButton" label="&translateExceptions.label;"
-            accesskey="&translateExceptions.accesskey;"/>
-  </hbox>
-</groupbox>
diff --git a/browser/components/preferences/in-content/jar.mn b/browser/components/preferences/in-content/jar.mn
deleted file mode 100644
index 130bf8549..000000000
--- a/browser/components/preferences/in-content/jar.mn
+++ /dev/null
@@ -1,18 +0,0 @@
-# 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/.
-
-browser.jar:
-   content/browser/preferences/in-content/preferences.js
-*  content/browser/preferences/in-content/preferences.xul
-   content/browser/preferences/in-content/subdialogs.js
-
-   content/browser/preferences/in-content/main.js
-   content/browser/preferences/in-content/privacy.js
-   content/browser/preferences/in-content/containers.js
-   content/browser/preferences/in-content/advanced.js
-   content/browser/preferences/in-content/applications.js
-*  content/browser/preferences/in-content/content.js
-   content/browser/preferences/in-content/sync.js
-*  content/browser/preferences/in-content/security.js
-   content/browser/preferences/in-content/search.js
diff --git a/browser/components/preferences/in-content/main.js b/browser/components/preferences/in-content/main.js
deleted file mode 100644
index bac771bec..000000000
--- a/browser/components/preferences/in-content/main.js
+++ /dev/null
@@ -1,667 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://gre/modules/Downloads.jsm");
-Components.utils.import("resource://gre/modules/FileUtils.jsm");
-Components.utils.import("resource://gre/modules/Task.jsm");
-Components.utils.import("resource:///modules/ShellService.jsm");
-Components.utils.import("resource:///modules/TransientPrefs.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "OS",
-                                  "resource://gre/modules/osfile.jsm");
-
-var gMainPane = {
-  /**
-   * Initialization of this.
-   */
-  init: function ()
-  {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gMainPane));
-    }
-
-    if (AppConstants.HAVE_SHELL_SERVICE) {
-      this.updateSetDefaultBrowser();
-      if (AppConstants.platform == "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.bind(this), 1000);
-      }
-    }
-
-    // set up the "use current page" label-changing listener
-    this._updateUseCurrentButton();
-    window.addEventListener("focus", this._updateUseCurrentButton.bind(this), false);
-
-    this.updateBrowserStartupLastSession();
-
-    if (AppConstants.platform == "win") {
-      // Functionality for "Show tabs in taskbar" on Windows 7 and up.
-      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) {}
-    }
-
-    // The "closing multiple tabs" and "opening multiple tabs might slow down
-    // &brandShortName;" warnings provide options for not showing these
-    // warnings again. When the user disabled them, we provide checkboxes to
-    // re-enable the warnings.
-    if (!TransientPrefs.prefShouldBeVisible("browser.tabs.warnOnClose"))
-      document.getElementById("warnCloseMultiple").hidden = true;
-    if (!TransientPrefs.prefShouldBeVisible("browser.tabs.warnOnOpen"))
-      document.getElementById("warnOpenMany").hidden = true;
-
-    setEventListener("browser.privatebrowsing.autostart", "change",
-                     gMainPane.updateBrowserStartupLastSession);
-    setEventListener("browser.download.dir", "change",
-                     gMainPane.displayDownloadDirPref);
-    if (AppConstants.HAVE_SHELL_SERVICE) {
-      setEventListener("setDefaultButton", "command",
-                       gMainPane.setDefaultBrowser);
-    }
-    setEventListener("useCurrent", "command",
-                     gMainPane.setHomePageToCurrent);
-    setEventListener("useBookmark", "command",
-                     gMainPane.setHomePageToBookmark);
-    setEventListener("restoreDefaultHomePage", "command",
-                     gMainPane.restoreDefaultHomePage);
-    setEventListener("chooseFolder", "command",
-                     gMainPane.chooseFolder);
-
-    if (AppConstants.MOZ_DEV_EDITION) {
-      let uAppData = OS.Constants.Path.userApplicationDataDir;
-      let ignoreSeparateProfile = OS.Path.join(uAppData, "ignore-dev-edition-profile");
-
-      setEventListener("separateProfileMode", "command", gMainPane.separateProfileModeChange);
-      let separateProfileModeCheckbox = document.getElementById("separateProfileMode");
-      setEventListener("getStarted", "click", gMainPane.onGetStarted);
-
-      OS.File.stat(ignoreSeparateProfile).then(() => separateProfileModeCheckbox.checked = false,
-                                               () => separateProfileModeCheckbox.checked = true);
-    }
-
-    // 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);
-  },
-
-  enableE10SChange: function ()
-  {
-    // **STUB**
-  },
-
-  separateProfileModeChange: function ()
-  {
-    if (AppConstants.MOZ_DEV_EDITION) {
-      function quitApp() {
-        Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit |  Ci.nsIAppStartup.eRestartNotSameProfile);
-      }
-      function revertCheckbox(error) {
-        separateProfileModeCheckbox.checked = !separateProfileModeCheckbox.checked;
-        if (error) {
-          Cu.reportError("Failed to toggle separate profile mode: " + error);
-        }
-      }
-      function createOrRemoveSpecialDevEditionFile(onSuccess) {
-        let uAppData = OS.Constants.Path.userApplicationDataDir;
-        let ignoreSeparateProfile = OS.Path.join(uAppData, "ignore-dev-edition-profile");
-
-        if (separateProfileModeCheckbox.checked) {
-          OS.File.remove(ignoreSeparateProfile).then(onSuccess, revertCheckbox);
-        } else {
-          OS.File.writeAtomic(ignoreSeparateProfile, new Uint8Array()).then(onSuccess, revertCheckbox);
-        }
-      }
-
-      let separateProfileModeCheckbox = document.getElementById("separateProfileMode");
-      let button_index = confirmRestartPrompt(separateProfileModeCheckbox.checked,
-                                              0, false, true);
-      switch (button_index) {
-        case CONFIRM_RESTART_PROMPT_CANCEL:
-          revertCheckbox();
-          return;
-        case CONFIRM_RESTART_PROMPT_RESTART_NOW:
-          const Cc = Components.classes, Ci = Components.interfaces;
-          let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"]
-                             .createInstance(Ci.nsISupportsPRBool);
-          Services.obs.notifyObservers(cancelQuit, "quit-application-requested",
-                                        "restart");
-          if (!cancelQuit.data) {
-            createOrRemoveSpecialDevEditionFile(quitApp);
-            return;
-          }
-
-          // Revert the checkbox in case we didn't quit
-          revertCheckbox();
-          return;
-        case CONFIRM_RESTART_PROMPT_RESTART_LATER:
-          createOrRemoveSpecialDevEditionFile();
-          return;
-      }
-    }
-  },
-
-  onGetStarted: function (aEvent) {
-    if (AppConstants.MOZ_DEV_EDITION) {
-      const Cc = Components.classes, Ci = Components.interfaces;
-      let wm = Cc["@mozilla.org/appshell/window-mediator;1"]
-                  .getService(Ci.nsIWindowMediator);
-      let win = wm.getMostRecentWindow("navigator:browser");
-
-      if (win) {
-        let accountsTab = win.gBrowser.addTab("about:accounts?action=signin&entrypoint=dev-edition-setup");
-        win.gBrowser.selectedTab = accountsTab;
-      }
-    }
-  },
-
-  // 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 or about:newtab, set the value to ""
-    // to show the placeholder text (about:home title) rather than
-    // exposing those URLs to users.
-    let defaultBranch = Services.prefs.getDefaultBranch("");
-    let defaultValue = defaultBranch.getComplexValue("browser.startup.homepage",
-                                                     Ci.nsIPrefLocalizedString).data;
-    let currentValue = homePref.value.toLowerCase();
-    if (currentValue == "about:home" ||
-        (currentValue == defaultValue && currentValue == "about:newtab")) {
-      return "";
-    }
-
-    // If the pref is actually "", show about:blank.  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:blank";
-
-    // 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) {
-      return 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 };
-    gSubDialog.open("chrome://browser/content/preferences/selectBookmark.xul",
-                    "resizable=yes, modal=yes", rv,
-                    this._setHomePageToBookmarkClosed.bind(this, rv));
-  },
-
-  _setHomePageToBookmarkClosed: function(rv, aEvent) {
-    if (aEvent.detail.button != "accept")
-      return;
-    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.
-    let prefName = "pref.browser.homepage.disable_button.current_page";
-    if (document.getElementById(prefName).locked)
-      return;
-
-    useCurrent.disabled = !tabs.length
-  },
-
-  _getTabsForHomePage: function ()
-  {
-    var win;
-    var tabs = [];
-
-    const Cc = Components.classes, Ci = Components.interfaces;
-    var wm = Cc["@mozilla.org/appshell/window-mediator;1"]
-                .getService(Ci.nsIWindowMediator);
-    win = wm.getMostRecentWindow("navigator:browser");
-
-    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);
-      tabs = tabs.filter(this.isNotAboutPreferences);
-    }
-
-    return tabs;
-  },
-
-  /**
-   * Check to see if a tab is not about:preferences
-   */
-  isNotAboutPreferences: function (aElement, aIndex, aArray)
-  {
-    return !aElement.linkedBrowser.currentURI.spec.startsWith("about:preferences");
-  },
-
-  /**
-   * 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.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.
-   */
-
-  /**
-   * 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 || preference.locked;
-    chooseFolder.disabled = !preference.value || preference.locked;
-
-    // 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()
-  {
-    return this.chooseFolderTask().catch(Components.utils.reportError);
-  },
-  chooseFolderTask: Task.async(function* ()
-  {
-    let bundlePreferences = document.getElementById("bundlePreferences");
-    let title = bundlePreferences.getString("chooseDownloadFolderTitle");
-    let folderListPref = document.getElementById("browser.download.folderList");
-    let currentDirPref = yield this._indexToFolder(folderListPref.value);
-    let defDownloads = yield this._indexToFolder(1);
-    let fp = Components.classes["@mozilla.org/filepicker;1"].
-             createInstance(Components.interfaces.nsIFilePicker);
-
-    fp.init(window, title, Components.interfaces.nsIFilePicker.modeGetFolder);
-    fp.appendFilters(Components.interfaces.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 = yield this._indexToFolder(0);
-    }
-
-    let result = yield new Promise(resolve => fp.open(resolve));
-    if (result != Components.interfaces.nsIFilePicker.returnOK) {
-      return;
-    }
-
-    let downloadDirPref = document.getElementById("browser.download.dir");
-    downloadDirPref.value = fp.file;
-    folderListPref.value = yield this._folderToIndex(fp.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.
-  }),
-
-  /**
-   * Initializes the download folder display settings based on the user's
-   * preferences.
-   */
-  displayDownloadDirPref()
-  {
-    this.displayDownloadDirPrefTask().catch(Components.utils.reportError);
-
-    // don't override the preference's value in UI
-    return undefined;
-  },
-
-  displayDownloadDirPrefTask: Task.async(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(yield this._indexToFolder(1));
-    } else {
-      // 'Desktop'
-      downloadFolder.label = bundlePreferences.getString("desktopFolderName");
-      iconUrlSpec = fph.getURLSpecFromFile(yield this._getDownloadsFolder("Desktop"));
-    }
-    downloadFolder.image = "moz-icon://" + iconUrlSpec + "?size=16";
-  }),
-
-  /**
-   * 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: Task.async(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);
-      case "Downloads":
-        let downloadsDir = yield Downloads.getSystemDownloadsDirectory();
-        return new FileUtils.File(downloadsDir);
-    }
-    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: Task.async(function* (aFolder)
-  {
-    if (!aFolder || aFolder.equals(yield this._getDownloadsFolder("Desktop")))
-      return 0;
-    else if (aFolder.equals(yield 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: Task.async(function* (aIndex)
-  {
-    switch (aIndex) {
-      case 0:
-        return yield this._getDownloadsFolder("Desktop");
-      case 1:
-        return yield this._getDownloadsFolder("Downloads");
-    }
-    var currentDirPref = document.getElementById("browser.download.dir");
-    return currentDirPref.value;
-  }),
-
-  /**
-   * 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
-    }
-  },
-
-  // TABS
-
-  /*
-   * Preferences:
-   *
-   * browser.link.open_newwindow - int
-   *   Determines where links targeting new windows should open.
-   *   Values:
-   *     1 - Open in the current window or tab.
-   *     2 - Open in a new window.
-   *     3 - Open in a new tab in the most recent window.
-   * browser.tabs.loadInBackground - bool
-   *   True - Whether browser should switch to a new tab opened from a link.
-   * browser.tabs.warnOnClose - bool
-   *   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 - bool
-   *   True - Whether the user should be warned when trying to open a lot of
-   *          tabs at once (e.g. a large folder of bookmarks), allowing to
-   *          cancel the action.
-   * browser.taskbar.previews.enable - bool
-   *   True - Tabs are to be shown in Windows 7 taskbar.
-   *   False - Only the window is to be shown in Windows 7 taskbar.
-   */
-
-  /**
-   * 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;
-  },
-  /*
-   * 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()
-  {
-    if (AppConstants.HAVE_SHELL_SERVICE) {
-      let shellSvc = getShellService();
-      let defaultBrowserBox = document.getElementById("defaultBrowserBox");
-      if (!shellSvc) {
-        defaultBrowserBox.hidden = true;
-        return;
-      }
-      let setDefaultPane = document.getElementById("setDefaultPane");
-      let isDefault = shellSvc.isDefaultBrowser(false, true);
-      setDefaultPane.selectedIndex = isDefault ? 1 : 0;
-      let alwaysCheck = document.getElementById("alwaysCheckDefault");
-      alwaysCheck.disabled = alwaysCheck.disabled ||
-                             isDefault && alwaysCheck.checked;
-    }
-  },
-
-  /**
-   * Set browser as the operating system default browser.
-   */
-  setDefaultBrowser: function()
-  {
-    if (AppConstants.HAVE_SHELL_SERVICE) {
-      let alwaysCheckPref = document.getElementById("browser.shell.checkDefaultBrowser");
-      alwaysCheckPref.value = true;
-
-      let shellSvc = getShellService();
-      if (!shellSvc)
-        return;
-      try {
-        shellSvc.setDefaultBrowser(true, false);
-      } catch (ex) {
-        Cu.reportError(ex);
-        return;
-      }
-
-      let selectedIndex = shellSvc.isDefaultBrowser(false, true) ? 1 : 0;
-      document.getElementById("setDefaultPane").selectedIndex = selectedIndex;
-    }
-  },
-};
diff --git a/browser/components/preferences/in-content/main.xul b/browser/components/preferences/in-content/main.xul
deleted file mode 100644
index 8eca11877..000000000
--- a/browser/components/preferences/in-content/main.xul
+++ /dev/null
@@ -1,284 +0,0 @@
-# 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/.
-
-<!-- General panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/main.js"/>
-
-<preferences id="mainPreferences" hidden="true" data-category="paneGeneral">
-
-    <!-- Startup -->
-    <preference id="browser.startup.page"
-                name="browser.startup.page"
-                type="int"/>
-    <preference id="browser.startup.homepage"
-                name="browser.startup.homepage"
-                type="wstring"/>
-
-#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.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"/>
-
-    <!-- Downloads -->
-    <preference id="browser.download.useDownloadDir"
-                name="browser.download.useDownloadDir"
-                type="bool"/>
-
-    <preference id="browser.download.folderList"
-                name="browser.download.folderList"
-                type="int"/>
-    <preference id="browser.download.dir"
-                name="browser.download.dir"
-                type="file"/>
-    <!-- Tab preferences
-    Preferences:
-
-    browser.link.open_newwindow
-        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
-    -->
-
-    <preference id="browser.link.open_newwindow"
-                name="browser.link.open_newwindow"
-                type="int"/>
-    <preference id="browser.tabs.loadInBackground"
-                name="browser.tabs.loadInBackground"
-                type="bool"
-                inverted="true"/>
-    <preference id="browser.tabs.warnOnClose"
-                name="browser.tabs.warnOnClose"
-                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.ctrlTab.previews"
-                name="browser.ctrlTab.previews"
-                type="bool"/>
-</preferences>
-
-<hbox id="header-general"
-      class="header"
-      hidden="true"
-      data-category="paneGeneral">
-  <label class="header-name" flex="1">&paneGeneral.title;</label>
-  <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-<!-- Startup -->
-<groupbox id="startupGroup"
-          data-category="paneGeneral"
-          hidden="true">
-  <caption><label>&startup.label;</label></caption>
-
-#ifdef MOZ_DEV_EDITION
-  <vbox id="separateProfileBox">
-    <checkbox id="separateProfileMode"
-              label="&separateProfileMode.label;"/>
-    <hbox align="center" class="indent">
-      <label id="useFirefoxSync">&useFirefoxSync.label;</label>
-      <label id="getStarted" class="text-link">&getStarted.label;</label>
-    </hbox>
-  </vbox>
-#endif
-
-#ifdef HAVE_SHELL_SERVICE
-  <vbox id="defaultBrowserBox">
-    <hbox align="center">
-      <checkbox id="alwaysCheckDefault" preference="browser.shell.checkDefaultBrowser"
-                label="&alwaysCheckDefault2.label;" accesskey="&alwaysCheckDefault2.accesskey;"/>
-    </hbox>
-    <deck id="setDefaultPane">
-      <hbox align="center" class="indent">
-        <label id="isNotDefaultLabel" flex="1">&isNotDefault.label;</label>
-        <button id="setDefaultButton"
-                label="&setAsMyDefaultBrowser2.label;" accesskey="&setAsMyDefaultBrowser2.accesskey;"
-                preference="pref.general.disable_button.default_browser"/>
-      </hbox>
-      <hbox align="center" class="indent">
-        <label id="isDefaultLabel" flex="1">&isDefault.label;</label>
-      </hbox>
-    </deck>
-    <separator class="thin"/>
-  </vbox>
-#endif
-
-  <html:table id="startupTable">
-    <html:tr>
-      <html:td class="label-cell">
-        <label accesskey="&startupPage.accesskey;"
-               control="browserStartupPage">&startupPage.label;</label>
-      </html:td>
-      <html:td class="content-cell">
-        <menulist id="browserStartupPage"
-                  class="content-cell-item"
-                  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>
-      </html:td>
-    </html:tr>
-    <html:tr>
-      <html:td class="label-cell">
-        <label accesskey="&homepage.accesskey;"
-               control="browserHomePage">&homepage.label;</label>
-      </html:td>
-      <html:td class="content-cell">
-        <textbox id="browserHomePage"
-                 class="padded uri-element content-cell-item"
-                 type="autocomplete"
-                 autocompletesearch="unifiedcomplete"
-                 onsyncfrompreference="return gMainPane.syncFromHomePref();"
-                 onsynctopreference="return gMainPane.syncToHomePref(this.value);"
-                 placeholder="&abouthome.pageTitle;"
-                 preference="browser.startup.homepage"/>
-      </html:td>
-    </html:tr>
-    <html:tr>
-      <html:td class="label-cell" />
-      <html:td class="content-cell homepage-buttons">
-        <button id="useCurrent"
-                class="content-cell-item"
-                label=""
-                accesskey="&useCurrentPage.accesskey;"
-                label1="&useCurrentPage.label;"
-                label2="&useMultiple.label;"
-                preference="pref.browser.homepage.disable_button.current_page"/>
-        <button id="useBookmark"
-                class="content-cell-item"
-                label="&chooseBookmark.label;"
-                accesskey="&chooseBookmark.accesskey;"
-                preference="pref.browser.homepage.disable_button.bookmark_page"/>
-        <button id="restoreDefaultHomePage"
-                class="content-cell-item"
-                label="&restoreDefault.label;"
-                accesskey="&restoreDefault.accesskey;"
-                preference="pref.browser.homepage.disable_button.restore_default"/>
-      </html:td>
-    </html:tr>
-  </html:table>
-</groupbox>
-
-<!-- Downloads -->
-<groupbox id="downloadsGroup"
-          data-category="paneGeneral"
-          hidden="true">
-  <caption><label>&downloads.label;</label></caption>
-
-  <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();"/>
-      <button id="chooseFolder"
-#ifdef XP_MACOSX
-              accesskey="&chooseFolderMac.accesskey;"
-              label="&chooseFolderMac.label;"
-#else
-              accesskey="&chooseFolderWin.accesskey;"
-              label="&chooseFolderWin.label;"
-#endif
-      />
-    </hbox>
-    <hbox>
-      <radio id="alwaysAsk"
-             value="false"
-             label="&alwaysAsk.label;"
-             accesskey="&alwaysAsk.accesskey;"/>
-    </hbox>
-  </radiogroup>
-</groupbox>
-
-<!-- Tab preferences -->
-<groupbox data-category="paneGeneral"
-          hidden="true" align="start">
-    <caption><label>&tabsGroup.label;</label></caption>
-
-    <checkbox id="ctrlTabRecentlyUsedOrder" label="&ctrlTabRecentlyUsedOrder.label;"
-              accesskey="&ctrlTabRecentlyUsedOrder.accesskey;"
-              preference="browser.ctrlTab.previews"/>
-
-    <checkbox id="linkTargeting" label="&newWindowsAsTabs.label;"
-              accesskey="&newWindowsAsTabs.accesskey;"
-              preference="browser.link.open_newwindow"
-              onsyncfrompreference="return gMainPane.readLinkTarget();"
-              onsynctopreference="return gMainPane.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="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
-</groupbox>
diff --git a/browser/components/preferences/in-content/moz.build b/browser/components/preferences/in-content/moz.build
deleted file mode 100644
index 08a75bcf7..000000000
--- a/browser/components/preferences/in-content/moz.build
+++ /dev/null
@@ -1,13 +0,0 @@
-# -*- Mode: python; 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']
diff --git a/browser/components/preferences/in-content/preferences.js b/browser/components/preferences/in-content/preferences.js
deleted file mode 100644
index e18ab4b04..000000000
--- a/browser/components/preferences/in-content/preferences.js
+++ /dev/null
@@ -1,315 +0,0 @@
-/* - 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/. */
-
-// Import globals from the files imported by the .xul files.
-/* import-globals-from subdialogs.js */
-/* import-globals-from advanced.js */
-/* import-globals-from main.js */
-/* import-globals-from search.js */
-/* import-globals-from content.js */
-/* import-globals-from privacy.js */
-/* import-globals-from applications.js */
-/* import-globals-from security.js */
-/* import-globals-from sync.js */
-/* import-globals-from ../../../base/content/utilityOverlay.js */
-
-"use strict";
-
-var Cc = Components.classes;
-var Ci = Components.interfaces;
-var Cu = Components.utils;
-var Cr = Components.results;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
-
-var gLastHash = "";
-
-var gCategoryInits = new Map();
-function init_category_if_required(category) {
-  let categoryInfo = gCategoryInits.get(category);
-  if (!categoryInfo) {
-    throw "Unknown in-content prefs category! Can't init " + category;
-  }
-  if (categoryInfo.inited) {
-    return;
-  }
-  categoryInfo.init();
-}
-
-function register_module(categoryName, categoryObject) {
-  gCategoryInits.set(categoryName, {
-    inited: false,
-    init: function() {
-      categoryObject.init();
-      this.inited = true;
-    }
-  });
-}
-
-addEventListener("DOMContentLoaded", function onLoad() {
-  removeEventListener("DOMContentLoaded", onLoad);
-  init_all();
-});
-
-function init_all() {
-  document.documentElement.instantApply = true;
-
-  gSubDialog.init();
-  register_module("paneGeneral", gMainPane);
-  register_module("paneSearch", gSearchPane);
-  register_module("panePrivacy", gPrivacyPane);
-  register_module("paneContainers", gContainersPane);
-  register_module("paneAdvanced", gAdvancedPane);
-  register_module("paneApplications", gApplicationsPane);
-  register_module("paneContent", gContentPane);
-  register_module("paneSync", gSyncPane);
-  register_module("paneSecurity", gSecurityPane);
-
-  let categories = document.getElementById("categories");
-  categories.addEventListener("select", event => gotoPref(event.target.value));
-
-  document.documentElement.addEventListener("keydown", function(event) {
-    if (event.keyCode == KeyEvent.DOM_VK_TAB) {
-      categories.setAttribute("keyboard-navigation", "true");
-    }
-  });
-  categories.addEventListener("mousedown", function() {
-    this.removeAttribute("keyboard-navigation");
-  });
-
-  window.addEventListener("hashchange", onHashChange);
-  gotoPref();
-
-  init_dynamic_padding();
-
-  var initFinished = new CustomEvent("Initialized", {
-    'bubbles': true,
-    'cancelable': true
-  });
-  document.dispatchEvent(initFinished);
-
-  categories = categories.querySelectorAll("richlistitem.category");
-  for (let category of categories) {
-    let name = internalPrefCategoryNameToFriendlyName(category.value);
-    let helpSelector = `#header-${name} > .help-button`;
-    let helpButton = document.querySelector(helpSelector);
-    helpButton.setAttribute("href", getHelpLinkURL(category.getAttribute("helpTopic")));
-  }
-
-  // Wait until initialization of all preferences are complete before
-  // notifying observers that the UI is now ready.
-  Services.obs.notifyObservers(window, "advanced-pane-loaded", null);
-}
-
-// Make the space above the categories list shrink on low window heights
-function init_dynamic_padding() {
-  let categories = document.getElementById("categories");
-  let catPadding = Number.parseInt(getComputedStyle(categories)
-                                     .getPropertyValue('padding-top'));
-  let fullHeight = categories.lastElementChild.getBoundingClientRect().bottom;
-  let mediaRule = `
-  @media (max-height: ${fullHeight}px) {
-    #categories {
-      padding-top: calc(100vh - ${fullHeight - catPadding}px);
-    }
-  }
-  `;
-  let mediaStyle = document.createElementNS('http://www.w3.org/1999/xhtml', 'html:style');
-  mediaStyle.setAttribute('type', 'text/css');
-  mediaStyle.appendChild(document.createCDATASection(mediaRule));
-  document.documentElement.appendChild(mediaStyle);
-}
-
-function telemetryBucketForCategory(category) {
-  switch (category) {
-    case "general":
-    case "search":
-    case "content":
-    case "applications":
-    case "privacy":
-    case "security":
-    case "sync":
-      return category;
-    case "advanced":
-      let advancedPaneTabs = document.getElementById("advancedPrefs");
-      switch (advancedPaneTabs.selectedTab.id) {
-        case "generalTab":
-          return "advancedGeneral";
-        case "dataChoicesTab":
-          return "advancedDataChoices";
-        case "networkTab":
-          return "advancedNetwork";
-        case "updateTab":
-          return "advancedUpdates";
-        case "encryptionTab":
-          return "advancedCerts";
-      }
-      // fall-through for unknown.
-    default:
-      return "unknown";
-  }
-}
-
-function onHashChange() {
-  gotoPref();
-}
-
-function gotoPref(aCategory) {
-  let categories = document.getElementById("categories");
-  const kDefaultCategoryInternalName = categories.firstElementChild.value;
-  let hash = document.location.hash;
-  let category = aCategory || hash.substr(1) || kDefaultCategoryInternalName;
-  category = friendlyPrefCategoryNameToInternalName(category);
-
-  // Updating the hash (below) or changing the selected category
-  // will re-enter gotoPref.
-  if (gLastHash == category)
-    return;
-  let item = categories.querySelector(".category[value=" + category + "]");
-  if (!item) {
-    category = kDefaultCategoryInternalName;
-    item = categories.querySelector(".category[value=" + category + "]");
-  }
-
-  try {
-    init_category_if_required(category);
-  } catch (ex) {
-    Cu.reportError("Error initializing preference category " + category + ": " + ex);
-    throw ex;
-  }
-
-  let friendlyName = internalPrefCategoryNameToFriendlyName(category);
-  if (gLastHash || category != kDefaultCategoryInternalName) {
-    document.location.hash = friendlyName;
-  }
-  // Need to set the gLastHash before setting categories.selectedItem since
-  // the categories 'select' event will re-enter the gotoPref codepath.
-  gLastHash = category;
-  categories.selectedItem = item;
-  window.history.replaceState(category, document.title);
-  search(category, "data-category");
-  let mainContent = document.querySelector(".main-content");
-  mainContent.scrollTop = 0;
-
-  Services.telemetry
-          .getHistogramById("FX_PREFERENCES_CATEGORY_OPENED")
-          .add(telemetryBucketForCategory(friendlyName));
-}
-
-function search(aQuery, aAttribute) {
-  let mainPrefPane = document.getElementById("mainPrefPane");
-  let elements = mainPrefPane.children;
-  for (let element of elements) {
-    let attributeValue = element.getAttribute(aAttribute);
-    element.hidden = (attributeValue != aQuery);
-  }
-
-  let keysets = mainPrefPane.getElementsByTagName("keyset");
-  for (let element of keysets) {
-    let attributeValue = element.getAttribute(aAttribute);
-    if (attributeValue == aQuery)
-      element.removeAttribute("disabled");
-    else
-      element.setAttribute("disabled", true);
-  }
-}
-
-function helpButtonCommand() {
-  let pane = history.state;
-  let categories = document.getElementById("categories");
-  let helpTopic = categories.querySelector(".category[value=" + pane + "]")
-                            .getAttribute("helpTopic");
-  openHelpLink(helpTopic);
-}
-
-function friendlyPrefCategoryNameToInternalName(aName) {
-  if (aName.startsWith("pane"))
-    return aName;
-  return "pane" + aName.substring(0, 1).toUpperCase() + aName.substr(1);
-}
-
-// This function is duplicated inside of utilityOverlay.js's openPreferences.
-function internalPrefCategoryNameToFriendlyName(aName) {
-  return (aName || "").replace(/^pane./, function(toReplace) { return toReplace[4].toLowerCase(); });
-}
-
-// Put up a confirm dialog with "ok to restart", "revert without restarting"
-// and "restart later" buttons and returns the index of the button chosen.
-// We can choose not to display the "restart later", or "revert" buttons,
-// altough the later still lets us revert by using the escape key.
-//
-// The constants are useful to interpret the return value of the function.
-const CONFIRM_RESTART_PROMPT_RESTART_NOW = 0;
-const CONFIRM_RESTART_PROMPT_CANCEL = 1;
-const CONFIRM_RESTART_PROMPT_RESTART_LATER = 2;
-function confirmRestartPrompt(aRestartToEnable, aDefaultButtonIndex,
-                              aWantRevertAsCancelButton,
-			      aWantRestartLaterButton) {
-  let brandName = document.getElementById("bundleBrand").getString("brandShortName");
-  let bundle = document.getElementById("bundlePreferences");
-  let msg = bundle.getFormattedString(aRestartToEnable ?
-                                      "featureEnableRequiresRestart" :
-                                      "featureDisableRequiresRestart",
-                                      [brandName]);
-  let title = bundle.getFormattedString("shouldRestartTitle", [brandName]);
-  let prompts = Cc["@mozilla.org/embedcomp/prompt-service;1"].getService(Ci.nsIPromptService);
-
-  // Set up the first (index 0) button:
-  let button0Text = bundle.getFormattedString("okToRestartButton", [brandName]);
-  let buttonFlags = (Services.prompt.BUTTON_POS_0 *
-                     Services.prompt.BUTTON_TITLE_IS_STRING);
-
-
-  // Set up the second (index 1) button:
-  let button1Text = null;
-  if (aWantRevertAsCancelButton) {
-    button1Text = bundle.getString("revertNoRestartButton");
-    buttonFlags += (Services.prompt.BUTTON_POS_1 *
-                    Services.prompt.BUTTON_TITLE_IS_STRING);
-  } else {
-    buttonFlags += (Services.prompt.BUTTON_POS_1 *
-                    Services.prompt.BUTTON_TITLE_CANCEL);
-  }
-
-  // Set up the third (index 2) button:
-  let button2Text = null;
-  if (aWantRestartLaterButton) {
-    button2Text = bundle.getString("restartLater");
-    buttonFlags += (Services.prompt.BUTTON_POS_2 *
-                    Services.prompt.BUTTON_TITLE_IS_STRING);
-  }
-
-  switch (aDefaultButtonIndex) {
-    case 0:
-      buttonFlags += Services.prompt.BUTTON_POS_0_DEFAULT;
-      break;
-    case 1:
-      buttonFlags += Services.prompt.BUTTON_POS_1_DEFAULT;
-      break;
-    case 2:
-      buttonFlags += Services.prompt.BUTTON_POS_2_DEFAULT;
-      break;
-    default:
-      break;
-  }
-
-  let buttonIndex = prompts.confirmEx(window, title, msg, buttonFlags,
-                                      button0Text, button1Text, button2Text,
-                                      null, {});
-
-  // If we have the second confirmation dialog for restart, see if the user
-  // cancels out at that point.
-  if (buttonIndex == CONFIRM_RESTART_PROMPT_RESTART_NOW) {
-    let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"]
-                       .createInstance(Ci.nsISupportsPRBool);
-    Services.obs.notifyObservers(cancelQuit, "quit-application-requested",
-                                  "restart");
-    if (cancelQuit.data) {
-      buttonIndex = CONFIRM_RESTART_PROMPT_CANCEL;
-    }
-  }
-  return buttonIndex;
-}
diff --git a/browser/components/preferences/in-content/preferences.xul b/browser/components/preferences/in-content/preferences.xul
deleted file mode 100644
index 7ec7ef119..000000000
--- a/browser/components/preferences/in-content/preferences.xul
+++ /dev/null
@@ -1,216 +0,0 @@
-<?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/global.css"?>
-
-<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css"?>
-<?xml-stylesheet href="chrome://global/skin/in-content/common.css"?>
-<?xml-stylesheet
-  href="chrome://browser/skin/preferences/in-content/preferences.css"?>
-<?xml-stylesheet
-  href="chrome://browser/content/preferences/handlers.css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/applications.css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/in-content/search.css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/in-content/containers.css"?>
-
-<!DOCTYPE page [
-<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
-<!ENTITY % globalPreferencesDTD SYSTEM "chrome://global/locale/preferences.dtd">
-<!ENTITY % preferencesDTD SYSTEM
-  "chrome://browser/locale/preferences/preferences.dtd">
-<!ENTITY % privacyDTD SYSTEM "chrome://browser/locale/preferences/privacy.dtd">
-<!ENTITY % tabsDTD SYSTEM "chrome://browser/locale/preferences/tabs.dtd">
-<!ENTITY % searchDTD SYSTEM "chrome://browser/locale/preferences/search.dtd">
-<!ENTITY % syncBrandDTD SYSTEM "chrome://browser/locale/syncBrand.dtd">
-<!ENTITY % syncDTD SYSTEM "chrome://browser/locale/preferences/sync.dtd">
-<!ENTITY % securityDTD SYSTEM
-  "chrome://browser/locale/preferences/security.dtd">
-<!ENTITY % containersDTD SYSTEM
-  "chrome://browser/locale/preferences/containers.dtd">
-<!ENTITY % sanitizeDTD SYSTEM "chrome://browser/locale/sanitize.dtd">
-<!ENTITY % mainDTD SYSTEM "chrome://browser/locale/preferences/main.dtd">
-<!ENTITY % aboutHomeDTD SYSTEM "chrome://browser/locale/aboutHome.dtd">
-<!ENTITY % contentDTD SYSTEM "chrome://browser/locale/preferences/content.dtd">
-<!ENTITY % applicationsDTD SYSTEM
-  "chrome://browser/locale/preferences/applications.dtd">
-<!ENTITY % advancedDTD SYSTEM
-  "chrome://browser/locale/preferences/advanced.dtd">
-%brandDTD;
-%globalPreferencesDTD;
-%preferencesDTD;
-%privacyDTD;
-%tabsDTD;
-%searchDTD;
-%syncBrandDTD;
-%syncDTD;
-%securityDTD;
-%containersDTD;
-%sanitizeDTD;
-%mainDTD;
-%aboutHomeDTD;
-%contentDTD;
-%applicationsDTD;
-%advancedDTD;
-]>
-
-<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-      xmlns:html="http://www.w3.org/1999/xhtml"
-      disablefastfind="true"
-      title="&prefWindow.title;">
-
-  <html:link rel="shortcut icon"
-              href="chrome://browser/skin/preferences/in-content/favicon.ico"/>
-
-  <script type="application/javascript"
-          src="chrome://browser/content/utilityOverlay.js"/>
-  <script type="application/javascript"
-          src="chrome://browser/content/preferences/in-content/preferences.js"/>
-  <script src="chrome://browser/content/preferences/in-content/subdialogs.js"/>
-
-  <stringbundle id="bundleBrand"
-                src="chrome://branding/locale/brand.properties"/>
-  <stringbundle id="bundlePreferences"
-                src="chrome://browser/locale/preferences/preferences.properties"/>
-
-  <stringbundleset id="appManagerBundleset">
-    <stringbundle id="appManagerBundle"
-                  src="chrome://browser/locale/preferences/applicationManager.properties"/>
-  </stringbundleset>
-
-  <stack flex="1">
-  <hbox flex="1">
-
-    <!-- category list -->
-    <richlistbox id="categories">
-      <richlistitem id="category-general"
-                    class="category"
-                    value="paneGeneral"
-                    helpTopic="prefs-main"
-                    tooltiptext="&paneGeneral.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneGeneral.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-search"
-                    class="category"
-                    value="paneSearch"
-                    helpTopic="prefs-search"
-                    tooltiptext="&paneSearch.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneSearch.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-content"
-                    class="category"
-                    value="paneContent"
-                    helpTopic="prefs-content"
-                    tooltiptext="&paneContent.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneContent.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-application"
-                    class="category"
-                    value="paneApplications"
-                    helpTopic="prefs-applications"
-                    tooltiptext="&paneApplications.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneApplications.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-privacy"
-                    class="category"
-                    value="panePrivacy"
-                    helpTopic="prefs-privacy"
-                    tooltiptext="&panePrivacy.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&panePrivacy.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-containers"
-                    class="category"
-                    value="paneContainers"
-                    helpTopic="prefs-containers"
-                    hidden="true"/>
-
-      <richlistitem id="category-security"
-                    class="category"
-                    value="paneSecurity"
-                    helpTopic="prefs-security"
-                    tooltiptext="&paneSecurity.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneSecurity.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-sync"
-                    class="category"
-                    value="paneSync"
-                    helpTopic="prefs-weave"
-                    tooltiptext="&paneSync.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneSync.title;</label>
-      </richlistitem>
-
-      <richlistitem id="category-advanced"
-                    class="category"
-                    value="paneAdvanced"
-                    helpTopic="prefs-advanced-general"
-                    tooltiptext="&paneAdvanced.title;"
-                    align="center">
-        <image class="category-icon"/>
-        <label class="category-name" flex="1">&paneAdvanced.title;</label>
-      </richlistitem>
-    </richlistbox>
-
-    <keyset>
-      <!-- Disable the findbar because it doesn't work properly.
-           Remove this keyset once bug 1094240 ("disablefastfind" attribute
-           broken in e10s mode) is fixed. -->
-      <key key="&focusSearch1.key;" modifiers="accel" id="focusSearch1" oncommand=";"/>
-    </keyset>
-
-    <vbox class="main-content" flex="1">
-      <prefpane id="mainPrefPane">
-#include main.xul
-#include search.xul
-#include privacy.xul
-#include containers.xul
-#include advanced.xul
-#include applications.xul
-#include content.xul
-#include security.xul
-#include sync.xul
-      </prefpane>
-    </vbox>
-
-  </hbox>
-
-    <vbox id="dialogOverlay" align="center" pack="center">
-      <groupbox id="dialogBox"
-                orient="vertical"
-                pack="end"
-                role="dialog"
-                aria-labelledby="dialogTitle">
-        <caption flex="1" align="center">
-          <label id="dialogTitle" flex="1"></label>
-          <button id="dialogClose"
-                  class="close-icon"
-                  aria-label="&preferencesCloseButton.label;"/>
-        </caption>
-        <browser id="dialogFrame"
-                 name="dialogFrame"
-                 autoscroll="false"
-                 disablehistory="true"/>
-      </groupbox>
-    </vbox>
-  </stack>
-</page>
diff --git a/browser/components/preferences/in-content/privacy.js b/browser/components/preferences/in-content/privacy.js
deleted file mode 100644
index 7dfc7de5a..000000000
--- a/browser/components/preferences/in-content/privacy.js
+++ /dev/null
@@ -1,712 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://gre/modules/AppConstants.jsm");
-Components.utils.import("resource://gre/modules/PluralForm.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "ContextualIdentityService",
-                                  "resource://gre/modules/ContextualIdentityService.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PluralForm",
-                                  "resource://gre/modules/PluralForm.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,
-
-  /**
-   * Show the Tracking Protection UI depending on the
-   * privacy.trackingprotection.ui.enabled pref, and linkify its Learn More link
-   */
-  _initTrackingProtection: function () {
-    if (!Services.prefs.getBoolPref("privacy.trackingprotection.ui.enabled")) {
-      return;
-    }
-
-    let link = document.getElementById("trackingProtectionLearnMore");
-    let url = Services.urlFormatter.formatURLPref("app.support.baseURL") + "tracking-protection";
-    link.setAttribute("href", url);
-
-    this.trackingProtectionReadPrefs();
-
-    document.getElementById("trackingprotectionbox").hidden = false;
-    document.getElementById("trackingprotectionpbmbox").hidden = true;
-  },
-
-  /**
-   * Linkify the Learn More link of the Private Browsing Mode Tracking
-   * Protection UI.
-   */
-  _initTrackingProtectionPBM: function () {
-    let link = document.getElementById("trackingProtectionPBMLearnMore");
-    let url = Services.urlFormatter.formatURLPref("app.support.baseURL") + "tracking-protection-pbm";
-    link.setAttribute("href", url);
-  },
-
-  /**
-   * Initialize autocomplete to ensure prefs are in sync.
-   */
-  _initAutocomplete: function () {
-    Components.classes["@mozilla.org/autocomplete/search;1?name=unifiedcomplete"]
-              .getService(Components.interfaces.mozIPlacesAutoComplete);
-  },
-
-  /**
-   * Show the Containers UI depending on the privacy.userContext.ui.enabled pref.
-   */
-  _initBrowserContainers: function () {
-    if (!Services.prefs.getBoolPref("privacy.userContext.ui.enabled")) {
-      return;
-    }
-
-    let link = document.getElementById("browserContainersLearnMore");
-    link.href = Services.urlFormatter.formatURLPref("app.support.baseURL") + "containers";
-
-    document.getElementById("browserContainersbox").hidden = false;
-
-    document.getElementById("browserContainersCheckbox").checked =
-      Services.prefs.getBoolPref("privacy.userContext.enabled");
-  },
-
-  _checkBrowserContainers: function(event) {
-    let checkbox = document.getElementById("browserContainersCheckbox");
-    if (checkbox.checked) {
-      Services.prefs.setBoolPref("privacy.userContext.enabled", true);
-      return;
-    }
-
-    let count = ContextualIdentityService.countContainerTabs();
-    if (count == 0) {
-      Services.prefs.setBoolPref("privacy.userContext.enabled", false);
-      return;
-    }
-
-    let bundlePreferences = document.getElementById("bundlePreferences");
-
-    let title = bundlePreferences.getString("disableContainersAlertTitle");
-    let message = PluralForm.get(count, bundlePreferences.getString("disableContainersMsg"))
-                            .replace("#S", count)
-    let okButton = PluralForm.get(count, bundlePreferences.getString("disableContainersOkButton"))
-                             .replace("#S", count)
-    let cancelButton = bundlePreferences.getString("disableContainersButton2");
-
-    let buttonFlags = (Ci.nsIPrompt.BUTTON_TITLE_IS_STRING * Ci.nsIPrompt.BUTTON_POS_0) +
-                      (Ci.nsIPrompt.BUTTON_TITLE_IS_STRING * Ci.nsIPrompt.BUTTON_POS_1);
-
-    let rv = Services.prompt.confirmEx(window, title, message, buttonFlags,
-                                       okButton, cancelButton, null, null, {});
-    if (rv == 0) {
-      ContextualIdentityService.closeAllContainerTabs();
-      Services.prefs.setBoolPref("privacy.userContext.enabled", false);
-      return;
-    }
-
-    checkbox.checked = true;
-  },
-
-  /**
-   * Sets up the UI for the number of days of history to keep, and updates the
-   * label of the "Clear Now..." button.
-   */
-  init: function ()
-  {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gPrivacyPane));
-    }
-
-    this._updateSanitizeSettingsButton();
-    this.initializeHistoryMode();
-    this.updateHistoryModePane();
-    this.updatePrivacyMicroControls();
-    this.initAutoStartPrivateBrowsingReverter();
-    this._initTrackingProtection();
-    this._initTrackingProtectionPBM();
-    this._initAutocomplete();
-    this._initBrowserContainers();
-
-    setEventListener("privacy.sanitize.sanitizeOnShutdown", "change",
-                     gPrivacyPane._updateSanitizeSettingsButton);
-    setEventListener("browser.privatebrowsing.autostart", "change",
-                     gPrivacyPane.updatePrivacyMicroControls);
-    setEventListener("historyMode", "command", function () {
-      gPrivacyPane.updateHistoryModePane();
-      gPrivacyPane.updateHistoryModePrefs();
-      gPrivacyPane.updatePrivacyMicroControls();
-      gPrivacyPane.updateAutostart();
-    });
-    setEventListener("historyRememberClear", "click", function () {
-      gPrivacyPane.clearPrivateDataNow(false);
-      return false;
-    });
-    setEventListener("historyRememberCookies", "click", function () {
-      gPrivacyPane.showCookies();
-      return false;
-    });
-    setEventListener("historyDontRememberClear", "click", function () {
-      gPrivacyPane.clearPrivateDataNow(true);
-      return false;
-    });
-    setEventListener("doNotTrackSettings", "click", function () {
-      gPrivacyPane.showDoNotTrackSettings();
-      return false;
-    });
-    setEventListener("privateBrowsingAutoStart", "command",
-                     gPrivacyPane.updateAutostart);
-    setEventListener("cookieExceptions", "command",
-                     gPrivacyPane.showCookieExceptions);
-    setEventListener("showCookiesButton", "command",
-                     gPrivacyPane.showCookies);
-    setEventListener("clearDataSettings", "command",
-                     gPrivacyPane.showClearPrivateDataSettings);
-    setEventListener("trackingProtectionRadioGroup", "command",
-                     gPrivacyPane.trackingProtectionWritePrefs);
-    setEventListener("trackingProtectionExceptions", "command",
-                     gPrivacyPane.showTrackingProtectionExceptions);
-    setEventListener("changeBlockList", "command",
-                     gPrivacyPane.showBlockLists);
-    setEventListener("changeBlockListPBM", "command",
-                     gPrivacyPane.showBlockLists);
-    setEventListener("browserContainersCheckbox", "command",
-                     gPrivacyPane._checkBrowserContainers);
-    setEventListener("browserContainersSettings", "command",
-                     gPrivacyPane.showContainerSettings);
-  },
-
-  // TRACKING PROTECTION MODE
-
-  /**
-   * Selects the right item of the Tracking Protection radiogroup.
-   */
-  trackingProtectionReadPrefs() {
-    let enabledPref = document.getElementById("privacy.trackingprotection.enabled");
-    let pbmPref = document.getElementById("privacy.trackingprotection.pbmode.enabled");
-    let radiogroup = document.getElementById("trackingProtectionRadioGroup");
-
-    // Global enable takes precedence over enabled in Private Browsing.
-    if (enabledPref.value) {
-      radiogroup.value = "always";
-    } else if (pbmPref.value) {
-      radiogroup.value = "private";
-    } else {
-      radiogroup.value = "never";
-    }
-  },
-
-  /**
-   * Sets the pref values based on the selected item of the radiogroup.
-   */
-  trackingProtectionWritePrefs() {
-    let enabledPref = document.getElementById("privacy.trackingprotection.enabled");
-    let pbmPref = document.getElementById("privacy.trackingprotection.pbmode.enabled");
-    let radiogroup = document.getElementById("trackingProtectionRadioGroup");
-
-    switch (radiogroup.value) {
-      case "always":
-        enabledPref.value = true;
-        pbmPref.value = true;
-        break;
-      case "private":
-        enabledPref.value = false;
-        pbmPref.value = true;
-        break;
-      case "never":
-        enabledPref.value = false;
-        pbmPref.value = false;
-        break;
-    }
-  },
-
-  // 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 are set to the values that correspond
-   * to keeping some part of history, 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 set values here if needed.
-   */
-  prefsForKeepingHistory: {
-    "places.history.enabled": true, // History is enabled
-    "browser.formfill.enable": true, // Form information is saved
-    "network.cookie.cookieBehavior": 0, // All cookies are enabled
-    "network.cookie.lifetimePolicy": 0, // Cookies use supplied lifetime
-    "privacy.sanitize.sanitizeOnShutdown": false, // Private date is NOT cleared on shutdown
-  },
-
-  /**
-   * 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 preferences values are set to keep history
-   *
-   * @param aPrefs an array of pref names to check for
-   * @returns boolean true if all of the prefs are set to keep history,
-   *                  false otherwise
-   */
-  _checkHistoryValues: function(aPrefs) {
-    for (let pref of Object.keys(aPrefs)) {
-      if (document.getElementById(pref).value != aPrefs[pref])
-        return false;
-    }
-    return true;
-  },
-
-  /**
-   * Initialize the history mode menulist based on the privacy preferences
-   */
-  initializeHistoryMode: function PPP_initializeHistoryMode()
-  {
-    let mode;
-    let getVal = aPref => document.getElementById(aPref).value;
-
-    if (this._checkHistoryValues(this.prefsForKeepingHistory)) {
-      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 if needed
-      let rememberHistoryCheckbox = document.getElementById("rememberHistory");
-      if (!rememberHistoryCheckbox.checked)
-        rememberHistoryCheckbox.checked = true;
-
-      // select the remember forms history option
-      document.getElementById("browser.formfill.enable").value = true;
-
-      // select the allow 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) {
-        let control = document.getElementById(aElement);
-        let preferenceId = control.getAttribute("preference");
-        if (!preferenceId) {
-          let dependentControlId = control.getAttribute("control");
-          if (dependentControlId) {
-            let dependentControl = document.getElementById(dependentControlId);
-            preferenceId = dependentControl.getAttribute("preference");
-          }
-        }
-
-        let preference = preferenceId ? document.getElementById(preferenceId) : {};
-        control.disabled = disabled || preference.locked;
-      });
-
-      // 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,
-  _lastCheckState: 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;
-      }
-
-      let buttonIndex = confirmRestartPrompt(autoStart.checked, 1,
-                                             true, false);
-      if (buttonIndex == CONFIRM_RESTART_PROMPT_RESTART_NOW) {
-        pref.value = autoStart.hasAttribute('checked');
-        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');
-      }
-      pref.value = autoStart.hasAttribute('checked');
-      mode.selectedIndex = this._lastMode;
-      mode.doCommand();
-
-      this._shouldPromptForRestart = true;
-  },
-
-  /**
-   * Displays fine-grained, per-site preferences for tracking protection.
-   */
-  showTrackingProtectionExceptions() {
-    let bundlePreferences = document.getElementById("bundlePreferences");
-    let params = {
-      permissionType: "trackingprotection",
-      hideStatusColumn: true,
-      windowTitle: bundlePreferences.getString("trackingprotectionpermissionstitle"),
-      introText: bundlePreferences.getString("trackingprotectionpermissionstext"),
-    };
-    gSubDialog.open("chrome://browser/content/preferences/permissions.xul",
-                    null, params);
-  },
-
-  /**
-   * Displays container panel for customising and adding containers.
-   */
-  showContainerSettings() {
-    gotoPref("containers");
-  },
-
-  /**
-   * Displays the available block lists for tracking protection.
-   */
-  showBlockLists: function ()
-  {
-    var bundlePreferences = document.getElementById("bundlePreferences");
-    let brandName = document.getElementById("bundleBrand")
-                            .getString("brandShortName");
-    var params = { brandShortName: brandName,
-                   windowTitle: bundlePreferences.getString("blockliststitle"),
-                   introText: bundlePreferences.getString("blockliststext") };
-    gSubDialog.open("chrome://browser/content/preferences/blocklists.xul",
-                    null, params);
-  },
-
-  /**
-   * Displays the Do Not Track settings dialog.
-   */
-  showDoNotTrackSettings() {
-    gSubDialog.open("chrome://browser/content/preferences/donottrack.xul",
-                    "resizable=no");
-  },
-
-  // 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") };
-    gSubDialog.open("chrome://browser/content/preferences/permissions.xul",
-                    null, params);
-  },
-
-  /**
-   * Displays all the user's cookies in a dialog.
-   */
-  showCookies: function (aCategory)
-  {
-    gSubDialog.open("chrome://browser/content/preferences/cookies.xul");
-  },
-
-  // 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 ()
-  {
-    gSubDialog.open("chrome://browser/content/preferences/sanitize.xul", "resizable=no");
-  },
-
-
-  /**
-   * 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;
-    }
-
-    gSubDialog.open("chrome://browser/content/sanitize.xul", "resizable=no", null, () => {
-      // 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;
-   },
-
-  // CONTAINERS
-
-  /*
-   * preferences:
-   *
-   * privacy.userContext.enabled
-   * - true if containers is enabled
-   */
-
-   /**
-    * Enables/disables the Settings button used to configure containers
-    */
-   readBrowserContainersCheckbox: function ()
-   {
-     var pref = document.getElementById("privacy.userContext.enabled");
-     var settings = document.getElementById("browserContainersSettings");
-
-     settings.disabled = !pref.value;
-   }
-
-};
diff --git a/browser/components/preferences/in-content/privacy.xul b/browser/components/preferences/in-content/privacy.xul
deleted file mode 100644
index 6ac6c88a4..000000000
--- a/browser/components/preferences/in-content/privacy.xul
+++ /dev/null
@@ -1,308 +0,0 @@
-# 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/.
-
-<!-- Privacy panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/privacy.js"/>
-
-<preferences id="privacyPreferences" hidden="true" data-category="panePrivacy">
-
-  <!-- Tracking -->
-  <preference id="privacy.trackingprotection.enabled"
-              name="privacy.trackingprotection.enabled"
-              type="bool"/>
-  <preference id="privacy.trackingprotection.pbmode.enabled"
-              name="privacy.trackingprotection.pbmode.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"/>
-  <preference id="pref.privacy.disable_button.change_blocklist"
-              name="pref.privacy.disable_button.change_blocklist"
-              type="bool"/>
-  <preference id="pref.privacy.disable_button.tracking_protection_exceptions"
-              name="pref.privacy.disable_button.tracking_protection_exceptions"
-              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"
-              type="bool"/>
-  <preference id="privacy.sanitize.timeSpan"
-              name="privacy.sanitize.timeSpan"
-              type="int"/>
-  <!-- Private Browsing -->
-  <preference id="browser.privatebrowsing.autostart"
-              name="browser.privatebrowsing.autostart"
-              type="bool"/>
-</preferences>
-
-<hbox id="header-privacy"
-      class="header"
-      hidden="true"
-      data-category="panePrivacy">
-  <label class="header-name" flex="1">&panePrivacy.title;</label>
-  <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-<!-- Tracking -->
-<groupbox id="trackingGroup" data-category="panePrivacy" hidden="true">
-  <vbox id="trackingprotectionbox" hidden="true">
-    <hbox align="start">
-      <vbox>
-        <caption><label>&trackingProtectionHeader.label;
-          <label id="trackingProtectionLearnMore" class="text-link"
-                 value="&trackingProtectionLearnMore.label;"/>
-        </label></caption>
-        <radiogroup id="trackingProtectionRadioGroup">
-          <radio value="always"
-                 label="&trackingProtectionAlways.label;"
-                 accesskey="&trackingProtectionAlways.accesskey;"/>
-          <radio value="private"
-                 label="&trackingProtectionPrivate.label;"
-                 accesskey="&trackingProtectionPrivate.accesskey;"/>
-          <radio value="never"
-                 label="&trackingProtectionNever.label;"
-                 accesskey="&trackingProtectionNever.accesskey;"/>
-        </radiogroup>
-      </vbox>
-      <spacer flex="1" />
-      <vbox>
-        <button id="trackingProtectionExceptions"
-                label="&trackingProtectionExceptions.label;"
-                accesskey="&trackingProtectionExceptions.accesskey;"
-                preference="pref.privacy.disable_button.tracking_protection_exceptions"/>
-        <button id="changeBlockList"
-                label="&changeBlockList.label;"
-                accesskey="&changeBlockList.accesskey;"
-                preference="pref.privacy.disable_button.change_blocklist"/>
-      </vbox>
-    </hbox>
-  </vbox>
-  <vbox id="trackingprotectionpbmbox">
-    <caption><label>&tracking.label;</label></caption>
-    <hbox align="center">
-      <checkbox id="trackingProtectionPBM"
-                preference="privacy.trackingprotection.pbmode.enabled"
-                accesskey="&trackingProtectionPBM5.accesskey;"
-                label="&trackingProtectionPBM5.label;" />
-      <label id="trackingProtectionPBMLearnMore"
-             class="text-link"
-             value="&trackingProtectionPBMLearnMore.label;"/>
-      <spacer flex="1" />
-      <button id="changeBlockListPBM"
-              label="&changeBlockList.label;" accesskey="&changeBlockList.accesskey;"
-              preference="pref.privacy.disable_button.change_blocklist"/>
-    </hbox>
-  </vbox>
-  <vbox>
-    <description>&doNotTrack.pre.label;<label
-    class="text-link" id="doNotTrackSettings"
-    >&doNotTrack.settings.label;</label>&doNotTrack.post.label;</description>
-  </vbox>
-</groupbox>
-
-<!-- History -->
-<groupbox id="historyGroup" data-category="panePrivacy" hidden="true">
-  <caption><label>&history.label;</label></caption>
-  <hbox align="center">
-    <label id="historyModeLabel"
-           control="historyMode"
-           accesskey="&historyHeader.pre.accesskey;">&historyHeader.pre.label;
-    </label>
-    <menulist id="historyMode">
-      <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 id="historyRememberPane">
-      <hbox align="center" flex="1">
-        <vbox flex="1">
-          <description>&rememberDescription.label;</description>
-          <separator class="thin"/>
-          <description>&rememberActions.pre.label;<label
-          class="text-link" id="historyRememberClear"
-          >&rememberActions.clearHistory.label;</label>&rememberActions.middle.label;<label
-          class="text-link" id="historyRememberCookies"
-          >&rememberActions.removeCookies.label;</label>&rememberActions.post.label;</description>
-        </vbox>
-      </hbox>
-    </vbox>
-    <vbox id="historyDontRememberPane">
-      <hbox align="center" flex="1">
-        <vbox flex="1">
-          <description>&dontrememberDescription.label;</description>
-          <separator class="thin"/>
-          <description>&dontrememberActions.pre.label;<label
-          class="text-link" id="historyDontRememberClear"
-          >&dontrememberActions.clearHistory.label;</label>&dontrememberActions.post.label;</description>
-        </vbox>
-      </hbox>
-    </vbox>
-    <vbox id="historyCustomPane">
-      <separator class="thin"/>
-      <vbox>
-        <vbox align="start">
-          <checkbox id="privateBrowsingAutoStart"
-                    label="&privateBrowsingPermanent2.label;"
-                    accesskey="&privateBrowsingPermanent2.accesskey;"
-                    preference="browser.privatebrowsing.autostart"/>
-        </vbox>
-        <vbox class="indent">
-          <vbox align="start">
-            <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"/>
-          </vbox>
-          <hbox id="cookiesBox">
-            <checkbox id="acceptCookies" label="&acceptCookies.label;"
-                      preference="network.cookie.cookieBehavior"
-                      accesskey="&acceptCookies.accesskey;"
-                      onsyncfrompreference="return gPrivacyPane.readAcceptCookies();"
-                      onsynctopreference="return gPrivacyPane.writeAcceptCookies();"/>
-            <spacer flex="1" />
-            <button id="cookieExceptions"
-                    label="&cookieExceptions.label;" accesskey="&cookieExceptions.accesskey;"
-                    preference="pref.privacy.disable_button.cookie_exceptions"/>
-          </hbox>
-          <hbox id="acceptThirdPartyRow"
-                class="indent"
-                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 id="keepRow"
-                class="indent"
-                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>
-            <spacer flex="1"/>
-            <button id="showCookiesButton"
-                    label="&showCookies.label;" accesskey="&showCookies.accesskey;"
-                    preference="pref.privacy.disable_button.view_cookies"/>
-          </hbox>
-          <hbox id="clearDataBox"
-                align="center">
-            <checkbox id="alwaysClear"
-                      preference="privacy.sanitize.sanitizeOnShutdown"
-                      label="&clearOnClose.label;"
-                      accesskey="&clearOnClose.accesskey;"/>
-            <spacer flex="1"/>
-            <button id="clearDataSettings" label="&clearOnCloseSettings.label;"
-                    accesskey="&clearOnCloseSettings.accesskey;"/>
-          </hbox>
-        </vbox>
-      </vbox>
-    </vbox>
-  </deck>
-</groupbox>
-
-<!-- Location Bar -->
-<groupbox id="locationBarGroup"
-          data-category="panePrivacy"
-          hidden="true">
-  <caption><label>&locationBar.label;</label></caption>
-  <label id="locationBarSuggestionLabel">&locbar.suggest.label;</label>
-  <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"/>
-  <label class="text-link" onclick="gotoPref('search')">
-    &suggestionSettings.label;
-  </label>
-</groupbox>
-
-<!-- Containers -->
-<groupbox id="browserContainersGroup" data-category="panePrivacy" hidden="true">
-  <vbox id="browserContainersbox" hidden="true">
-    <caption><label>&browserContainersHeader.label;
-      <label id="browserContainersLearnMore" class="text-link"
-             value="&browserContainersLearnMore.label;"/>
-    </label></caption>
-    <hbox align="start">
-      <vbox>
-        <checkbox id="browserContainersCheckbox"
-                  label="&browserContainersEnabled.label;"
-                  accesskey="&browserContainersEnabled.accesskey;"
-                  preference="privacy.userContext.enabled"
-                  onsyncfrompreference="return gPrivacyPane.readBrowserContainersCheckbox();"/>
-      </vbox>
-      <spacer flex="1"/>
-      <vbox>
-        <button id="browserContainersSettings"
-                label="&browserContainersSettings.label;"
-                accesskey="&browserContainersSettings.accesskey;"/>
-      </vbox>
-    </hbox>
-  </vbox>
-</groupbox>
diff --git a/browser/components/preferences/in-content/search.js b/browser/components/preferences/in-content/search.js
deleted file mode 100644
index 55aa2c18c..000000000
--- a/browser/components/preferences/in-content/search.js
+++ /dev/null
@@ -1,604 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Task",
-                                  "resource://gre/modules/Task.jsm");
-
-const ENGINE_FLAVOR = "text/x-moz-search-engine";
-
-var gEngineView = null;
-
-var gSearchPane = {
-
-  /**
-   * Initialize autocomplete to ensure prefs are in sync.
-   */
-  _initAutocomplete: function () {
-    Components.classes["@mozilla.org/autocomplete/search;1?name=unifiedcomplete"]
-              .getService(Components.interfaces.mozIPlacesAutoComplete);
-  },
-
-  init: function ()
-  {
-    gEngineView = new EngineView(new EngineStore());
-    document.getElementById("engineList").view = gEngineView;
-    this.buildDefaultEngineDropDown();
-
-    let addEnginesLink = document.getElementById("addEngines");
-    let searchEnginesURL = Services.wm.getMostRecentWindow('navigator:browser')
-                                      .BrowserSearch.searchEnginesURL;
-    addEnginesLink.setAttribute("href", searchEnginesURL);
-
-    window.addEventListener("click", this, false);
-    window.addEventListener("command", this, false);
-    window.addEventListener("dragstart", this, false);
-    window.addEventListener("keypress", this, false);
-    window.addEventListener("select", this, false);
-    window.addEventListener("blur", this, true);
-
-    Services.obs.addObserver(this, "browser-search-engine-modified", false);
-    window.addEventListener("unload", () => {
-      Services.obs.removeObserver(this, "browser-search-engine-modified", false);
-    });
-
-    this._initAutocomplete();
-
-    let suggestsPref =
-      document.getElementById("browser.search.suggest.enabled");
-    suggestsPref.addEventListener("change", () => {
-      this.updateSuggestsCheckbox();
-    });
-    this.updateSuggestsCheckbox();
-  },
-
-  updateSuggestsCheckbox() {
-    let suggestsPref =
-      document.getElementById("browser.search.suggest.enabled");
-    let permanentPB =
-      Services.prefs.getBoolPref("browser.privatebrowsing.autostart");
-    let urlbarSuggests = document.getElementById("urlBarSuggestion");
-    urlbarSuggests.disabled = !suggestsPref.value || permanentPB;
-
-    let urlbarSuggestsPref =
-      document.getElementById("browser.urlbar.suggest.searches");
-    urlbarSuggests.checked = urlbarSuggestsPref.value;
-    if (urlbarSuggests.disabled) {
-      urlbarSuggests.checked = false;
-    }
-
-    let permanentPBLabel =
-      document.getElementById("urlBarSuggestionPermanentPBLabel");
-    permanentPBLabel.hidden = urlbarSuggests.hidden || !permanentPB;
-  },
-
-  buildDefaultEngineDropDown: function() {
-    // This is called each time something affects the list of engines.
-    let list = document.getElementById("defaultEngine");
-    // Set selection to the current default engine.
-    let currentEngine = Services.search.currentEngine.name;
-
-    // If the current engine isn't in the list any more, select the first item.
-    let engines = gEngineView._engineStore._engines;
-    if (!engines.some(e => e.name == currentEngine))
-      currentEngine = engines[0].name;
-
-    // Now clean-up and rebuild the list.
-    list.removeAllItems();
-    gEngineView._engineStore._engines.forEach(e => {
-      let item = list.appendItem(e.name);
-      item.setAttribute("class", "menuitem-iconic searchengine-menuitem menuitem-with-favicon");
-      if (e.iconURI) {
-        item.setAttribute("image", e.iconURI.spec);
-      }
-      item.engine = e;
-      if (e.name == currentEngine)
-        list.selectedItem = item;
-    });
-  },
-
-  handleEvent: function(aEvent) {
-    switch (aEvent.type) {
-      case "click":
-        if (aEvent.target.id != "engineChildren" &&
-            !aEvent.target.classList.contains("searchEngineAction")) {
-          let engineList = document.getElementById("engineList");
-          // We don't want to toggle off selection while editing keyword
-          // so proceed only when the input field is hidden.
-          // We need to check that engineList.view is defined here
-          // because the "click" event listener is on <window> and the
-          // view might have been destroyed if the pane has been navigated
-          // away from.
-          if (engineList.inputField.hidden && engineList.view) {
-            let selection = engineList.view.selection;
-            if (selection.count > 0) {
-              selection.toggleSelect(selection.currentIndex);
-            }
-            engineList.blur();
-          }
-        }
-        break;
-      case "command":
-        switch (aEvent.target.id) {
-          case "":
-            if (aEvent.target.parentNode &&
-                aEvent.target.parentNode.parentNode &&
-                aEvent.target.parentNode.parentNode.id == "defaultEngine") {
-              gSearchPane.setDefaultEngine();
-            }
-            break;
-          case "restoreDefaultSearchEngines":
-            gSearchPane.onRestoreDefaults();
-            break;
-          case "removeEngineButton":
-            Services.search.removeEngine(gEngineView.selectedEngine.originalEngine);
-            break;
-        }
-        break;
-      case "dragstart":
-        if (aEvent.target.id == "engineChildren") {
-          onDragEngineStart(aEvent);
-        }
-        break;
-      case "keypress":
-        if (aEvent.target.id == "engineList") {
-          gSearchPane.onTreeKeyPress(aEvent);
-        }
-        break;
-      case "select":
-        if (aEvent.target.id == "engineList") {
-          gSearchPane.onTreeSelect();
-        }
-        break;
-      case "blur":
-        if (aEvent.target.id == "engineList" &&
-            aEvent.target.inputField == document.getBindingParent(aEvent.originalTarget)) {
-          gSearchPane.onInputBlur();
-        }
-        break;
-    }
-  },
-
-  observe: function(aEngine, aTopic, aVerb) {
-    if (aTopic == "browser-search-engine-modified") {
-      aEngine.QueryInterface(Components.interfaces.nsISearchEngine);
-      switch (aVerb) {
-      case "engine-added":
-        gEngineView._engineStore.addEngine(aEngine);
-        gEngineView.rowCountChanged(gEngineView.lastIndex, 1);
-        gSearchPane.buildDefaultEngineDropDown();
-        break;
-      case "engine-changed":
-        gEngineView._engineStore.reloadIcons();
-        gEngineView.invalidate();
-        break;
-      case "engine-removed":
-        gSearchPane.remove(aEngine);
-        break;
-      case "engine-current":
-        // If the user is going through the drop down using up/down keys, the
-        // dropdown may still be open (eg. on Windows) when engine-current is
-        // fired, so rebuilding the list unconditionally would get in the way.
-        let selectedEngine =
-          document.getElementById("defaultEngine").selectedItem.engine;
-        if (selectedEngine.name != aEngine.name)
-          gSearchPane.buildDefaultEngineDropDown();
-        break;
-      case "engine-default":
-        // Not relevant
-        break;
-      }
-    }
-  },
-
-  onInputBlur: function(aEvent) {
-    let tree = document.getElementById("engineList");
-    if (!tree.hasAttribute("editing"))
-      return;
-
-    // Accept input unless discarded.
-    let accept = aEvent.charCode != KeyEvent.DOM_VK_ESCAPE;
-    tree.stopEditing(accept);
-  },
-
-  onTreeSelect: function() {
-    document.getElementById("removeEngineButton").disabled =
-      !gEngineView.isEngineSelectedAndRemovable();
-  },
-
-  onTreeKeyPress: function(aEvent) {
-    let index = gEngineView.selectedIndex;
-    let tree = document.getElementById("engineList");
-    if (tree.hasAttribute("editing"))
-      return;
-
-    if (aEvent.charCode == KeyEvent.DOM_VK_SPACE) {
-      // Space toggles the checkbox.
-      let newValue = !gEngineView._engineStore.engines[index].shown;
-      gEngineView.setCellValue(index, tree.columns.getFirstColumn(),
-                               newValue.toString());
-      // Prevent page from scrolling on the space key.
-      aEvent.preventDefault();
-    }
-    else {
-      let isMac = Services.appinfo.OS == "Darwin";
-      if ((isMac && aEvent.keyCode == KeyEvent.DOM_VK_RETURN) ||
-          (!isMac && aEvent.keyCode == KeyEvent.DOM_VK_F2)) {
-        tree.startEditing(index, tree.columns.getLastColumn());
-      } else if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE ||
-                 (isMac && aEvent.shiftKey &&
-                  aEvent.keyCode == KeyEvent.DOM_VK_BACK_SPACE &&
-                  gEngineView.isEngineSelectedAndRemovable())) {
-        // Delete and Shift+Backspace (Mac) removes selected engine.
-        Services.search.removeEngine(gEngineView.selectedEngine.originalEngine);
-     }
-    }
-  },
-
-  onRestoreDefaults: function() {
-    let num = gEngineView._engineStore.restoreDefaultEngines();
-    gEngineView.rowCountChanged(0, num);
-    gEngineView.invalidate();
-  },
-
-  showRestoreDefaults: function(aEnable) {
-    document.getElementById("restoreDefaultSearchEngines").disabled = !aEnable;
-  },
-
-  remove: function(aEngine) {
-    let index = gEngineView._engineStore.removeEngine(aEngine);
-    gEngineView.rowCountChanged(index, -1);
-    gEngineView.invalidate();
-    gEngineView.selection.select(Math.min(index, gEngineView.lastIndex));
-    gEngineView.ensureRowIsVisible(gEngineView.currentIndex);
-    document.getElementById("engineList").focus();
-  },
-
-  editKeyword: Task.async(function* (aEngine, aNewKeyword) {
-    let keyword = aNewKeyword.trim();
-    if (keyword) {
-      let eduplicate = false;
-      let dupName = "";
-
-      // Check for duplicates in Places keywords.
-      let bduplicate = !!(yield PlacesUtils.keywords.fetch(keyword));
-
-      // Check for duplicates in changes we haven't committed yet
-      let engines = gEngineView._engineStore.engines;
-      for (let engine of engines) {
-        if (engine.alias == keyword &&
-            engine.name != aEngine.name) {
-          eduplicate = true;
-          dupName = engine.name;
-          break;
-        }
-      }
-
-      // Notify the user if they have chosen an existing engine/bookmark keyword
-      if (eduplicate || bduplicate) {
-        let strings = document.getElementById("engineManagerBundle");
-        let dtitle = strings.getString("duplicateTitle");
-        let bmsg = strings.getString("duplicateBookmarkMsg");
-        let emsg = strings.getFormattedString("duplicateEngineMsg", [dupName]);
-
-        Services.prompt.alert(window, dtitle, eduplicate ? emsg : bmsg);
-        return false;
-      }
-    }
-
-    gEngineView._engineStore.changeEngine(aEngine, "alias", keyword);
-    gEngineView.invalidate();
-    return true;
-  }),
-
-  saveOneClickEnginesList: function () {
-    let hiddenList = [];
-    for (let engine of gEngineView._engineStore.engines) {
-      if (!engine.shown)
-        hiddenList.push(engine.name);
-    }
-    document.getElementById("browser.search.hiddenOneOffs").value =
-      hiddenList.join(",");
-  },
-
-  setDefaultEngine: function () {
-    Services.search.currentEngine =
-      document.getElementById("defaultEngine").selectedItem.engine;
-  }
-};
-
-function onDragEngineStart(event) {
-  var selectedIndex = gEngineView.selectedIndex;
-  var tree = document.getElementById("engineList");
-  var row = { }, col = { }, child = { };
-  tree.treeBoxObject.getCellAt(event.clientX, event.clientY, row, col, child);
-  if (selectedIndex >= 0 && !gEngineView.isCheckBox(row.value, col.value)) {
-    event.dataTransfer.setData(ENGINE_FLAVOR, selectedIndex.toString());
-    event.dataTransfer.effectAllowed = "move";
-  }
-}
-
-
-function EngineStore() {
-  let pref = document.getElementById("browser.search.hiddenOneOffs").value;
-  this.hiddenList = pref ? pref.split(",") : [];
-
-  this._engines = Services.search.getVisibleEngines().map(this._cloneEngine, this);
-  this._defaultEngines = Services.search.getDefaultEngines().map(this._cloneEngine, this);
-
-  // check if we need to disable the restore defaults button
-  var someHidden = this._defaultEngines.some(e => e.hidden);
-  gSearchPane.showRestoreDefaults(someHidden);
-}
-EngineStore.prototype = {
-  _engines: null,
-  _defaultEngines: null,
-
-  get engines() {
-    return this._engines;
-  },
-  set engines(val) {
-    this._engines = val;
-    return val;
-  },
-
-  _getIndexForEngine: function ES_getIndexForEngine(aEngine) {
-    return this._engines.indexOf(aEngine);
-  },
-
-  _getEngineByName: function ES_getEngineByName(aName) {
-    return this._engines.find(engine => engine.name == aName);
-  },
-
-  _cloneEngine: function ES_cloneEngine(aEngine) {
-    var clonedObj={};
-    for (var i in aEngine)
-      clonedObj[i] = aEngine[i];
-    clonedObj.originalEngine = aEngine;
-    clonedObj.shown = this.hiddenList.indexOf(clonedObj.name) == -1;
-    return clonedObj;
-  },
-
-  // Callback for Array's some(). A thisObj must be passed to some()
-  _isSameEngine: function ES_isSameEngine(aEngineClone) {
-    return aEngineClone.originalEngine == this.originalEngine;
-  },
-
-  addEngine: function ES_addEngine(aEngine) {
-    this._engines.push(this._cloneEngine(aEngine));
-  },
-
-  moveEngine: function ES_moveEngine(aEngine, aNewIndex) {
-    if (aNewIndex < 0 || aNewIndex > this._engines.length - 1)
-      throw new Error("ES_moveEngine: invalid aNewIndex!");
-    var index = this._getIndexForEngine(aEngine);
-    if (index == -1)
-      throw new Error("ES_moveEngine: invalid engine?");
-
-    if (index == aNewIndex)
-      return; // nothing to do
-
-    // Move the engine in our internal store
-    var removedEngine = this._engines.splice(index, 1)[0];
-    this._engines.splice(aNewIndex, 0, removedEngine);
-
-    Services.search.moveEngine(aEngine.originalEngine, aNewIndex);
-  },
-
-  removeEngine: function ES_removeEngine(aEngine) {
-    if (this._engines.length == 1) {
-      throw new Error("Cannot remove last engine!");
-    }
-
-    let engineName = aEngine.name;
-    let index = this._engines.findIndex(element => element.name == engineName);
-
-    if (index == -1)
-      throw new Error("invalid engine?");
-
-    let removedEngine = this._engines.splice(index, 1)[0];
-
-    if (this._defaultEngines.some(this._isSameEngine, removedEngine))
-      gSearchPane.showRestoreDefaults(true);
-    gSearchPane.buildDefaultEngineDropDown();
-    return index;
-  },
-
-  restoreDefaultEngines: function ES_restoreDefaultEngines() {
-    var added = 0;
-
-    for (var i = 0; i < this._defaultEngines.length; ++i) {
-      var e = this._defaultEngines[i];
-
-      // If the engine is already in the list, just move it.
-      if (this._engines.some(this._isSameEngine, e)) {
-        this.moveEngine(this._getEngineByName(e.name), i);
-      } else {
-        // Otherwise, add it back to our internal store
-
-        // The search service removes the alias when an engine is hidden,
-        // so clear any alias we may have cached before unhiding the engine.
-        e.alias = "";
-
-        this._engines.splice(i, 0, e);
-        let engine = e.originalEngine;
-        engine.hidden = false;
-        Services.search.moveEngine(engine, i);
-        added++;
-      }
-    }
-    Services.search.resetToOriginalDefaultEngine();
-    gSearchPane.showRestoreDefaults(false);
-    gSearchPane.buildDefaultEngineDropDown();
-    return added;
-  },
-
-  changeEngine: function ES_changeEngine(aEngine, aProp, aNewValue) {
-    var index = this._getIndexForEngine(aEngine);
-    if (index == -1)
-      throw new Error("invalid engine?");
-
-    this._engines[index][aProp] = aNewValue;
-    aEngine.originalEngine[aProp] = aNewValue;
-  },
-
-  reloadIcons: function ES_reloadIcons() {
-    this._engines.forEach(function (e) {
-      e.uri = e.originalEngine.uri;
-    });
-  }
-};
-
-function EngineView(aEngineStore) {
-  this._engineStore = aEngineStore;
-}
-EngineView.prototype = {
-  _engineStore: null,
-  tree: null,
-
-  get lastIndex() {
-    return this.rowCount - 1;
-  },
-  get selectedIndex() {
-    var seln = this.selection;
-    if (seln.getRangeCount() > 0) {
-      var min = {};
-      seln.getRangeAt(0, min, {});
-      return min.value;
-    }
-    return -1;
-  },
-  get selectedEngine() {
-    return this._engineStore.engines[this.selectedIndex];
-  },
-
-  // Helpers
-  rowCountChanged: function (index, count) {
-    this.tree.rowCountChanged(index, count);
-  },
-
-  invalidate: function () {
-    this.tree.invalidate();
-  },
-
-  ensureRowIsVisible: function (index) {
-    this.tree.ensureRowIsVisible(index);
-  },
-
-  getSourceIndexFromDrag: function (dataTransfer) {
-    return parseInt(dataTransfer.getData(ENGINE_FLAVOR));
-  },
-
-  isCheckBox: function(index, column) {
-    return column.id == "engineShown";
-  },
-
-  isEngineSelectedAndRemovable: function() {
-    return this.selectedIndex != -1 && this.lastIndex != 0;
-  },
-
-  // nsITreeView
-  get rowCount() {
-    return this._engineStore.engines.length;
-  },
-
-  getImageSrc: function(index, column) {
-    if (column.id == "engineName") {
-      if (this._engineStore.engines[index].iconURI)
-        return this._engineStore.engines[index].iconURI.spec;
-
-      if (window.devicePixelRatio > 1)
-        return "chrome://browser/skin/search-engine-placeholder@2x.png";
-      return "chrome://browser/skin/search-engine-placeholder.png";
-    }
-
-    return "";
-  },
-
-  getCellText: function(index, column) {
-    if (column.id == "engineName")
-      return this._engineStore.engines[index].name;
-    else if (column.id == "engineKeyword")
-      return this._engineStore.engines[index].alias;
-    return "";
-  },
-
-  setTree: function(tree) {
-    this.tree = tree;
-  },
-
-  canDrop: function(targetIndex, orientation, dataTransfer) {
-    var sourceIndex = this.getSourceIndexFromDrag(dataTransfer);
-    return (sourceIndex != -1 &&
-            sourceIndex != targetIndex &&
-            sourceIndex != targetIndex + orientation);
-  },
-
-  drop: function(dropIndex, orientation, dataTransfer) {
-    var sourceIndex = this.getSourceIndexFromDrag(dataTransfer);
-    var sourceEngine = this._engineStore.engines[sourceIndex];
-
-    const nsITreeView = Components.interfaces.nsITreeView;
-    if (dropIndex > sourceIndex) {
-      if (orientation == nsITreeView.DROP_BEFORE)
-        dropIndex--;
-    } else if (orientation == nsITreeView.DROP_AFTER) {
-      dropIndex++;
-    }
-
-    this._engineStore.moveEngine(sourceEngine, dropIndex);
-    gSearchPane.showRestoreDefaults(true);
-    gSearchPane.buildDefaultEngineDropDown();
-
-    // Redraw, and adjust selection
-    this.invalidate();
-    this.selection.select(dropIndex);
-  },
-
-  selection: null,
-  getRowProperties: function(index) { return ""; },
-  getCellProperties: function(index, column) { return ""; },
-  getColumnProperties: function(column) { return ""; },
-  isContainer: function(index) { return false; },
-  isContainerOpen: function(index) { return false; },
-  isContainerEmpty: function(index) { return false; },
-  isSeparator: function(index) { return false; },
-  isSorted: function(index) { return false; },
-  getParentIndex: function(index) { return -1; },
-  hasNextSibling: function(parentIndex, index) { return false; },
-  getLevel: function(index) { return 0; },
-  getProgressMode: function(index, column) { },
-  getCellValue: function(index, column) {
-    if (column.id == "engineShown")
-      return this._engineStore.engines[index].shown;
-    return undefined;
-  },
-  toggleOpenState: function(index) { },
-  cycleHeader: function(column) { },
-  selectionChanged: function() { },
-  cycleCell: function(row, column) { },
-  isEditable: function(index, column) { return column.id != "engineName"; },
-  isSelectable: function(index, column) { return false; },
-  setCellValue: function(index, column, value) {
-    if (column.id == "engineShown") {
-      this._engineStore.engines[index].shown = value == "true";
-      gEngineView.invalidate();
-      gSearchPane.saveOneClickEnginesList();
-    }
-  },
-  setCellText: function(index, column, value) {
-    if (column.id == "engineKeyword") {
-      gSearchPane.editKeyword(this._engineStore.engines[index], value)
-                 .then(valid => {
-        if (!valid)
-          document.getElementById("engineList").startEditing(index, column);
-      });
-    }
-  },
-  performAction: function(action) { },
-  performActionOnRow: function(action, index) { },
-  performActionOnCell: function(action, index, column) { }
-};
diff --git a/browser/components/preferences/in-content/search.xul b/browser/components/preferences/in-content/search.xul
deleted file mode 100644
index 95c7acd85..000000000
--- a/browser/components/preferences/in-content/search.xul
+++ /dev/null
@@ -1,86 +0,0 @@
-    <preferences id="searchPreferences" hidden="true" data-category="paneSearch">
-
-      <preference id="browser.search.suggest.enabled"
-                  name="browser.search.suggest.enabled"
-                  type="bool"/>
-
-      <preference id="browser.urlbar.suggest.searches"
-                  name="browser.urlbar.suggest.searches"
-                  type="bool"/>
-
-      <preference id="browser.search.hiddenOneOffs"
-                  name="browser.search.hiddenOneOffs"
-                  type="unichar"/>
-
-    </preferences>
-
-    <script type="application/javascript"
-            src="chrome://browser/content/preferences/in-content/search.js"/>
-
-    <stringbundle id="engineManagerBundle" src="chrome://browser/locale/engineManager.properties"/>
-
-    <hbox id="header-search"
-          class="header"
-          hidden="true"
-          data-category="paneSearch">
-      <label class="header-name" flex="1">&paneSearch.title;</label>
-      <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-    </hbox>
-
-    <!-- Default Search Engine -->
-    <groupbox id="defaultEngineGroup" align="start" data-category="paneSearch">
-      <caption label="&defaultSearchEngine.label;"/>
-      <label>&chooseYourDefaultSearchEngine.label;</label>
-      <menulist id="defaultEngine">
-        <menupopup/>
-      </menulist>
-      <checkbox id="suggestionsInSearchFieldsCheckbox"
-                label="&provideSearchSuggestions.label;"
-                accesskey="&provideSearchSuggestions.accesskey;"
-                preference="browser.search.suggest.enabled"/>
-      <vbox class="indent">
-        <checkbox id="urlBarSuggestion" label="&showURLBarSuggestions.label;"
-                  accesskey="&showURLBarSuggestions.accesskey;"
-                  preference="browser.urlbar.suggest.searches"/>
-        <hbox id="urlBarSuggestionPermanentPBLabel"
-              align="center" class="indent">
-          <label flex="1">&urlBarSuggestionsPermanentPB.label;</label>
-        </hbox>
-      </vbox>
-    </groupbox>
-
-    <groupbox id="oneClickSearchProvidersGroup" data-category="paneSearch">
-      <caption label="&oneClickSearchEngines.label;"/>
-      <label>&chooseWhichOneToDisplay.label;</label>
-
-      <tree id="engineList" flex="1" rows="8" hidecolumnpicker="true" editable="true"
-            seltype="single">
-        <treechildren id="engineChildren" flex="1"/>
-        <treecols>
-          <treecol id="engineShown" type="checkbox" editable="true" sortable="false"/>
-          <treecol id="engineName" flex="4" label="&engineNameColumn.label;" sortable="false"/>
-          <treecol id="engineKeyword" flex="1" label="&engineKeywordColumn.label;" editable="true"
-                   sortable="false"/>
-        </treecols>
-      </tree>
-
-      <hbox>
-        <button id="restoreDefaultSearchEngines"
-                label="&restoreDefaultSearchEngines.label;"
-                accesskey="&restoreDefaultSearchEngines.accesskey;"
-                />
-        <spacer flex="1"/>
-        <button id="removeEngineButton"
-                class="searchEngineAction"
-                label="&removeEngine.label;"
-                accesskey="&removeEngine.accesskey;"
-                disabled="true"
-                />
-      </hbox>
-
-      <separator class="thin"/>
-
-      <hbox id="addEnginesBox" pack="start">
-        <label id="addEngines" class="text-link" value="&addMoreSearchEngines.label;"/>
-      </hbox>
-    </groupbox>
diff --git a/browser/components/preferences/in-content/security.js b/browser/components/preferences/in-content/security.js
deleted file mode 100644
index 37a187f9c..000000000
--- a/browser/components/preferences/in-content/security.js
+++ /dev/null
@@ -1,306 +0,0 @@
-/* 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/. */
-
-XPCOMUtils.defineLazyModuleGetter(this, "LoginHelper",
- "resource://gre/modules/LoginHelper.jsm");
-
-Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
-
-var gSecurityPane = {
-  _pane: null,
-
-  /**
-   * Initializes master password UI.
-   */
-  init: function ()
-  {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gSecurityPane));
-    }
-
-    this._pane = document.getElementById("paneSecurity");
-    this._initMasterPasswordUI();
-#ifdef MOZ_SAFE_BROWSING
-    this._initSafeBrowsing();
-#endif
-
-    setEventListener("addonExceptions", "command",
-      gSecurityPane.showAddonExceptions);
-    setEventListener("passwordExceptions", "command",
-      gSecurityPane.showPasswordExceptions);
-    setEventListener("useMasterPassword", "command",
-      gSecurityPane.updateMasterPasswordButton);
-    setEventListener("changeMasterPassword", "command",
-      gSecurityPane.changeMasterPassword);
-    setEventListener("showPasswords", "command",
-      gSecurityPane.showPasswords);
-  },
-
-  // 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");
-    }
-
-    gSubDialog.open("chrome://browser/content/preferences/permissions.xul",
-                    null, params);
-  },
-
-  /**
-   * Parameters for the add-on install permissions dialog.
-   */
-  _addonParams:
-    {
-      blockVisible: false,
-      sessionVisible: false,
-      allowVisible: true,
-      prefilledHost: "",
-      permissionType: "install"
-    },
-
-  // 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;
-    }
-    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 ()
-  {
-    var bundlePrefs = document.getElementById("bundlePreferences");
-    var params = {
-      blockVisible: true,
-      sessionVisible: false,
-      allowVisible: false,
-      hideStatusColumn: true,
-      prefilledHost: "",
-      permissionType: "login-saving",
-      windowTitle: bundlePrefs.getString("savedLoginsExceptions_title"),
-      introText: bundlePrefs.getString("savedLoginsExceptions_desc")
-    };
-
-    gSubDialog.open("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;
-  },
-
-#ifdef MOZ_SAFE_BROWSING
-  _initSafeBrowsing() {
-    let enableSafeBrowsing = document.getElementById("enableSafeBrowsing");
-    let blockDownloads = document.getElementById("blockDownloads");
-    let blockUncommonUnwanted = document.getElementById("blockUncommonUnwanted");
-
-    let safeBrowsingPhishingPref = document.getElementById("browser.safebrowsing.phishing.enabled");
-    let safeBrowsingMalwarePref = document.getElementById("browser.safebrowsing.malware.enabled");
-
-    let blockDownloadsPref = document.getElementById("browser.safebrowsing.downloads.enabled");
-    let malwareTable = document.getElementById("urlclassifier.malwareTable");
-
-    let blockUnwantedPref = document.getElementById("browser.safebrowsing.downloads.remote.block_potentially_unwanted");
-    let blockUncommonPref = document.getElementById("browser.safebrowsing.downloads.remote.block_uncommon");
-
-    enableSafeBrowsing.addEventListener("command", function() {
-      safeBrowsingPhishingPref.value = enableSafeBrowsing.checked;
-      safeBrowsingMalwarePref.value = enableSafeBrowsing.checked;
-
-      if (enableSafeBrowsing.checked) {
-        blockDownloads.removeAttribute("disabled");
-        if (blockDownloads.checked) {
-          blockUncommonUnwanted.removeAttribute("disabled");
-        }
-      } else {
-        blockDownloads.setAttribute("disabled", "true");
-        blockUncommonUnwanted.setAttribute("disabled", "true");
-      }
-    });
-
-    blockDownloads.addEventListener("command", function() {
-      blockDownloadsPref.value = blockDownloads.checked;
-      if (blockDownloads.checked) {
-        blockUncommonUnwanted.removeAttribute("disabled");
-      } else {
-        blockUncommonUnwanted.setAttribute("disabled", "true");
-      }
-    });
-
-    blockUncommonUnwanted.addEventListener("command", function() {
-      blockUnwantedPref.value = blockUncommonUnwanted.checked;
-      blockUncommonPref.value = blockUncommonUnwanted.checked;
-
-      let malware = malwareTable.value
-        .split(",")
-        .filter(x => x !== "goog-unwanted-shavar" && x !== "test-unwanted-simple");
-
-      if (blockUncommonUnwanted.checked) {
-        malware.push("goog-unwanted-shavar");
-        malware.push("test-unwanted-simple");
-      }
-
-      // sort alphabetically to keep the pref consistent
-      malware.sort();
-
-      malwareTable.value = malware.join(",");
-    });
-
-    // set initial values
-
-    enableSafeBrowsing.checked = safeBrowsingPhishingPref.value && safeBrowsingMalwarePref.value;
-    if (!enableSafeBrowsing.checked) {
-      blockDownloads.setAttribute("disabled", "true");
-      blockUncommonUnwanted.setAttribute("disabled", "true");
-    }
-
-    blockDownloads.checked = blockDownloadsPref.value;
-    if (!blockDownloadsPref.value) {
-      blockUncommonUnwanted.setAttribute("disabled", "true");
-    }
-
-    blockUncommonUnwanted.checked = blockUnwantedPref.value && blockUncommonPref.value;
-  },
-#endif
-
-  /**
-   * 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 ()
-  {
-    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"));
-      this._initMasterPasswordUI();
-    }
-    else {
-      gSubDialog.open("chrome://mozapps/content/preferences/removemp.xul",
-                      null, null, this._initMasterPasswordUI.bind(this));
-    }
-  },
-
-  /**
-   * Displays a dialog in which the master password may be changed.
-   */
-  changeMasterPassword: function ()
-  {
-    gSubDialog.open("chrome://mozapps/content/preferences/changemp.xul",
-                    "resizable=no", null, this._initMasterPasswordUI.bind(this));
-  },
-
-  /**
-   * Shows the sites where the user has saved passwords and the associated login
-   * information.
-   */
-  showPasswords: function ()
-  {
-    gSubDialog.open("chrome://passwordmgr/content/passwordManager.xul");
-  }
-
-};
diff --git a/browser/components/preferences/in-content/security.xul b/browser/components/preferences/in-content/security.xul
deleted file mode 100644
index 33e1471bd..000000000
--- a/browser/components/preferences/in-content/security.xul
+++ /dev/null
@@ -1,141 +0,0 @@
-# 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/.
-
-<!-- Security panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/security.js"/>
-
-<preferences id="securityPreferences" hidden="true" data-category="paneSecurity">
-  <!-- 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 -->
-  <preference id="xpinstall.whitelist.required"
-              name="xpinstall.whitelist.required"
-              type="bool"/>
-
-#ifdef MOZ_SAFE_BROWSING
-  <!-- Malware, phishing -->
-  <preference id="browser.safebrowsing.malware.enabled"
-              name="browser.safebrowsing.malware.enabled"
-              type="bool"/>
-  <preference id="browser.safebrowsing.phishing.enabled"
-              name="browser.safebrowsing.phishing.enabled"
-              type="bool"/>
-
-  <preference id="browser.safebrowsing.downloads.enabled"
-              name="browser.safebrowsing.downloads.enabled"
-              type="bool"/>
-
-  <preference id="urlclassifier.malwareTable"
-              name="urlclassifier.malwareTable"
-              type="string"/>
-
-  <preference id="browser.safebrowsing.downloads.remote.block_potentially_unwanted"
-              name="browser.safebrowsing.downloads.remote.block_potentially_unwanted"
-              type="bool"/>
-  <preference id="browser.safebrowsing.downloads.remote.block_uncommon"
-              name="browser.safebrowsing.downloads.remote.block_uncommon"
-              type="bool"/>
-#endif
-
-  <!-- Passwords -->
-  <preference id="signon.rememberSignons" name="signon.rememberSignons" type="bool"/>
-  <preference id="signon.autofillForms"   name="signon.autofillForms"   type="bool"/>
-
-</preferences>
-
-<hbox id="header-security"
-      class="header"
-      hidden="true"
-      data-category="paneSecurity">
-  <label class="header-name" flex="1">&paneSecurity.title;</label>
-  <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-<!-- addons -->
-<groupbox id="addonsPhishingGroup" data-category="paneSecurity" hidden="true">
-  <caption><label>&general.label;</label></caption>
-
-  <hbox id="addonInstallBox">
-    <checkbox id="warnAddonInstall"
-              label="&warnAddonInstall.label;"
-              accesskey="&warnAddonInstall.accesskey;"
-              preference="xpinstall.whitelist.required"
-              onsyncfrompreference="return gSecurityPane.readWarnAddonInstall();"/>
-    <spacer flex="1"/>
-    <button id="addonExceptions"
-            label="&addonExceptions.label;"
-            accesskey="&addonExceptions.accesskey;"/>
-  </hbox>
-
-#ifdef MOZ_SAFE_BROWSING
-<!-- Safebrowsing (phishing) UI -->
-  <separator class="thin"/>
-  <vbox align="start">
-    <checkbox id="enableSafeBrowsing"
-              label="&enableSafeBrowsing.label;"
-              accesskey="&enableSafeBrowsing.accesskey;" />
-    <vbox class="indent">
-      <checkbox id="blockDownloads"
-                label="&blockDownloads.label;"
-                accesskey="&blockDownloads.accesskey;" />
-      <checkbox id="blockUncommonUnwanted"
-                label="&blockUncommonUnwanted.label;"
-                accesskey="&blockUncommonUnwanted.accesskey;" />
-    </vbox>
-  </vbox>
-#endif
-</groupbox>
-
-<!-- Passwords -->
-<groupbox id="passwordsGroup" orient="vertical" data-category="paneSecurity" hidden="true">
-  <caption><label>&logins.label;</label></caption>
-
-  <hbox id="savePasswordsBox">
-    <checkbox id="savePasswords"
-              label="&rememberLogins.label;" accesskey="&rememberLogins.accesskey;"
-              preference="signon.rememberSignons"
-              onsyncfrompreference="return gSecurityPane.readSavePasswords();"/>
-    <spacer flex="1"/>
-    <button id="passwordExceptions"
-            label="&passwordExceptions.label;"
-            accesskey="&passwordExceptions.accesskey;"
-            preference="pref.privacy.disable_button.view_passwords_exceptions"/>
-  </hbox>
-  <checkbox id="autofillPasswords" flex="1"
-         label="&autofillPasswords.label;" accesskey="&autofillPasswords.accesskey;"
-         preference="signon.autofillForms"/>
-  <grid id="passwordGrid">
-    <columns>
-      <column flex="1"/>
-      <column/>
-    </columns>
-    <rows id="passwordRows">
-      <row id="masterPasswordRow">
-        <hbox id="masterPasswordBox">
-          <checkbox id="useMasterPassword"
-                    label="&useMasterPassword.label;"
-                    accesskey="&useMasterPassword.accesskey;"/>
-          <spacer flex="1"/>
-        </hbox>
-        <button id="changeMasterPassword"
-                label="&changeMasterPassword.label;"
-                accesskey="&changeMasterPassword.accesskey;"/>
-      </row>
-      <row id="showPasswordRow">
-        <hbox id="showPasswordsBox"/>
-        <button id="showPasswords"
-                label="&savedLogins.label;" accesskey="&savedLogins.accesskey;"
-                preference="pref.privacy.disable_button.view_passwords"/>
-      </row>
-    </rows>
-  </grid>
-</groupbox>
diff --git a/browser/components/preferences/in-content/subdialogs.js b/browser/components/preferences/in-content/subdialogs.js
deleted file mode 100644
index bb8d0048f..000000000
--- a/browser/components/preferences/in-content/subdialogs.js
+++ /dev/null
@@ -1,434 +0,0 @@
-/* - 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/. */
-
-"use strict";
-
-var gSubDialog = {
-  _closingCallback: null,
-  _closingEvent: null,
-  _isClosing: false,
-  _frame: null,
-  _overlay: null,
-  _box: null,
-  _injectedStyleSheets: [
-    "chrome://browser/skin/preferences/preferences.css",
-    "chrome://global/skin/in-content/common.css",
-    "chrome://browser/skin/preferences/in-content/preferences.css",
-    "chrome://browser/skin/preferences/in-content/dialog.css",
-  ],
-  _resizeObserver: null,
-
-  init: function() {
-    this._frame = document.getElementById("dialogFrame");
-    this._overlay = document.getElementById("dialogOverlay");
-    this._box = document.getElementById("dialogBox");
-    this._closeButton = document.getElementById("dialogClose");
-  },
-
-  updateTitle: function(aEvent) {
-    if (aEvent.target != gSubDialog._frame.contentDocument)
-      return;
-    document.getElementById("dialogTitle").textContent = gSubDialog._frame.contentDocument.title;
-  },
-
-  injectXMLStylesheet: function(aStylesheetURL) {
-    let contentStylesheet = this._frame.contentDocument.createProcessingInstruction(
-      'xml-stylesheet',
-      'href="' + aStylesheetURL + '" type="text/css"'
-    );
-    this._frame.contentDocument.insertBefore(contentStylesheet,
-                                             this._frame.contentDocument.documentElement);
-  },
-
-  open: function(aURL, aFeatures = null, aParams = null, aClosingCallback = null) {
-    // If we're already open/opening on this URL, do nothing.
-    if (this._openedURL == aURL && !this._isClosing) {
-      return;
-    }
-    // If we're open on some (other) URL or we're closing, open when closing has finished.
-    if (this._openedURL || this._isClosing) {
-      if (!this._isClosing) {
-        this.close();
-      }
-      let args = Array.from(arguments);
-      this._closingPromise.then(() => {
-        this.open.apply(this, args);
-      });
-      return;
-    }
-    this._addDialogEventListeners();
-
-    let features = (aFeatures ? aFeatures + "," : "") + "resizable,dialog=no,centerscreen";
-    let dialog = window.openDialog(aURL, "dialogFrame", features, aParams);
-    if (aClosingCallback) {
-      this._closingCallback = aClosingCallback.bind(dialog);
-    }
-
-    this._closingEvent = null;
-    this._isClosing = false;
-    this._openedURL = aURL;
-
-    features = features.replace(/,/g, "&");
-    let featureParams = new URLSearchParams(features.toLowerCase());
-    this._box.setAttribute("resizable", featureParams.has("resizable") &&
-                                        featureParams.get("resizable") != "no" &&
-                                        featureParams.get("resizable") != "0");
-  },
-
-  close: function(aEvent = null) {
-    if (this._isClosing) {
-      return;
-    }
-    this._isClosing = true;
-    this._closingPromise = new Promise(resolve => {
-      this._resolveClosePromise = resolve;
-    });
-
-    if (this._closingCallback) {
-      try {
-        this._closingCallback.call(null, aEvent);
-      } catch (ex) {
-        Cu.reportError(ex);
-      }
-      this._closingCallback = null;
-    }
-
-    this._removeDialogEventListeners();
-
-    this._overlay.style.visibility = "";
-    // Clear the sizing inline styles.
-    this._frame.removeAttribute("style");
-    // Clear the sizing attributes
-    this._box.removeAttribute("width");
-    this._box.removeAttribute("height");
-    this._box.style.removeProperty("min-height");
-    this._box.style.removeProperty("min-width");
-
-    setTimeout(() => {
-      // Unload the dialog after the event listeners run so that the load of about:blank isn't
-      // cancelled by the ESC <key>.
-      let onBlankLoad = e => {
-        if (this._frame.contentWindow.location.href == "about:blank") {
-          this._frame.removeEventListener("load", onBlankLoad);
-          // We're now officially done closing, so update the state to reflect that.
-          delete this._openedURL;
-          this._isClosing = false;
-          this._resolveClosePromise();
-        }
-      };
-      this._frame.addEventListener("load", onBlankLoad);
-      this._frame.loadURI("about:blank");
-    }, 0);
-  },
-
-  handleEvent: function(aEvent) {
-    switch (aEvent.type) {
-      case "command":
-        this._frame.contentWindow.close();
-        break;
-      case "dialogclosing":
-        this._onDialogClosing(aEvent);
-        break;
-      case "DOMTitleChanged":
-        this.updateTitle(aEvent);
-        break;
-      case "DOMFrameContentLoaded":
-        this._onContentLoaded(aEvent);
-        break;
-      case "load":
-        this._onLoad(aEvent);
-        break;
-      case "unload":
-        this._onUnload(aEvent);
-        break;
-      case "keydown":
-        this._onKeyDown(aEvent);
-        break;
-      case "focus":
-        this._onParentWinFocus(aEvent);
-        break;
-    }
-  },
-
-  /* Private methods */
-
-  _onUnload: function(aEvent) {
-    if (aEvent.target.location.href == this._openedURL) {
-      this._frame.contentWindow.close();
-    }
-  },
-
-  _onContentLoaded: function(aEvent) {
-    if (aEvent.target != this._frame || aEvent.target.contentWindow.location == "about:blank") {
-      return;
-    }
-
-    for (let styleSheetURL of this._injectedStyleSheets) {
-      this.injectXMLStylesheet(styleSheetURL);
-    }
-
-    // Provide the ability for the dialog to know that it is being loaded "in-content".
-    this._frame.contentDocument.documentElement.setAttribute("subdialog", "true");
-
-    this._frame.contentWindow.addEventListener("dialogclosing", this);
-
-    let oldResizeBy = this._frame.contentWindow.resizeBy;
-    this._frame.contentWindow.resizeBy = function(resizeByWidth, resizeByHeight) {
-      // Only handle resizeByHeight currently.
-      let frameHeight = gSubDialog._frame.clientHeight;
-      let boxMinHeight = parseFloat(getComputedStyle(gSubDialog._box).minHeight, 10);
-
-      gSubDialog._frame.style.height = (frameHeight + resizeByHeight) + "px";
-      gSubDialog._box.style.minHeight = (boxMinHeight + resizeByHeight) + "px";
-
-      oldResizeBy.call(gSubDialog._frame.contentWindow, resizeByWidth, resizeByHeight);
-    };
-
-    // Make window.close calls work like dialog closing.
-    let oldClose = this._frame.contentWindow.close;
-    this._frame.contentWindow.close = function() {
-      var closingEvent = gSubDialog._closingEvent;
-      if (!closingEvent) {
-        closingEvent = new CustomEvent("dialogclosing", {
-          bubbles: true,
-          detail: { button: null },
-        });
-
-        gSubDialog._frame.contentWindow.dispatchEvent(closingEvent);
-      }
-
-      gSubDialog.close(closingEvent);
-      oldClose.call(gSubDialog._frame.contentWindow);
-    };
-
-    // XXX: Hack to make focus during the dialog's load functions work. Make the element visible
-    // sooner in DOMContentLoaded but mostly invisible instead of changing visibility just before
-    // the dialog's load event.
-    this._overlay.style.visibility = "visible";
-    this._overlay.style.opacity = "0.01";
-  },
-
-  _onLoad: function(aEvent) {
-    if (aEvent.target.contentWindow.location == "about:blank") {
-      return;
-    }
-
-    // Do this on load to wait for the CSS to load and apply before calculating the size.
-    let docEl = this._frame.contentDocument.documentElement;
-
-    let groupBoxTitle = document.getAnonymousElementByAttribute(this._box, "class", "groupbox-title");
-    let groupBoxTitleHeight = groupBoxTitle.clientHeight +
-                              parseFloat(getComputedStyle(groupBoxTitle).borderBottomWidth);
-
-    let groupBoxBody = document.getAnonymousElementByAttribute(this._box, "class", "groupbox-body");
-    // These are deduced from styles which we don't change, so it's safe to get them now:
-    let boxVerticalPadding = 2 * parseFloat(getComputedStyle(groupBoxBody).paddingTop);
-    let boxHorizontalPadding = 2 * parseFloat(getComputedStyle(groupBoxBody).paddingLeft);
-    let boxHorizontalBorder = 2 * parseFloat(getComputedStyle(this._box).borderLeftWidth);
-    let boxVerticalBorder = 2 * parseFloat(getComputedStyle(this._box).borderTopWidth);
-
-    // The difference between the frame and box shouldn't change, either:
-    let boxRect = this._box.getBoundingClientRect();
-    let frameRect = this._frame.getBoundingClientRect();
-    let frameSizeDifference = (frameRect.top - boxRect.top) + (boxRect.bottom - frameRect.bottom);
-
-    // Then determine and set a bunch of width stuff:
-    let frameMinWidth = docEl.style.width || docEl.scrollWidth + "px";
-    let frameWidth = docEl.getAttribute("width") ? docEl.getAttribute("width") + "px" :
-                     frameMinWidth;
-    this._frame.style.width = frameWidth;
-    this._box.style.minWidth = "calc(" +
-                               (boxHorizontalBorder + boxHorizontalPadding) +
-                               "px + " + frameMinWidth + ")";
-
-    // Now do the same but for the height. We need to do this afterwards because otherwise
-    // XUL assumes we'll optimize for height and gives us "wrong" values which then are no
-    // longer correct after we set the width:
-    let frameMinHeight = docEl.style.height || docEl.scrollHeight + "px";
-    let frameHeight = docEl.getAttribute("height") ? docEl.getAttribute("height") + "px" :
-                                                     frameMinHeight;
-
-    // Now check if the frame height we calculated is possible at this window size,
-    // accounting for titlebar, padding/border and some spacing.
-    let maxHeight = window.innerHeight - frameSizeDifference - 30;
-    // Do this with a frame height in pixels...
-    let comparisonFrameHeight;
-    if (frameHeight.endsWith("em")) {
-      let fontSize = parseFloat(getComputedStyle(this._frame).fontSize);
-      comparisonFrameHeight = parseFloat(frameHeight, 10) * fontSize;
-    } else if (frameHeight.endsWith("px")) {
-      comparisonFrameHeight = parseFloat(frameHeight, 10);
-    } else {
-      Cu.reportError("This dialog (" + this._frame.contentWindow.location.href + ") " +
-                     "set a height in non-px-non-em units ('" + frameHeight + "'), " +
-                     "which is likely to lead to bad sizing in in-content preferences. " +
-                     "Please consider changing this.");
-      comparisonFrameHeight = parseFloat(frameHeight);
-    }
-
-    if (comparisonFrameHeight > maxHeight) {
-      // If the height is bigger than that of the window, we should let the contents scroll:
-      frameHeight = maxHeight + "px";
-      frameMinHeight = maxHeight + "px";
-      let containers = this._frame.contentDocument.querySelectorAll('.largeDialogContainer');
-      for (let container of containers) {
-        container.classList.add("doScroll");
-      }
-    }
-
-    this._frame.style.height = frameHeight;
-    this._box.style.minHeight = "calc(" +
-                                (boxVerticalBorder + groupBoxTitleHeight + boxVerticalPadding) +
-                                "px + " + frameMinHeight + ")";
-
-    this._overlay.style.visibility = "visible";
-    this._overlay.style.opacity = ""; // XXX: focus hack continued from _onContentLoaded
-
-    if (this._box.getAttribute("resizable") == "true") {
-      this._resizeObserver = new MutationObserver(this._onResize);
-      this._resizeObserver.observe(this._box, {attributes: true});
-    }
-
-    this._trapFocus();
-  },
-
-  _onResize: function(mutations) {
-    let frame = gSubDialog._frame;
-    // The width and height styles are needed for the initial
-    // layout of the frame, but afterward they need to be removed
-    // or their presence will restrict the contents of the <browser>
-    // from resizing to a smaller size.
-    frame.style.removeProperty("width");
-    frame.style.removeProperty("height");
-
-    let docEl = frame.contentDocument.documentElement;
-    let persistedAttributes = docEl.getAttribute("persist");
-    if (!persistedAttributes ||
-        (!persistedAttributes.includes("width") &&
-         !persistedAttributes.includes("height"))) {
-      return;
-    }
-
-    for (let mutation of mutations) {
-      if (mutation.attributeName == "width") {
-        docEl.setAttribute("width", docEl.scrollWidth);
-      } else if (mutation.attributeName == "height") {
-        docEl.setAttribute("height", docEl.scrollHeight);
-      }
-    }
-  },
-
-  _onDialogClosing: function(aEvent) {
-    this._frame.contentWindow.removeEventListener("dialogclosing", this);
-    this._closingEvent = aEvent;
-  },
-
-  _onKeyDown: function(aEvent) {
-    if (aEvent.currentTarget == window && aEvent.keyCode == aEvent.DOM_VK_ESCAPE &&
-        !aEvent.defaultPrevented) {
-      this.close(aEvent);
-      return;
-    }
-    if (aEvent.keyCode != aEvent.DOM_VK_TAB ||
-        aEvent.ctrlKey || aEvent.altKey || aEvent.metaKey) {
-      return;
-    }
-
-    let fm = Services.focus;
-
-    function isLastFocusableElement(el) {
-      // XXXgijs unfortunately there is no way to get the last focusable element without asking
-      // the focus manager to move focus to it.
-      let rv = el == fm.moveFocus(gSubDialog._frame.contentWindow, null, fm.MOVEFOCUS_LAST, 0);
-      fm.setFocus(el, 0);
-      return rv;
-    }
-
-    let forward = !aEvent.shiftKey;
-    // check if focus is leaving the frame (incl. the close button):
-    if ((aEvent.target == this._closeButton && !forward) ||
-        (isLastFocusableElement(aEvent.originalTarget) && forward)) {
-      aEvent.preventDefault();
-      aEvent.stopImmediatePropagation();
-      let parentWin = this._getBrowser().ownerGlobal;
-      if (forward) {
-        fm.moveFocus(parentWin, null, fm.MOVEFOCUS_FIRST, fm.FLAG_BYKEY);
-      } else {
-        // Somehow, moving back 'past' the opening doc is not trivial. Cheat by doing it in 2 steps:
-        fm.moveFocus(window, null, fm.MOVEFOCUS_ROOT, fm.FLAG_BYKEY);
-        fm.moveFocus(parentWin, null, fm.MOVEFOCUS_BACKWARD, fm.FLAG_BYKEY);
-      }
-    }
-  },
-
-  _onParentWinFocus: function(aEvent) {
-    // Explicitly check for the focus target of |window| to avoid triggering this when the window
-    // is refocused
-    if (aEvent.target != this._closeButton && aEvent.target != window) {
-      this._closeButton.focus();
-    }
-  },
-
-  _addDialogEventListeners: function() {
-    // Make the close button work.
-    this._closeButton.addEventListener("command", this);
-
-    // DOMTitleChanged isn't fired on the frame, only on the chromeEventHandler
-    let chromeBrowser = this._getBrowser();
-    chromeBrowser.addEventListener("DOMTitleChanged", this, true);
-
-    // Similarly DOMFrameContentLoaded only fires on the top window
-    window.addEventListener("DOMFrameContentLoaded", this, true);
-
-    // Wait for the stylesheets injected during DOMContentLoaded to load before showing the dialog
-    // otherwise there is a flicker of the stylesheet applying.
-    this._frame.addEventListener("load", this);
-
-    chromeBrowser.addEventListener("unload", this, true);
-    // Ensure we get <esc> keypresses even if nothing in the subdialog is focusable
-    // (happens on OS X when only text inputs and lists are focusable, and
-    //  the subdialog only has checkboxes/radiobuttons/buttons)
-    window.addEventListener("keydown", this, true);
-  },
-
-  _removeDialogEventListeners: function() {
-    let chromeBrowser = this._getBrowser();
-    chromeBrowser.removeEventListener("DOMTitleChanged", this, true);
-    chromeBrowser.removeEventListener("unload", this, true);
-
-    this._closeButton.removeEventListener("command", this);
-
-    window.removeEventListener("DOMFrameContentLoaded", this, true);
-    this._frame.removeEventListener("load", this);
-    this._frame.contentWindow.removeEventListener("dialogclosing", this);
-    window.removeEventListener("keydown", this, true);
-    if (this._resizeObserver) {
-      this._resizeObserver.disconnect();
-      this._resizeObserver = null;
-    }
-    this._untrapFocus();
-  },
-
-  _trapFocus: function() {
-    let fm = Services.focus;
-    fm.moveFocus(this._frame.contentWindow, null, fm.MOVEFOCUS_FIRST, 0);
-    this._frame.contentDocument.addEventListener("keydown", this, true);
-    this._closeButton.addEventListener("keydown", this);
-
-    window.addEventListener("focus", this, true);
-  },
-
-  _untrapFocus: function() {
-    this._frame.contentDocument.removeEventListener("keydown", this, true);
-    this._closeButton.removeEventListener("keydown", this);
-    window.removeEventListener("focus", this);
-  },
-
-  _getBrowser: function() {
-    return window.QueryInterface(Ci.nsIInterfaceRequestor)
-                 .getInterface(Ci.nsIWebNavigation)
-                 .QueryInterface(Ci.nsIDocShell)
-                 .chromeEventHandler;
-  },
-};
diff --git a/browser/components/preferences/in-content/sync.js b/browser/components/preferences/in-content/sync.js
deleted file mode 100644
index 27f7cd48c..000000000
--- a/browser/components/preferences/in-content/sync.js
+++ /dev/null
@@ -1,673 +0,0 @@
-/* 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/. */
-
-Components.utils.import("resource://services-sync/main.js");
-Components.utils.import("resource://gre/modules/Services.jsm");
-
-XPCOMUtils.defineLazyGetter(this, "FxAccountsCommon", function () {
-  return Components.utils.import("resource://gre/modules/FxAccountsCommon.js", {});
-});
-
-XPCOMUtils.defineLazyModuleGetter(this, "fxAccounts",
-  "resource://gre/modules/FxAccounts.jsm");
-
-const PAGE_NO_ACCOUNT = 0;
-const PAGE_HAS_ACCOUNT = 1;
-const PAGE_NEEDS_UPDATE = 2;
-const FXA_PAGE_LOGGED_OUT = 3;
-const FXA_PAGE_LOGGED_IN = 4;
-
-// Indexes into the "login status" deck.
-// We are in a successful verified state - everything should work!
-const FXA_LOGIN_VERIFIED = 0;
-// We have logged in to an unverified account.
-const FXA_LOGIN_UNVERIFIED = 1;
-// We are logged in locally, but the server rejected our credentials.
-const FXA_LOGIN_FAILED = 2;
-
-var gSyncPane = {
-  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.textContent = Weave.Utils.getErrorString(Weave.Status.login);
-    label.className = "error";
-  },
-
-  init: function () {
-    this._setupEventListeners();
-
-    // 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;
-    }
-
-    // it may take some time before we can determine what provider to use
-    // and the state of that provider, so show the "please wait" page.
-    this._showLoadPage(xps);
-
-    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();
-  },
-
-  _showLoadPage: function (xps) {
-    let username;
-    try {
-      username = Services.prefs.getCharPref("services.sync.username");
-    } catch (e) {}
-    if (!username) {
-      this.page = FXA_PAGE_LOGGED_OUT;
-    } else if (xps.fxAccountsEnabled) {
-      // Use cached values while we wait for the up-to-date values
-      let cachedComputerName;
-      try {
-        cachedComputerName = Services.prefs.getCharPref("services.sync.client.name");
-      }
-      catch (e) {
-        cachedComputerName = "";
-      }
-      document.getElementById("fxaEmailAddress1").textContent = username;
-      this._populateComputerName(cachedComputerName);
-      this.page = FXA_PAGE_LOGGED_IN;
-    } else { // Old Sync
-      this.page = PAGE_HAS_ACCOUNT;
-    }
-  },
-
-  _init: function () {
-    let topics = ["weave:service:login:error",
-                  "weave:service:login:finish",
-                  "weave:service:start-over:finish",
-                  "weave:service:setup-complete",
-                  "weave:service:logout:finish",
-                  FxAccountsCommon.ONVERIFIED_NOTIFICATION,
-                  FxAccountsCommon.ONLOGIN_NOTIFICATION,
-                  FxAccountsCommon.ON_PROFILE_CHANGE_NOTIFICATION,
-                  ];
-    // 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);
-
-    XPCOMUtils.defineLazyGetter(this, '_stringBundle', () => {
-      return Services.strings.createBundle("chrome://browser/locale/preferences/preferences.properties");
-    });
-
-    XPCOMUtils.defineLazyGetter(this, '_accountsStringBundle', () => {
-      return Services.strings.createBundle("chrome://browser/locale/accounts.properties");
-    });
-
-    let url = Services.prefs.getCharPref("identity.mobilepromo.android") + "sync-preferences";
-    document.getElementById("fxaMobilePromo-android").setAttribute("href", url);
-    document.getElementById("fxaMobilePromo-android-hasFxaAccount").setAttribute("href", url);
-    url = Services.prefs.getCharPref("identity.mobilepromo.ios") + "sync-preferences";
-    document.getElementById("fxaMobilePromo-ios").setAttribute("href", url);
-    document.getElementById("fxaMobilePromo-ios-hasFxaAccount").setAttribute("href", url);
-
-    document.getElementById("tosPP-small-ToS").setAttribute("href", gSyncUtils.tosURL);
-    document.getElementById("tosPP-normal-ToS").setAttribute("href", gSyncUtils.tosURL);
-    document.getElementById("tosPP-small-PP").setAttribute("href", gSyncUtils.privacyPolicyURL);
-    document.getElementById("tosPP-normal-PP").setAttribute("href", gSyncUtils.privacyPolicyURL);
-
-    fxAccounts.promiseAccountsManageURI(this._getEntryPoint()).then(url => {
-      document.getElementById("verifiedManage").setAttribute("href", url);
-    });
-
-    this.updateWeavePrefs();
-
-    this._initProfileImageUI();
-  },
-
-  _toggleComputerNameControls: function(editMode) {
-    let textbox = document.getElementById("fxaSyncComputerName");
-    textbox.disabled = !editMode;
-    document.getElementById("fxaChangeDeviceName").hidden = editMode;
-    document.getElementById("fxaCancelChangeDeviceName").hidden = !editMode;
-    document.getElementById("fxaSaveChangeDeviceName").hidden = !editMode;
-  },
-
-  _focusComputerNameTextbox: function() {
-    let textbox = document.getElementById("fxaSyncComputerName");
-    let valLength = textbox.value.length;
-    textbox.focus();
-    textbox.setSelectionRange(valLength, valLength);
-  },
-
-  _blurComputerNameTextbox: function() {
-    document.getElementById("fxaSyncComputerName").blur();
-  },
-
-  _focusAfterComputerNameTextbox: function() {
-    // Focus the most appropriate element that's *not* the "computer name" box.
-    Services.focus.moveFocus(window,
-                             document.getElementById("fxaSyncComputerName"),
-                             Services.focus.MOVEFOCUS_FORWARD, 0);
-  },
-
-  _updateComputerNameValue: function(save) {
-    if (save) {
-      let textbox = document.getElementById("fxaSyncComputerName");
-      Weave.Service.clientsEngine.localName = textbox.value;
-    }
-    this._populateComputerName(Weave.Service.clientsEngine.localName);
-  },
-
-  _setupEventListeners: function() {
-    function setEventListener(aId, aEventType, aCallback)
-    {
-      document.getElementById(aId)
-              .addEventListener(aEventType, aCallback.bind(gSyncPane));
-    }
-
-    setEventListener("noAccountSetup", "click", function (aEvent) {
-      aEvent.stopPropagation();
-      gSyncPane.openSetup(null);
-    });
-    setEventListener("noAccountPair", "click", function (aEvent) {
-      aEvent.stopPropagation();
-      gSyncPane.openSetup('pair');
-    });
-    setEventListener("syncChangePassword", "command",
-      () => gSyncUtils.changePassword());
-    setEventListener("syncResetPassphrase", "command",
-      () => gSyncUtils.resetPassphrase());
-    setEventListener("syncReset", "command", gSyncPane.resetSync);
-    setEventListener("syncAddDeviceLabel", "click", function () {
-      gSyncPane.openAddDevice();
-      return false;
-    });
-    setEventListener("syncEnginesList", "select", function () {
-      if (this.selectedCount)
-        this.clearSelection();
-    });
-    setEventListener("syncComputerName", "change", function (e) {
-      gSyncUtils.changeName(e.target);
-    });
-    setEventListener("fxaChangeDeviceName", "command", function () {
-      this._toggleComputerNameControls(true);
-      this._focusComputerNameTextbox();
-    });
-    setEventListener("fxaCancelChangeDeviceName", "command", function () {
-      // We explicitly blur the textbox because of bug 75324, then after
-      // changing the state of the buttons, force focus to whatever the focus
-      // manager thinks should be next (which on the mac, depends on an OSX
-      // keyboard access preference)
-      this._blurComputerNameTextbox();
-      this._toggleComputerNameControls(false);
-      this._updateComputerNameValue(false);
-      this._focusAfterComputerNameTextbox();
-    });
-    setEventListener("fxaSaveChangeDeviceName", "command", function () {
-      // Work around bug 75324 - see above.
-      this._blurComputerNameTextbox();
-      this._toggleComputerNameControls(false);
-      this._updateComputerNameValue(true);
-      this._focusAfterComputerNameTextbox();
-    });
-    setEventListener("unlinkDevice", "click", function () {
-      gSyncPane.startOver(true);
-      return false;
-    });
-    setEventListener("loginErrorUpdatePass", "click", function () {
-      gSyncPane.updatePass();
-      return false;
-    });
-    setEventListener("loginErrorResetPass", "click", function () {
-      gSyncPane.resetPass();
-      return false;
-    });
-    setEventListener("loginErrorStartOver", "click", function () {
-      gSyncPane.startOver(true);
-      return false;
-    });
-    setEventListener("noFxaSignUp", "command", function () {
-      gSyncPane.signUp();
-      return false;
-    });
-    setEventListener("noFxaSignIn", "command", function () {
-      gSyncPane.signIn();
-      return false;
-    });
-    setEventListener("fxaUnlinkButton", "command", function () {
-      gSyncPane.unlinkFirefoxAccount(true);
-    });
-    setEventListener("verifyFxaAccount", "command",
-      gSyncPane.verifyFirefoxAccount);
-    setEventListener("unverifiedUnlinkFxaAccount", "command", function () {
-      /* no warning as account can't have previously synced */
-      gSyncPane.unlinkFirefoxAccount(false);
-    });
-    setEventListener("rejectReSignIn", "command",
-      gSyncPane.reSignIn);
-    setEventListener("rejectUnlinkFxaAccount", "command", function () {
-      gSyncPane.unlinkFirefoxAccount(true);
-    });
-    setEventListener("fxaSyncComputerName", "keypress", function (e) {
-      if (e.keyCode == KeyEvent.DOM_VK_RETURN) {
-        document.getElementById("fxaSaveChangeDeviceName").click();
-      } else if (e.keyCode == KeyEvent.DOM_VK_ESCAPE) {
-        document.getElementById("fxaCancelChangeDeviceName").click();
-      }
-    });
-  },
-
-  _initProfileImageUI: function () {
-    try {
-      if (Services.prefs.getBoolPref("identity.fxaccounts.profile_image.enabled")) {
-        document.getElementById("fxaProfileImage").hidden = false;
-      }
-    } catch (e) { }
-  },
-
-  updateWeavePrefs: function () {
-    let service = Components.classes["@mozilla.org/weave/service;1"]
-                  .getService(Components.interfaces.nsISupports)
-                  .wrappedJSObject;
-    // service.fxAccountsEnabled is false iff sync is already configured for
-    // the legacy provider.
-    if (service.fxAccountsEnabled) {
-      let displayNameLabel = document.getElementById("fxaDisplayName");
-      let fxaEmailAddress1Label = document.getElementById("fxaEmailAddress1");
-      fxaEmailAddress1Label.hidden = false;
-      displayNameLabel.hidden = true;
-
-      let profileInfoEnabled;
-      try {
-        profileInfoEnabled = Services.prefs.getBoolPref("identity.fxaccounts.profile_image.enabled");
-      } catch (ex) {}
-
-      // determine the fxa status...
-      this._showLoadPage(service);
-
-      fxAccounts.getSignedInUser().then(data => {
-        if (!data) {
-          this.page = FXA_PAGE_LOGGED_OUT;
-          return false;
-        }
-        this.page = FXA_PAGE_LOGGED_IN;
-        // We are logged in locally, but maybe we are in a state where the
-        // server rejected our credentials (eg, password changed on the server)
-        let fxaLoginStatus = document.getElementById("fxaLoginStatus");
-        let syncReady;
-        // Not Verfied implies login error state, so check that first.
-        if (!data.verified) {
-          fxaLoginStatus.selectedIndex = FXA_LOGIN_UNVERIFIED;
-          syncReady = false;
-        // So we think we are logged in, so login problems are next.
-        // (Although if the Sync identity manager is still initializing, we
-        // ignore login errors and assume all will eventually be good.)
-        // LOGIN_FAILED_LOGIN_REJECTED explicitly means "you must log back in".
-        // All other login failures are assumed to be transient and should go
-        // away by themselves, so aren't reflected here.
-        } else if (Weave.Status.login == Weave.LOGIN_FAILED_LOGIN_REJECTED) {
-          fxaLoginStatus.selectedIndex = FXA_LOGIN_FAILED;
-          syncReady = false;
-        // Else we must be golden (or in an error state we expect to magically
-        // resolve itself)
-        } else {
-          fxaLoginStatus.selectedIndex = FXA_LOGIN_VERIFIED;
-          syncReady = true;
-        }
-        fxaEmailAddress1Label.textContent = data.email;
-        document.getElementById("fxaEmailAddress2").textContent = data.email;
-        document.getElementById("fxaEmailAddress3").textContent = data.email;
-        this._populateComputerName(Weave.Service.clientsEngine.localName);
-        let engines = document.getElementById("fxaSyncEngines")
-        for (let checkbox of engines.querySelectorAll("checkbox")) {
-          checkbox.disabled = !syncReady;
-        }
-        document.getElementById("fxaChangeDeviceName").disabled = !syncReady;
-
-        // Clear the profile image (if any) of the previously logged in account.
-        document.getElementById("fxaProfileImage").style.removeProperty("list-style-image");
-
-        // If the account is verified the next promise in the chain will
-        // fetch profile data.
-        return data.verified;
-      }).then(isVerified => {
-        if (isVerified) {
-          return fxAccounts.getSignedInUserProfile();
-        }
-        return null;
-      }).then(data => {
-        let fxaLoginStatus = document.getElementById("fxaLoginStatus");
-        if (data && profileInfoEnabled) {
-          if (data.displayName) {
-            fxaLoginStatus.setAttribute("hasName", true);
-            displayNameLabel.hidden = false;
-            displayNameLabel.textContent = data.displayName;
-          } else {
-            fxaLoginStatus.removeAttribute("hasName");
-          }
-          if (data.avatar) {
-            let bgImage = "url(\"" + data.avatar + "\")";
-            let profileImageElement = document.getElementById("fxaProfileImage");
-            profileImageElement.style.listStyleImage = bgImage;
-
-            let img = new Image();
-            img.onerror = () => {
-              // Clear the image if it has trouble loading. Since this callback is asynchronous
-              // we check to make sure the image is still the same before we clear it.
-              if (profileImageElement.style.listStyleImage === bgImage) {
-                profileImageElement.style.removeProperty("list-style-image");
-              }
-            };
-            img.src = data.avatar;
-          }
-        } else {
-          fxaLoginStatus.removeAttribute("hasName");
-        }
-      }, err => {
-        FxAccountsCommon.log.error(err);
-      }).catch(err => {
-        // If we get here something's really busted
-        Cu.reportError(String(err));
-      });
-
-    // If fxAccountEnabled is false and we are in a "not configured" state,
-    // then fxAccounts is probably fully disabled rather than just unconfigured,
-    // so handle this case.  This block can be removed once we remove support
-    // for fxAccounts being disabled.
-    } else if (Weave.Status.service == Weave.CLIENT_NOT_CONFIGURED ||
-               Weave.Svc.Prefs.get("firstSync", "") == "notReady") {
-      this.page = PAGE_NO_ACCOUNT;
-    // else: sync was previously configured for the legacy provider, so we
-    // make the "old" panels available.
-    } 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").textContent = Weave.Service.identity.account;
-      document.getElementById("syncComputerName").value = Weave.Service.clientsEngine.localName;
-      document.getElementById("tosPP-normal").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();
-  },
-
-  _getEntryPoint: function () {
-    let params = new URLSearchParams(document.URL.split("#")[0].split("?")[1] || "");
-    return params.get("entrypoint") || "preferences";
-  },
-
-  _openAboutAccounts: function(action) {
-    let entryPoint = this._getEntryPoint();
-    let params = new URLSearchParams();
-    if (action) {
-      params.set("action", action);
-    }
-    params.set("entrypoint", entryPoint);
-
-    this.replaceTabWithUrl("about:accounts?" + params);
-  },
-
-  /**
-   * 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 service = Components.classes["@mozilla.org/weave/service;1"]
-                  .getService(Components.interfaces.nsISupports)
-                  .wrappedJSObject;
-
-    if (service.fxAccountsEnabled) {
-      this._openAboutAccounts();
-    } else {
-      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);
-      }
-    }
-  },
-
-  openContentInBrowser: function(url, options) {
-    let win = Services.wm.getMostRecentWindow("navigator:browser");
-    if (!win) {
-      // no window to use, so use _openLink to create a new one.  We don't
-      // always use that as it prefers to open a new window rather than use
-      // an existing one.
-      gSyncUtils._openLink(url);
-      return;
-    }
-    win.switchToTabHavingURI(url, true, options);
-  },
-
-  // Replace the current tab with the specified URL.
-  replaceTabWithUrl(url) {
-    // Get the <browser> element hosting us.
-    let browser = window.QueryInterface(Ci.nsIInterfaceRequestor)
-                        .getInterface(Ci.nsIWebNavigation)
-                        .QueryInterface(Ci.nsIDocShell)
-                        .chromeEventHandler;
-    // And tell it to load our URL.
-    browser.loadURI(url);
-  },
-
-  signUp: function() {
-    this._openAboutAccounts("signup");
-  },
-
-  signIn: function() {
-    this._openAboutAccounts("signin");
-  },
-
-  reSignIn: function() {
-    this._openAboutAccounts("reauth");
-  },
-
-
-  clickOrSpaceOrEnterPressed: function(event) {
-    // Note: charCode is deprecated, but 'char' not yet implemented.
-    // Replace charCode with char when implemented, see Bug 680830
-    return ((event.type == "click" && event.button == 0) ||
-            (event.type == "keypress" &&
-             (event.charCode == KeyEvent.DOM_VK_SPACE || event.keyCode == KeyEvent.DOM_VK_RETURN)));
-  },
-
-  openChangeProfileImage: function(event) {
-    if (this.clickOrSpaceOrEnterPressed(event)) {
-      fxAccounts.promiseAccountsChangeProfileURI(this._getEntryPoint(), "avatar")
-          .then(url => {
-        this.openContentInBrowser(url, {
-          replaceQueryString: true
-        });
-      });
-      // Prevent page from scrolling on the space key.
-      event.preventDefault();
-    }
-  },
-
-  openManageFirefoxAccount: function(event) {
-    if (this.clickOrSpaceOrEnterPressed(event)) {
-      this.manageFirefoxAccount();
-      // Prevent page from scrolling on the space key.
-      event.preventDefault();
-    }
-  },
-
-  manageFirefoxAccount: function() {
-    fxAccounts.promiseAccountsManageURI(this._getEntryPoint())
-      .then(url => {
-        this.openContentInBrowser(url, {
-          replaceQueryString: true
-        });
-      });
-  },
-
-  verifyFirefoxAccount: function() {
-    let showVerifyNotification = (data) => {
-      let isError = !data;
-      let maybeNot = isError ? "Not" : "";
-      let sb = this._accountsStringBundle;
-      let title = sb.GetStringFromName("verification" + maybeNot + "SentTitle");
-      let email = !isError && data ? data.email : "";
-      let body = sb.formatStringFromName("verification" + maybeNot + "SentBody", [email], 1);
-      new Notification(title, { body })
-    }
-
-    let onError = () => {
-      showVerifyNotification();
-    };
-
-    let onSuccess = data => {
-      if (data) {
-        showVerifyNotification(data);
-      } else {
-        onError();
-      }
-    };
-
-    fxAccounts.resendVerificationEmail()
-      .then(fxAccounts.getSignedInUser, onError)
-      .then(onSuccess, onError);
-  },
-
-  openOldSyncSupportPage: function() {
-    let url = Services.urlFormatter.formatURLPref("app.support.baseURL") + "old-sync";
-    this.openContentInBrowser(url);
-  },
-
-  unlinkFirefoxAccount: function(confirm) {
-    if (confirm) {
-      // We use a string bundle shared with aboutAccounts.
-      let sb = Services.strings.createBundle("chrome://browser/locale/syncSetup.properties");
-      let disconnectLabel = sb.GetStringFromName("disconnect.label");
-      let title = sb.GetStringFromName("disconnect.verify.title");
-      let body = sb.GetStringFromName("disconnect.verify.bodyHeading") +
-                 "\n\n" +
-                 sb.GetStringFromName("disconnect.verify.bodyText");
-      let ps = Services.prompt;
-      let buttonFlags = (ps.BUTTON_POS_0 * ps.BUTTON_TITLE_IS_STRING) +
-                        (ps.BUTTON_POS_1 * ps.BUTTON_TITLE_CANCEL) +
-                        ps.BUTTON_POS_1_DEFAULT;
-
-      let factory = Cc["@mozilla.org/prompter;1"]
-                      .getService(Ci.nsIPromptFactory);
-      let prompt = factory.getPrompt(window, Ci.nsIPrompt);
-      let bag = prompt.QueryInterface(Ci.nsIWritablePropertyBag2);
-      bag.setPropertyAsBool("allowTabModal", true);
-
-      let pressed = prompt.confirmEx(title, body, buttonFlags,
-                                     disconnectLabel, null, null, null, {});
-
-      if (pressed != 0) { // 0 is the "continue" button
-        return;
-      }
-    }
-    fxAccounts.signOut().then(() => {
-      this.updateWeavePrefs();
-    });
-  },
-
-  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");
-  },
-
-  _populateComputerName(value) {
-    let textbox = document.getElementById("fxaSyncComputerName");
-    if (!textbox.hasAttribute("placeholder")) {
-      textbox.setAttribute("placeholder",
-                           Weave.Utils.getDefaultDeviceName());
-    }
-    textbox.value = value;
-  },
-};
diff --git a/browser/components/preferences/in-content/sync.xul b/browser/components/preferences/in-content/sync.xul
deleted file mode 100644
index f1aebf2aa..000000000
--- a/browser/components/preferences/in-content/sync.xul
+++ /dev/null
@@ -1,359 +0,0 @@
-# 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/.
-
-<!-- Sync panel -->
-
-<preferences id="syncEnginePrefs" hidden="true" data-category="paneSync">
-  <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/in-content/sync.js"/>
-<script type="application/javascript"
-        src="chrome://browser/content/sync/utils.js"/>
-
-<hbox id="header-sync"
-      class="header"
-      hidden="true"
-      data-category="paneSync">
-  <label class="header-name" flex="1">&paneSync.title;</label>
-  <html:a class="help-button text-link" target="_blank" aria-label="&helpButton.label;"></html:a>
-</hbox>
-
-<deck id="weavePrefsDeck" data-category="paneSync" hidden="true">
-  <!-- These panels are for the "legacy" sync provider -->
-  <vbox id="noAccount" align="center">
-    <spacer flex="1"/>
-    <description id="syncDesc">
-      &weaveDesc.label;
-    </description>
-    <separator/>
-    <label id="noAccountSetup" class="text-link">
-      &setupButton.label;
-    </label>
-    <vbox id="pairDevice">
-      <separator/>
-      <label id="noAccountPair" class="text-link">
-        &pairDevice.label;
-      </label>
-    </vbox>
-    <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"/>
-      </caption>
-
-      <hbox>
-        <button type="menu"
-                label="&manageAccount.label;"
-                accesskey="&manageAccount.accesskey;">
-          <menupopup>
-            <menuitem id="syncChangePassword" label="&changePassword2.label;"/>
-            <menuitem id="syncResetPassphrase" label="&myRecoveryKey.label;"/>
-            <menuseparator/>
-            <menuitem id="syncReset" label="&resetSync2.label;"/>
-          </menupopup>
-        </button>
-      </hbox>
-
-      <hbox>
-        <label id="syncAddDeviceLabel"
-               class="text-link">
-          &pairDevice.label;
-        </label>
-      </hbox>
-
-      <vbox>
-        <label>&syncMy.label;</label>
-        <richlistbox id="syncEnginesList"
-                     orient="vertical">
-          <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 control="syncComputerName">
-              &syncDeviceName.label;
-            </label>
-            <textbox id="syncComputerName"/>
-          </row>
-        </rows>
-      </grid>
-      <hbox>
-        <label id="unlinkDevice" class="text-link">
-          &unlinkDevice.label;
-        </label>
-      </hbox>
-    </groupbox>
-    <vbox id="tosPP-normal">
-      <label id="tosPP-normal-ToS" class="text-link">
-        &prefs.tosLink.label;
-      </label>
-      <label id="tosPP-normal-PP" class="text-link">
-        &prefs.ppLink.label;
-      </label>
-    </vbox>
-  </vbox>
-
-  <vbox id="needsUpdate" align="center" pack="center">
-    <hbox>
-      <label id="loginError"/>
-      <label id="loginErrorUpdatePass" class="text-link">
-        &updatePass.label;
-      </label>
-      <label id="loginErrorResetPass" class="text-link">
-        &resetPass.label;
-      </label>
-    </hbox>
-    <label id="loginErrorStartOver" class="text-link">
-      &unlinkDevice.label;
-    </label>
-  </vbox>
-
-  <!-- These panels are for the Firefox Accounts identity provider -->
-  <vbox id="noFxaAccount">
-    <hbox>
-      <vbox id="fxaContentWrapper">
-        <groupbox id="noFxaGroup">
-          <vbox>
-            <label id="noFxaCaption">&signedOut.caption;</label>
-            <description id="noFxaDescription" flex="1">&signedOut.description;</description>
-            <hbox class="fxaAccountBox">
-              <vbox>
-                <image class="fxaFirefoxLogo"/>
-              </vbox>
-              <vbox flex="1">
-                <label id="signedOutAccountBoxTitle">&signedOut.accountBox.title;</label>
-                <hbox class="fxaAccountBoxButtons">
-                  <button id="noFxaSignUp" label="&signedOut.accountBox.create;" accesskey="&signedOut.accountBox.create.accesskey;"></button>
-                  <button id="noFxaSignIn" label="&signedOut.accountBox.signin;" accesskey="&signedOut.accountBox.signin.accesskey;"></button>
-                </hbox>
-              </vbox>
-            </hbox>
-          </vbox>
-        </groupbox>
-      </vbox>
-      <vbox>
-        <image class="fxaSyncIllustration"/>
-      </vbox>
-    </hbox>
-    <label class="fxaMobilePromo">
-        &mobilePromo3.start;<!-- We put these comments to avoid inserting white spaces
-        --><label id="fxaMobilePromo-android"
-                  class="androidLink text-link"><!--
-        -->&mobilePromo3.androidLink;</label><!--
-        -->&mobilePromo3.iOSBefore;<!--
-        --><label id="fxaMobilePromo-ios"
-                  class="iOSLink text-link"><!--
-        -->&mobilePromo3.iOSLink;</label><!--
-        -->&mobilePromo3.end;
-    </label>
-  </vbox>
-
-  <vbox id="hasFxaAccount">
-    <hbox>
-      <vbox id="fxaContentWrapper">
-        <groupbox id="fxaGroup">
-          <caption><label>&syncBrand.fxAccount.label;</label></caption>
-          <deck id="fxaLoginStatus">
-
-            <!-- logged in and verified and all is good -->
-            <hbox id="fxaLoginVerified" class="fxaAccountBox">
-              <vbox align="center" pack="center">
-                <image id="fxaProfileImage" class="actionable"
-                    role="button"
-                    onclick="gSyncPane.openChangeProfileImage(event);" hidden="true"
-                    onkeypress="gSyncPane.openChangeProfileImage(event);"
-                    tooltiptext="&profilePicture.tooltip;"/>
-              </vbox>
-              <vbox flex="1" pack="center">
-                <label id="fxaDisplayName" hidden="true"/>
-                <label id="fxaEmailAddress1"/>
-                <hbox class="fxaAccountBoxButtons">
-                  <button id="fxaUnlinkButton" label="&disconnect.label;" accesskey="&disconnect.accesskey;"/>
-                  <html:a id="verifiedManage" target="_blank"
-                         accesskey="&verifiedManage.accesskey;"
-                         onkeypress="gSyncPane.openManageFirefoxAccount(event);"><!--
-                  -->&verifiedManage.label;</html:a>
-                </hbox>
-              </vbox>
-            </hbox>
-
-            <!-- logged in to an unverified account -->
-            <hbox id="fxaLoginUnverified" class="fxaAccountBox">
-              <vbox>
-                <image id="fxaProfileImage"/>
-              </vbox>
-              <vbox flex="1">
-                <hbox>
-                  <vbox><image id="fxaLoginRejectedWarning"/></vbox>
-                  <description flex="1">
-                    &signedInUnverified.beforename.label;
-                    <label id="fxaEmailAddress2"/>
-                    &signedInUnverified.aftername.label;
-                  </description>
-                </hbox>
-                <hbox class="fxaAccountBoxButtons">
-                  <button id="verifyFxaAccount" accesskey="&verify.accesskey;">&verify.label;</button>
-                  <button id="unverifiedUnlinkFxaAccount" accesskey="&forget.accesskey;">&forget.label;</button>
-                </hbox>
-              </vbox>
-            </hbox>
-
-            <!-- logged in locally but server rejected credentials -->
-            <hbox id="fxaLoginRejected" class="fxaAccountBox">
-              <vbox>
-                <image id="fxaProfileImage"/>
-              </vbox>
-              <vbox flex="1">
-                <hbox>
-                  <vbox><image id="fxaLoginRejectedWarning"/></vbox>
-                  <description flex="1">
-                    &signedInLoginFailure.beforename.label;
-                    <label id="fxaEmailAddress3"/>
-                    &signedInLoginFailure.aftername.label;
-                  </description>
-                </hbox>
-                <hbox class="fxaAccountBoxButtons">
-                  <button id="rejectReSignIn" accessky="&signIn.accesskey;">&signIn.label;</button>
-                  <button id="rejectUnlinkFxaAccount" accesskey="&forget.accesskey;">&forget.label;</button>
-                </hbox>
-              </vbox>
-            </hbox>
-          </deck>
-        </groupbox>
-        <groupbox id="syncOptions">
-          <caption><label>&signedIn.engines.label;</label></caption>
-          <hbox id="fxaSyncEngines">
-            <vbox align="start" flex="1">
-              <checkbox label="&engine.tabs.label;"
-                        accesskey="&engine.tabs.accesskey;"
-                        preference="engine.tabs"/>
-              <checkbox label="&engine.bookmarks.label;"
-                        accesskey="&engine.bookmarks.accesskey;"
-                        preference="engine.bookmarks"/>
-              <checkbox label="&engine.passwords.label;"
-                        accesskey="&engine.passwords.accesskey;"
-                        preference="engine.passwords"/>
-            </vbox>
-            <vbox align="start" flex="1">
-              <checkbox label="&engine.history.label;"
-                        accesskey="&engine.history.accesskey;"
-                        preference="engine.history"/>
-              <checkbox label="&engine.addons.label;"
-                        accesskey="&engine.addons.accesskey;"
-                        preference="engine.addons"/>
-              <checkbox label="&engine.prefs.label;"
-                        accesskey="&engine.prefs.accesskey;"
-                        preference="engine.prefs"/>
-            </vbox>
-            <spacer/>
-          </hbox>
-        </groupbox>
-      </vbox>
-      <vbox>
-        <image class="fxaSyncIllustration"/>
-      </vbox>
-    </hbox>
-    <groupbox>
-      <caption>
-        <label control="fxaSyncComputerName">
-          &fxaSyncDeviceName.label;
-        </label>
-      </caption>
-      <hbox id="fxaDeviceName">
-        <textbox id="fxaSyncComputerName" disabled="true"/>
-        <hbox>
-          <button id="fxaChangeDeviceName"
-                  label="&changeSyncDeviceName.label;"
-                  accesskey="&changeSyncDeviceName.accesskey;"/>
-          <button id="fxaCancelChangeDeviceName"
-                  label="&cancelChangeSyncDeviceName.label;"
-                  accesskey="&cancelChangeSyncDeviceName.accesskey;"
-                  hidden="true"/>
-          <button id="fxaSaveChangeDeviceName"
-                  label="&saveChangeSyncDeviceName.label;"
-                  accesskey="&saveChangeSyncDeviceName.accesskey;"
-                  hidden="true"/>
-        </hbox>
-      </hbox>
-    </groupbox>
-    <label class="fxaMobilePromo">
-        &mobilePromo3.start;<!-- We put these comments to avoid inserting white spaces
-        --><label class="androidLink text-link" id="fxaMobilePromo-android-hasFxaAccount"><!--
-        -->&mobilePromo3.androidLink;</label><!--
-        -->&mobilePromo3.iOSBefore;<!--
-        --><label class="iOSLink text-link" id="fxaMobilePromo-ios-hasFxaAccount"><!--
-        -->&mobilePromo3.iOSLink;</label><!--
-        -->&mobilePromo3.end;
-    </label>
-    <vbox id="tosPP-small" align="start">
-      <label id="tosPP-small-ToS" class="text-link">
-        &prefs.tosLink.label;
-      </label>
-      <label id="tosPP-small-PP" class="text-link">
-        &fxaPrivacyNotice.link.label;
-      </label>
-    </vbox>
-  </vbox>
-</deck>
diff --git a/browser/components/preferences/jar.mn b/browser/components/preferences/jar.mn
deleted file mode 100644
index c0d34da7f..000000000
--- a/browser/components/preferences/jar.mn
+++ /dev/null
@@ -1,31 +0,0 @@
-# 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/.
-
-browser.jar:
-    content/browser/preferences/applicationManager.xul
-    content/browser/preferences/applicationManager.js
-    content/browser/preferences/blocklists.xul
-    content/browser/preferences/blocklists.js
-*   content/browser/preferences/colors.xul
-*   content/browser/preferences/cookies.xul
-    content/browser/preferences/cookies.js
-*   content/browser/preferences/connection.xul
-    content/browser/preferences/connection.js
-    content/browser/preferences/donottrack.xul
-*   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/permissions.xul
-    content/browser/preferences/containers.xul
-    content/browser/preferences/containers.js
-    content/browser/preferences/permissions.js
-    content/browser/preferences/sanitize.xul
-    content/browser/preferences/sanitize.js
-    content/browser/preferences/selectBookmark.xul
-    content/browser/preferences/selectBookmark.js
-    content/browser/preferences/translation.xul
-    content/browser/preferences/translation.js
diff --git a/browser/components/preferences/languages.js b/browser/components/preferences/languages.js
deleted file mode 100644
index 16ca257f7..000000000
--- a/browser/components/preferences/languages.js
+++ /dev/null
@@ -1,312 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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();
-  },
-
-  // Ugly hack used to trigger extra reflow in order to work around XUL bug 1194844;
-  // see bug 1194346.
-  forceReflow: function ()
-  {
-    this._activeLanguages.style.fontKerning = "none";
-    setTimeout("gLanguagesDialog._activeLanguages.style.removeProperty('font-kerning')", 0);
-  },
-
-  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/browser/components/preferences/languages.xul b/browser/components/preferences/languages.xul
deleted file mode 100644
index 7c877a456..000000000
--- a/browser/components/preferences/languages.xul
+++ /dev/null
@@ -1,101 +0,0 @@
-<?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;"
-# hack around XUL bug 1194844 by triggering extra reflow (see bug 1194346):
-            onfocus="gLanguagesDialog.forceReflow()"
-            onresize="gLanguagesDialog.forceReflow()">
-
-  <script type="application/javascript" src="chrome://browser/content/utilityOverlay.js"/>
-
-  <prefpane id="LanguagesDialogPane"
-            class="largeDialogContainer"
-            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.description;</description>
-    <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/browser/components/preferences/moz.build b/browser/components/preferences/moz.build
deleted file mode 100644
index adee51e3b..000000000
--- a/browser/components/preferences/moz.build
+++ /dev/null
@@ -1,15 +0,0 @@
-# -*- Mode: python; 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/.
-
-DIRS += ['in-content']
-
-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']
diff --git a/browser/components/preferences/permissions.js b/browser/components/preferences/permissions.js
deleted file mode 100644
index 4944f79a4..000000000
--- a/browser/components/preferences/permissions.js
+++ /dev/null
@@ -1,462 +0,0 @@
-/* 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/. */
-
-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.createCodebasePrincipal(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.createCodebasePrincipal(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;
-
-    if (aParams.hideStatusColumn) {
-      document.getElementById("statusCol").hidden = true;
-    }
-
-    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) {
-      this.onPermissionDeleted();
-    } else if (AppConstants.platform == "macosx" &&
-               aEvent.keyCode == KeyEvent.DOM_VK_BACK_SPACE) {
-      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 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/browser/components/preferences/permissions.xul b/browser/components/preferences/permissions.xul
deleted file mode 100644
index 7a7040864..000000000
--- a/browser/components/preferences/permissions.xul
+++ /dev/null
@@ -1,83 +0,0 @@
-<?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/" 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 largeDialogContainer" 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>
-  </vbox>
-</window>
diff --git a/browser/components/preferences/sanitize.js b/browser/components/preferences/sanitize.js
deleted file mode 100644
index 3504bffd6..000000000
--- a/browser/components/preferences/sanitize.js
+++ /dev/null
@@ -1,21 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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({
-  init: function() {
-    let customWidthElements = document.getElementsByAttribute("dialogWidth", "*");
-    let isInSubdialog = document.documentElement.hasAttribute("subdialog");
-    for (let element of customWidthElements) {
-      element.style.width = element.getAttribute(isInSubdialog ? "subdialogWidth" : "dialogWidth");
-    }
-    this.onClearHistoryChanged();
-  },
-
-  onClearHistoryChanged: function () {
-    let downloadsPref = document.getElementById("privacy.clearOnShutdown.downloads");
-    let historyPref = document.getElementById("privacy.clearOnShutdown.history");
-    downloadsPref.value = historyPref.value;
-  }
-});
diff --git a/browser/components/preferences/sanitize.xul b/browser/components/preferences/sanitize.xul
deleted file mode 100644
index ca020ba44..000000000
--- a/browser/components/preferences/sanitize.xul
+++ /dev/null
@@ -1,101 +0,0 @@
-<?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()"
-            dialogWidth="&sanitizePrefs2.modal.width;"
-            subdialogWidth="&sanitizePrefs2.inContent.dialog.width;"
-            title="&sanitizePrefs2.title;"
-            onload="gSanitizeDialog.init();">
-
-  <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.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"/>
-    </preferences>
-
-    <description>&clearDataSettings2.label;</description>
-
-    <groupbox orient="horizontal">
-      <caption label="&historySection.label;"/>
-      <grid flex="1">
-        <columns>
-          <column dialogWidth="&sanitizePrefs2.column.width;"
-                  subdialogWidth="&sanitizePrefs2.inContent.column.width;"/>
-          <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 dialogWidth="&sanitizePrefs2.column.width;"
-                  subdialogWidth="&sanitizePrefs2.inContent.column.width;"/>
-          <column flex="1"/>
-        </columns>
-        <rows>
-          <row>
-            <checkbox label="&itemSitePreferences.label;"
-                      accesskey="&itemSitePreferences.accesskey;"
-                      preference="privacy.clearOnShutdown.siteSettings"/>
-            <checkbox label="&itemOfflineApps.label;"
-                      accesskey="&itemOfflineApps.accesskey;"
-                      preference="privacy.clearOnShutdown.offlineApps"/>
-          </row>
-        </rows>
-      </grid>
-    </groupbox>
-  </prefpane>
-</prefwindow>
diff --git a/browser/components/preferences/selectBookmark.js b/browser/components/preferences/selectBookmark.js
deleted file mode 100644
index ae9b6b1c8..000000000
--- a/browser/components/preferences/selectBookmark.js
+++ /dev/null
@@ -1,83 +0,0 @@
-//* -*- indent-tabs-mode: nil; js-indent-level: 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/browser/components/preferences/selectBookmark.xul b/browser/components/preferences/selectBookmark.xul
deleted file mode 100644
index 5547534b6..000000000
--- a/browser/components/preferences/selectBookmark.xul
+++ /dev/null
@@ -1,44 +0,0 @@
-<?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/browser/components/preferences/translation.js b/browser/components/preferences/translation.js
deleted file mode 100644
index cd570db0e..000000000
--- a/browser/components/preferences/translation.js
+++ /dev/null
@@ -1,255 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-"use strict";
-
-var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-
-XPCOMUtils.defineLazyGetter(this, "gLangBundle", () =>
-  Services.strings.createBundle("chrome://global/locale/languageNames.properties"));
-
-const kPermissionType = "translate";
-const kLanguagesPref = "browser.translation.neverForLanguages";
-
-function Tree(aId, aData)
-{
-  this._data = aData;
-  this._tree = document.getElementById(aId);
-  this._tree.view = this;
-}
-
-Tree.prototype = {
-  get boxObject() {
-    return this._tree.treeBoxObject;
-  },
-  get isEmpty() {
-    return !this._data.length;
-  },
-  get hasSelection() {
-    return this.selection.count > 0;
-  },
-  getSelectedItems: function() {
-    let result = [];
-
-    let rc = this.selection.getRangeCount();
-    for (let i = 0; i < rc; ++i) {
-      let min = {}, max = {};
-      this.selection.getRangeAt(i, min, max);
-      for (let j = min.value; j <= max.value; ++j)
-        result.push(this._data[j]);
-    }
-
-    return result;
-  },
-
-  // nsITreeView implementation
-  get rowCount() {
-    return this._data.length;
-  },
-  getCellText: function (aRow, aColumn) {
-    return this._data[aRow];
-  },
-  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) {
-    return "";
-  },
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsITreeView])
-};
-
-function Lang(aCode)
-{
-  this.langCode = aCode;
-  this._label = gLangBundle.GetStringFromName(aCode);
-}
-
-Lang.prototype = {
-  toString: function() {
-    return this._label;
-  }
-}
-
-var gTranslationExceptions = {
-  onLoad: function() {
-    if (this._siteTree) {
-      // Re-using an open dialog, clear the old observers.
-      this.uninit();
-    }
-
-    // Load site permissions into an array.
-    this._sites = [];
-    let enumerator = Services.perms.enumerator;
-    while (enumerator.hasMoreElements()) {
-      let perm = enumerator.getNext().QueryInterface(Ci.nsIPermission);
-
-      if (perm.type == kPermissionType &&
-          perm.capability == Services.perms.DENY_ACTION) {
-        this._sites.push(perm.principal.origin);
-      }
-    }
-    Services.obs.addObserver(this, "perm-changed", false);
-    this._sites.sort();
-
-    this._siteTree = new Tree("sitesTree", this._sites);
-    this.onSiteSelected();
-
-    this._langs = this.getLanguageExceptions();
-    Services.prefs.addObserver(kLanguagesPref, this, false);
-    this._langTree = new Tree("languagesTree", this._langs);
-    this.onLanguageSelected();
-  },
-
-  // Get the list of languages we don't translate as an array.
-  getLanguageExceptions: function() {
-    let langs = Services.prefs.getCharPref(kLanguagesPref);
-    if (!langs)
-      return [];
-
-    let result = langs.split(",").map(code => new Lang(code));
-    result.sort();
-
-    return result;
-  },
-
-  observe: function(aSubject, aTopic, aData) {
-    if (aTopic == "perm-changed") {
-      if (aData == "cleared") {
-        if (!this._sites.length)
-          return;
-        let removed = this._sites.splice(0, this._sites.length);
-        this._siteTree.boxObject.rowCountChanged(0, - removed.length);
-      }
-      else {
-        let perm = aSubject.QueryInterface(Ci.nsIPermission);
-        if (perm.type != kPermissionType)
-          return;
-
-        if (aData == "added") {
-          if (perm.capability != Services.perms.DENY_ACTION)
-            return;
-          this._sites.push(perm.principal.origin);
-          this._sites.sort();
-          let boxObject = this._siteTree.boxObject;
-          boxObject.rowCountChanged(0, 1);
-          boxObject.invalidate();
-        }
-        else if (aData == "deleted") {
-          let index = this._sites.indexOf(perm.principal.origin);
-          if (index == -1)
-            return;
-          this._sites.splice(index, 1);
-          this._siteTree.boxObject.rowCountChanged(index, -1);
-          this.onSiteSelected();
-          return;
-        }
-      }
-      this.onSiteSelected();
-    }
-    else if (aTopic == "nsPref:changed") {
-      this._langs = this.getLanguageExceptions();
-      let change = this._langs.length - this._langTree.rowCount;
-      this._langTree._data = this._langs;
-      let boxObject = this._langTree.boxObject;
-      if (change)
-        boxObject.rowCountChanged(0, change);
-      boxObject.invalidate();
-      this.onLanguageSelected();
-    }
-  },
-
-  _handleButtonDisabling: function(aTree, aIdPart) {
-    let empty = aTree.isEmpty;
-    document.getElementById("removeAll" + aIdPart + "s").disabled = empty;
-    document.getElementById("remove" + aIdPart).disabled =
-      empty || !aTree.hasSelection;
-  },
-
-  onLanguageSelected: function() {
-    this._handleButtonDisabling(this._langTree, "Language");
-  },
-
-  onSiteSelected: function() {
-    this._handleButtonDisabling(this._siteTree, "Site");
-  },
-
-  onLanguageDeleted: function() {
-    let langs = Services.prefs.getCharPref(kLanguagesPref);
-    if (!langs)
-      return;
-
-    let removed = this._langTree.getSelectedItems().map(l => l.langCode);
-
-    langs = langs.split(",").filter(l => removed.indexOf(l) == -1);
-    Services.prefs.setCharPref(kLanguagesPref, langs.join(","));
-  },
-
-  onAllLanguagesDeleted: function() {
-    Services.prefs.setCharPref(kLanguagesPref, "");
-  },
-
-  onSiteDeleted: function() {
-    let removedSites = this._siteTree.getSelectedItems();
-    for (let origin of removedSites) {
-      let principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
-      Services.perms.removeFromPrincipal(principal, kPermissionType);
-    }
-  },
-
-  onAllSitesDeleted: function() {
-    if (this._siteTree.isEmpty)
-      return;
-
-    let removedSites = this._sites.splice(0, this._sites.length);
-    this._siteTree.boxObject.rowCountChanged(0, -removedSites.length);
-
-    for (let origin of removedSites) {
-      let principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
-      Services.perms.removeFromPrincipal(principal, kPermissionType);
-    }
-
-    this.onSiteSelected();
-  },
-
-  onSiteKeyPress: function(aEvent) {
-    if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE)
-      this.onSiteDeleted();
-  },
-
-  onLanguageKeyPress: function(aEvent) {
-    if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE)
-      this.onLanguageDeleted();
-  },
-
-  onWindowKeyPress: function(aEvent) {
-    if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
-      window.close();
-  },
-
-  uninit: function() {
-    Services.obs.removeObserver(this, "perm-changed");
-    Services.prefs.removeObserver(kLanguagesPref, this);
-  }
-};
diff --git a/browser/components/preferences/translation.xul b/browser/components/preferences/translation.xul
deleted file mode 100644
index b5dfd1b9b..000000000
--- a/browser/components/preferences/translation.xul
+++ /dev/null
@@ -1,88 +0,0 @@
-<?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/" type="text/css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/preferences.css" type="text/css"?>
-
-<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/translation.dtd">
-
-<window id="TranslationDialog" class="windowDialog"
-        windowtype="Browser:TranslationExceptions"
-        title="&window.title;"
-        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-        style="width: &window.width;;"
-        onload="gTranslationExceptions.onLoad();"
-        onunload="gTranslationExceptions.uninit();"
-        persist="screenX screenY width height"
-        onkeypress="gTranslationExceptions.onWindowKeyPress(event);">
-
-  <script src="chrome://browser/content/preferences/translation.js"/>
-
-  <stringbundle id="bundlePreferences"
-                src="chrome://browser/locale/preferences/preferences.properties"/>
-
-  <keyset>
-    <key key="&windowClose.key;" modifiers="accel" oncommand="window.close();"/>
-  </keyset>
-
-  <vbox class="largeDialogContainer">
-    <vbox class="contentPane" flex="1">
-      <label id="languagesLabel" control="permissionsTree">&noTranslationForLanguages.label;</label>
-      <separator class="thin"/>
-      <tree id="languagesTree" flex="1" style="height: 12em;"
-            hidecolumnpicker="true"
-            onkeypress="gTranslationExceptions.onLanguageKeyPress(event)"
-            onselect="gTranslationExceptions.onLanguageSelected();">
-        <treecols>
-          <treecol id="languageCol" label="&treehead.languageName.label;" flex="1"/>
-        </treecols>
-        <treechildren/>
-      </tree>
-    </vbox>
-    <hbox align="end">
-      <hbox class="actionButtons" flex="1">
-        <button id="removeLanguage" disabled="true"
-                accesskey="&removeLanguage.accesskey;"
-                icon="remove" label="&removeLanguage.label;"
-                oncommand="gTranslationExceptions.onLanguageDeleted();"/>
-        <button id="removeAllLanguages"
-                icon="clear" label="&removeAllLanguages.label;"
-                accesskey="&removeAllLanguages.accesskey;"
-                oncommand="gTranslationExceptions.onAllLanguagesDeleted();"/>
-        <spacer flex="1"/>
-      </hbox>
-    </hbox>
-    <separator/>
-    <vbox class="contentPane" flex="1">
-      <label id="languagesLabel" control="permissionsTree">&noTranslationForSites.label;</label>
-      <separator class="thin"/>
-      <tree id="sitesTree" flex="1" style="height: 12em;"
-            hidecolumnpicker="true"
-            onkeypress="gTranslationExceptions.onSiteKeyPress(event)"
-            onselect="gTranslationExceptions.onSiteSelected();">
-        <treecols>
-          <treecol id="siteCol" label="&treehead.siteName.label;" flex="1"/>
-        </treecols>
-        <treechildren/>
-      </tree>
-    </vbox>
-  </vbox>
-  <hbox align="end">
-    <hbox class="actionButtons" flex="1">
-      <button id="removeSite" disabled="true"
-              accesskey="&removeSite.accesskey;"
-              icon="remove" label="&removeSite.label;"
-              oncommand="gTranslationExceptions.onSiteDeleted();"/>
-      <button id="removeAllSites"
-              icon="clear" label="&removeAllSites.label;"
-              accesskey="&removeAllSites.accesskey;"
-              oncommand="gTranslationExceptions.onAllSitesDeleted();"/>
-      <spacer flex="1"/>
-      <button oncommand="close();" icon="close"
-              label="&button.close.label;" accesskey="&button.close.accesskey;"/>
-    </hbox>
-  </hbox>
-</window>