diff --git a/browser/base/content/browser-kde.xul b/browser/base/content/browser-kde.xul

new file mode 100644

--- /dev/null

+++ b/browser/base/content/browser-kde.xul

@@ -0,0 +1,1216 @@

+#filter substitution

+<?xml version="1.0"?>

+# -*- Mode: HTML -*-

+#

+# 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/browser.css" type="text/css"?>

+<?xml-stylesheet href="chrome://browser/content/places/places.css" type="text/css"?>

+<?xml-stylesheet href="chrome://browser/skin/devtools/common.css" type="text/css"?>

+<?xml-stylesheet href="chrome://browser/skin/" type="text/css"?>

+

+<?xul-overlay href="chrome://global/content/editMenuOverlay.xul"?>

+<?xul-overlay href="chrome://browser/content/baseMenuOverlay.xul"?>

+<?xul-overlay href="chrome://browser/content/places/placesOverlay.xul"?>

+

+# All DTD information is stored in a separate file so that it can be shared by

+# hiddenWindow.xul.

+#include browser-doctype.inc

+

+<window id="main-window"

+        xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

+        xmlns:svg="http://www.w3.org/2000/svg"

+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

+        onload="gBrowserInit.onLoad()" onunload="gBrowserInit.onUnload()" onclose="return WindowIsClosing();"

+        title="&mainWindow.title;@PRE_RELEASE_SUFFIX@"

+        title_normal="&mainWindow.title;@PRE_RELEASE_SUFFIX@"

+#ifdef XP_MACOSX

+        title_privatebrowsing="&mainWindow.title;@PRE_RELEASE_SUFFIX@&mainWindow.titlemodifiermenuseparator;&mainWindow.titlePrivateBrowsingSuffix;"

+        titledefault="&mainWindow.title;@PRE_RELEASE_SUFFIX@"

+        titlemodifier=""

+        titlemodifier_normal=""

+        titlemodifier_privatebrowsing="&mainWindow.titlePrivateBrowsingSuffix;"

+#else

+        title_privatebrowsing="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@ &mainWindow.titlePrivateBrowsingSuffix;"

+        titlemodifier="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@"

+        titlemodifier_normal="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@"

+        titlemodifier_privatebrowsing="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@ &mainWindow.titlePrivateBrowsingSuffix;"

+#endif

+        titlemenuseparator="&mainWindow.titlemodifiermenuseparator;"

+        lightweightthemes="true"

+        lightweightthemesfooter="browser-bottombox"

+        windowtype="navigator:browser"

+        macanimationtype="document"

+        screenX="4" screenY="4"

+        fullscreenbutton="true"

+        persist="screenX screenY width height sizemode">

+

+# All JS files which are not content (only) dependent that browser.xul

+# wishes to include *must* go into the global-scripts.inc file

+# so that they can be shared by macBrowserOverlay.xul.

+#include global-scripts.inc

+<script type="application/javascript" src="chrome://browser/content/nsContextMenu.js"/>

+

+<script type="application/javascript" src="chrome://global/content/contentAreaUtils.js"/>

+

+<script type="application/javascript" src="chrome://browser/content/places/editBookmarkOverlay.js"/>

+

+# All sets except for popupsets (commands, keys, stringbundles and broadcasters) *must* go into the

+# browser-sets.inc file for sharing with hiddenWindow.xul.

+#define FULL_BROWSER_WINDOW

+#include browser-sets.inc

+#undef FULL_BROWSER_WINDOW

+

+  <popupset id="mainPopupSet">

+    <menupopup id="tabContextMenu"

+               onpopupshowing="if (event.target == this) TabContextMenu.updateContextMenu(this);"

+               onpopuphidden="if (event.target == this) TabContextMenu.contextTab = null;">

+      <menuitem id="context_reloadTab" label="&reloadTab.label;" accesskey="&reloadTab.accesskey;"

+                oncommand="gBrowser.reloadTab(TabContextMenu.contextTab);"/>

+      <menuseparator/>

+      <menuitem id="context_pinTab" label="&pinTab.label;"

+                accesskey="&pinTab.accesskey;"

+                oncommand="gBrowser.pinTab(TabContextMenu.contextTab);"/>

+      <menuitem id="context_unpinTab" label="&unpinTab.label;" hidden="true"

+                accesskey="&unpinTab.accesskey;"

+                oncommand="gBrowser.unpinTab(TabContextMenu.contextTab);"/>

+      <menu id="context_tabViewMenu" label="&moveToGroup.label;"

+            accesskey="&moveToGroup.accesskey;">

+        <menupopup id="context_tabViewMenuPopup"

+                   onpopupshowing="if (event.target == this) TabView.moveToGroupPopupShowing(event);">

+          <menuseparator id="context_tabViewNamedGroups" hidden="true"/>

+          <menuitem id="context_tabViewNewGroup" label="&moveToNewGroup.label;"

+                    oncommand="TabView.moveTabTo(TabContextMenu.contextTab, null);"/>

+        </menupopup>

+      </menu>

+      <menuitem id="context_openTabInWindow" label="&moveToNewWindow.label;"

+                accesskey="&moveToNewWindow.accesskey;"

+                tbattr="tabbrowser-multiple"

+                oncommand="gBrowser.replaceTabWithWindow(TabContextMenu.contextTab);"/>

+      <menuseparator/>

+      <menuitem id="context_reloadAllTabs" label="&reloadAllTabs.label;" accesskey="&reloadAllTabs.accesskey;"

+                tbattr="tabbrowser-multiple-visible"

+                oncommand="gBrowser.reloadAllTabs();"/>

+      <menuitem id="context_bookmarkAllTabs"

+                label="&bookmarkAllTabs.label;"

+                accesskey="&bookmarkAllTabs.accesskey;"

+                command="Browser:BookmarkAllTabs"/>

+      <menuitem id="context_closeOtherTabs" label="&closeOtherTabs.label;" accesskey="&closeOtherTabs.accesskey;"

+                oncommand="gBrowser.removeAllTabsBut(TabContextMenu.contextTab);"/>

+      <menuseparator/>

+      <menuitem id="context_undoCloseTab"

+                label="&undoCloseTab.label;"

+                accesskey="&undoCloseTab.accesskey;"

+                observes="History:UndoCloseTab"/>

+      <menuitem id="context_closeTab" label="&closeTab.label;" accesskey="&closeTab.accesskey;"

+                oncommand="gBrowser.removeTab(TabContextMenu.contextTab, { animate: true });"/>

+    </menupopup>

+

+    <!-- bug 415444/582485: event.stopPropagation is here for the cloned version

+         of this menupopup -->

+    <menupopup id="backForwardMenu"

+               onpopupshowing="return FillHistoryMenu(event.target);"

+               oncommand="gotoHistoryIndex(event); event.stopPropagation();"

+               onclick="checkForMiddleClick(this, event);"/>

+    <tooltip id="aHTMLTooltip" onpopupshowing="return FillInHTMLTooltip(document.tooltipNode);"/>

+

+    <!-- for search and content formfill/pw manager -->

+    <panel type="autocomplete" id="PopupAutoComplete" noautofocus="true" hidden="true"/>

+

+    <!-- for url bar autocomplete -->

+    <panel type="autocomplete-richlistbox" id="PopupAutoCompleteRichResult" noautofocus="true" hidden="true"/>

+

+    <!-- for invalid form error message -->

+    <panel id="invalid-form-popup" type="arrow" orient="vertical" noautofocus="true" hidden="true" level="parent">

+      <description/>

+    </panel>

+

+    <panel id="editBookmarkPanel"

+           type="arrow"

+           footertype="promobox"

+           orient="vertical"

+           ignorekeys="true"

+           consumeoutsideclicks="true"

+           hidden="true"

+           onpopupshown="StarUI.panelShown(event);"

+           aria-labelledby="editBookmarkPanelTitle">

+      <row id="editBookmarkPanelHeader" align="center" hidden="true">

+        <vbox align="center">

+          <image id="editBookmarkPanelStarIcon"/>

+        </vbox>

+        <vbox>

+          <label id="editBookmarkPanelTitle"/>

+          <description id="editBookmarkPanelDescription"/>

+          <hbox>

+            <button id="editBookmarkPanelRemoveButton"

+                    class="editBookmarkPanelHeaderButton"

+                    oncommand="StarUI.removeBookmarkButtonCommand();"

+                    accesskey="&editBookmark.removeBookmark.accessKey;"/>

+          </hbox>

+        </vbox>

+      </row>

+      <vbox id="editBookmarkPanelContent" flex="1" hidden="true"/>

+      <hbox id="editBookmarkPanelBottomButtons" pack="end">

+#ifdef XP_UNIX

+        <button id="editBookmarkPanelDoneButton"

+                class="editBookmarkPanelBottomButton"

+                label="&editBookmark.done.label;"

+                default="true"

+                oncommand="StarUI.panel.hidePopup();"/>

+        <button id="editBookmarkPanelDeleteButton"

+                class="editBookmarkPanelBottomButton"

+                label="&editBookmark.cancel.label;"

+                oncommand="StarUI.cancelButtonOnCommand();"/>

+#else

+        <button id="editBookmarkPanelDeleteButton"

+                class="editBookmarkPanelBottomButton"

+                label="&editBookmark.cancel.label;"

+                oncommand="StarUI.cancelButtonOnCommand();"/>

+        <button id="editBookmarkPanelDoneButton"

+                class="editBookmarkPanelBottomButton"

+                label="&editBookmark.done.label;"

+                default="true"

+                oncommand="StarUI.panel.hidePopup();"/>

+#endif

+      </hbox>

+    </panel>

+

+    <panel id="socialActivatedNotification"

+           type="arrow"

+           hidden="true"

+           consumeoutsideclicks="true"

+           align="start"

+           role="alert">

+      <hbox flex="1">

+        <image id="social-activation-icon" class="popup-notification-icon"/>

+        <vbox flex="1">

+          <description id="social-activation-message" class="popup-notification-description"/>

+          <spacer flex="1"/>

+          <hbox pack="end" align="center" class="popup-notification-button-container">

+#ifndef XP_UNIX

+        <button id="social-undoactivation-button"

+                label="&social.activated.undobutton.label;"

+                accesskey="&social.activated.undobutton.accesskey;"

+                onclick="SocialUI.undoActivation(this);"/>

+        <button default="true"

+                autofocus="autofocus"

+                label="&social.ok.label;"

+                accesskey="&social.ok.accesskey;"

+                oncommand="SocialUI.notificationPanel.hidePopup();"/>

+#else

+        <button default="true"

+                autofocus="autofocus"

+                label="&social.ok.label;"

+                accesskey="&social.ok.accesskey;"

+                oncommand="SocialUI.notificationPanel.hidePopup();"/>

+        <button id="social-undoactivation-button"

+                label="&social.activated.undobutton.label;"

+                accesskey="&social.activated.undobutton.accesskey;"

+                onclick="SocialUI.undoActivation(this);"/>

+#endif

+          </hbox>

+        </vbox>

+      </hbox>

+    </panel>

+

+    <panel id="unsharePopup"

+           type="arrow"

+           orient="vertical"

+           ignorekeys="true"

+           hidden="true"

+           onpopupshown="SocialShareButton.panelShown(event);"

+           consumeoutsideclicks="true"

+           level="top">

+      <!-- Note that 'label', 'accesskey', 'value' and 'aria-label' attributes

+           for many of these elements are supplied by the provider and filled

+           in at runtime

+      -->

+      <row id="unsharePopupHeader" align="center">

+        <vbox align="center">

+          <image id="socialUserPortrait" onclick="SocialUI.showProfile();"/>

+        </vbox>

+        <vbox id="unsharePopupText">

+          <button id="socialUserDisplayName" pack="start"

+                  oncommand="SocialUI.showProfile();"/>

+          <spacer flex="1"/>

+          <label id="socialUserRecommendedText"/>

+        </vbox>

+      </row>

+      <hbox id="unsharePopupBottomButtons" pack="end">

+#ifndef XP_UNIX

+        <button id="unsharePopupStopSharingButton"

+                class="unsharePopupBottomButton"

+                command="Social:UnsharePage"/>

+        <button id="unsharePopupContinueSharingButton"

+                class="unsharePopupBottomButton"

+                default="true"

+                autofocus="autofocus"

+                oncommand="SocialShareButton.dismissUnsharePopup();"/>

+#else

+        <button id="unsharePopupContinueSharingButton"

+                class="unsharePopupBottomButton"

+                default="true"

+                autofocus="autofocus"

+                oncommand="SocialShareButton.dismissUnsharePopup();"/>

+        <button id="unsharePopupStopSharingButton"

+                class="unsharePopupBottomButton"

+                command="Social:UnsharePage"/>

+#endif

+      </hbox>

+    </panel>

+

+    <panel id="social-notification-panel"

+           class="social-panel"

+           type="arrow"

+           hidden="true"

+           noautofocus="true"/>

+    <panel id="social-flyout-panel"

+           class="social-panel"

+           onpopupshown="SocialFlyout.onShown()"

+           onpopuphidden="SocialFlyout.onHidden()"

+           side="right"

+           type="arrow"

+           hidden="true"

+           rolluponmousewheel="true"

+           consumeoutsideclicks="false"

+           noautofocus="true"

+           position="topcenter topright"/>

+

+    <menupopup id="toolbar-context-menu"

+               onpopupshowing="onViewToolbarsPopupShowing(event);">

+      <menuseparator/>

+      <menuitem command="cmd_ToggleTabsOnTop"

+                type="checkbox"

+                label="&viewTabsOnTop.label;"

+                accesskey="&viewTabsOnTop.accesskey;"/>

+      <menuitem command="cmd_CustomizeToolbars"

+                label="&viewCustomizeToolbar.label;"

+                accesskey="&viewCustomizeToolbar.accesskey;"/>

+    </menupopup>

+

+    <menupopup id="blockedPopupOptions"

+               onpopupshowing="gPopupBlockerObserver.fillPopupList(event);"

+               onpopuphiding="gPopupBlockerObserver.onPopupHiding(event);">

+      <menuitem observes="blockedPopupAllowSite"/>

+      <menuitem observes="blockedPopupEditSettings"/>

+      <menuitem observes="blockedPopupDontShowMessage"/>

+      <menuseparator observes="blockedPopupsSeparator"/>

+    </menupopup>

+

+    <menupopup id="autohide-context"

+           onpopupshowing="FullScreen.getAutohide(this.firstChild);">

+      <menuitem type="checkbox" label="&fullScreenAutohide.label;"

+                accesskey="&fullScreenAutohide.accesskey;"

+                oncommand="FullScreen.setAutohide();"/>

+      <menuseparator/>

+      <menuitem label="&fullScreenExit.label;"

+                accesskey="&fullScreenExit.accesskey;"

+                oncommand="BrowserFullScreen();"/>

+    </menupopup>

+

+    <menupopup id="contentAreaContextMenu" pagemenu="start"

+               onpopupshowing="if (event.target != this)

+                                 return true;

+                               gContextMenu = new nsContextMenu(this, event.shiftKey);

+                               if (gContextMenu.shouldDisplay)

+                                 updateEditUIVisibility();

+                               return gContextMenu.shouldDisplay;"

+               onpopuphiding="if (event.target != this)

+                                return;

+                              gContextMenu.hiding();

+                              gContextMenu = null;

+                              updateEditUIVisibility();">

+#include browser-context.inc

+    </menupopup>

+

+    <menupopup id="placesContext"/>

+

+    <panel id="notification-popup"

+           type="arrow"

+           footertype="promobox"

+           position="after_start"

+           hidden="true"

+           orient="vertical"

+           role="alert"/>

+

+    <!-- Popup for site identity information -->

+    <panel id="identity-popup"

+           type="arrow"

+           hidden="true"

+           noautofocus="true"

+           consumeoutsideclicks="true"

+           onpopupshown="gIdentityHandler.onPopupShown(event);"

+           level="top">

+      <hbox id="identity-popup-container" align="top">

+        <image id="identity-popup-icon"/>

+        <vbox id="identity-popup-content-box">

+          <label id="identity-popup-connectedToLabel"

+                 class="identity-popup-label"

+                 value="&identity.connectedTo;"/>

+          <label id="identity-popup-connectedToLabel2"

+                 class="identity-popup-label"

+                 value="&identity.unverifiedsite2;"/>

+          <description id="identity-popup-content-host"

+                       class="identity-popup-description"/>

+          <label id="identity-popup-runByLabel"

+                 class="identity-popup-label"

+                 value="&identity.runBy;"/>

+          <description id="identity-popup-content-owner"

+                       class="identity-popup-description"/>

+          <description id="identity-popup-content-supplemental"

+                       class="identity-popup-description"/>

+          <description id="identity-popup-content-verifier"

+                       class="identity-popup-description"/>

+          <hbox id="identity-popup-encryption" flex="1">

+            <vbox>

+              <image id="identity-popup-encryption-icon"/>

+            </vbox>

+            <description id="identity-popup-encryption-label" flex="1"

+                         class="identity-popup-description"/>

+          </hbox>

+          <!-- Footer button to open security page info -->

+          <hbox id="identity-popup-button-container" pack="end">

+            <button id="identity-popup-more-info-button"

+                    label="&identity.moreInfoLinkText;"

+                    onblur="gIdentityHandler.hideIdentityPopup();"

+                    oncommand="gIdentityHandler.handleMoreInfoClick(event);"/>

+          </hbox>

+        </vbox>

+      </hbox>

+    </panel>

+

+    <panel id="ctrlTab-panel" class="KUI-panel" hidden="true" norestorefocus="true" level="top">

+      <hbox>

+        <button class="ctrlTab-preview" flex="1"/>

+        <button class="ctrlTab-preview" flex="1"/>

+        <button class="ctrlTab-preview" flex="1"/>

+        <button class="ctrlTab-preview" flex="1"/>

+        <button class="ctrlTab-preview" flex="1"/>

+        <button class="ctrlTab-preview" flex="1"/>

+      </hbox>

+      <hbox pack="center">

+        <button id="ctrlTab-showAll" class="ctrlTab-preview" noicon="true"/>

+      </hbox>

+    </panel>

+

+    <!-- Bookmarks and history tooltip -->

+    <tooltip id="bhTooltip"/>

+

+    <panel id="customizeToolbarSheetPopup"

+           noautohide="true"

+           sheetstyle="&dialog.dimensions;"/>

+

+    <tooltip id="tabbrowser-tab-tooltip" onpopupshowing="gBrowser.createTooltip(event);"/>

+

+    <tooltip id="back-button-tooltip">

+      <label class="tooltip-label" value="&backButton.tooltip;"/>

+#ifdef XP_MACOSX

+      <label class="tooltip-label" value="&backForwardButtonMenuMac.tooltip;"/>

+#else

+      <label class="tooltip-label" value="&backForwardButtonMenu.tooltip;"/>

+#endif

+    </tooltip>

+

+    <tooltip id="forward-button-tooltip">

+      <label class="tooltip-label" value="&forwardButton.tooltip;"/>

+#ifdef XP_MACOSX

+      <label class="tooltip-label" value="&backForwardButtonMenuMac.tooltip;"/>

+#else

+      <label class="tooltip-label" value="&backForwardButtonMenu.tooltip;"/>

+#endif

+    </tooltip>

+

+    <popupnotification id="webRTC-shareDevices-notification" hidden="true">

+      <popupnotificationcontent id="webRTC-selectCamera" orient="vertical">

+        <separator class="thin"/>

+        <label value="&getUserMedia.selectCamera.label;"

+               accesskey="&getUserMedia.selectCamera.accesskey;"

+               control="webRTC-selectCamera-menulist"/>

+        <menulist id="webRTC-selectCamera-menulist">

+          <menupopup id="webRTC-selectCamera-menupopup"/>

+        </menulist>

+      </popupnotificationcontent>

+      <popupnotificationcontent id="webRTC-selectMicrophone" orient="vertical">

+        <separator class="thin"/>

+        <label value="&getUserMedia.selectMicrophone.label;"

+               accesskey="&getUserMedia.selectMicrophone.accesskey;"

+               control="webRTC-selectMicrophone-menulist"/>

+        <menulist id="webRTC-selectMicrophone-menulist">

+          <menupopup id="webRTC-selectMicrophone-menupopup"/>

+        </menulist>

+      </popupnotificationcontent>

+    </popupnotification>

+

+    <popupnotification id="geolocation-notification" hidden="true">

+      <popupnotificationcontent orient="vertical" align="start">

+        <separator class="thin"/>

+        <label id="geolocation-learnmore-link" class="text-link"/>

+      </popupnotificationcontent>

+    </popupnotification>

+

+    <popupnotification id="mixed-content-blocked-notification" hidden="true">

+      <popupnotificationcontent orient="vertical" align="start">

+        <separator/>

+        <description id="mixed-content-blocked-moreinfo">&mixedContentBlocked.moreinfo;</description>

+        <separator/>

+        <label id="mixed-content-blocked-helplink" class="text-link"

+               value="&mixedContentBlocked.helplink;"/>

+      </popupnotificationcontent>

+    </popupnotification>

+

+  </popupset>

+

+#ifdef CAN_DRAW_IN_TITLEBAR

+<vbox id="titlebar">

+  <hbox id="titlebar-content">

+#ifdef MENUBAR_CAN_AUTOHIDE

+    <hbox id="appmenu-button-container">

+      <button id="appmenu-button"

+              type="menu"

+              label="&brandShortName;"

+              style="-moz-user-focus: ignore;">

+#include browser-appmenu.inc

+      </button>

+    </hbox>

+#endif

+    <spacer id="titlebar-spacer" flex="1"/>

+    <hbox id="titlebar-buttonbox-container" align="start">

+      <hbox id="titlebar-buttonbox">

+        <toolbarbutton class="titlebar-button" id="titlebar-min" oncommand="window.minimize();"/>

+        <toolbarbutton class="titlebar-button" id="titlebar-max" oncommand="onTitlebarMaxClick();"/>

+        <toolbarbutton class="titlebar-button" id="titlebar-close" command="cmd_closeWindow"/>

+      </hbox>

+    </hbox>

+  </hbox>

+</vbox>

+#endif

+

+<deck flex="1" id="tab-view-deck">

+<vbox flex="1" id="browser-panel">

+

+  <toolbox id="navigator-toolbox"