Scripte unter E10 funktionieren nicht

//	aboutDialog 3


(function() {


   if (location != 'chrome://browser/content/browser.xul')
		return;		

	function frameScript() {


		var chromeWindow = content.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
			.getInterface(Components.interfaces.nsIWebNavigation)
			.QueryInterface(Components.interfaces.nsIDocShellTreeItem)
			.rootTreeItem
			.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
			.getInterface(Components.interfaces.nsIDOMWindow);


		addEventListener('DOMContentLoaded', function() {

			if (content.location != 'chrome://browser/content/aboutDialog.xul')
				return;

			var doc = content.document;
			var aboutDialogContainer = doc.getElementById('aboutDialogContainer');
			var launchBox = doc.createElement('hbox');
			aboutDialogContainer.appendChild(launchBox);
			launchBox.setAttribute('id', 'launchBox');

			launchBox.innerHTML = '\
				<button id="aD-downloads" label="Downloads" class="aD-launchButton"/>\
				<button id="aD-bookmarks" label="Lesezeichen" class="aD-launchButton"/>\
				<button id="aD-history" label="Chronik" class="aD-launchButton"/>\
				<button id="aD-addons" label="Add-ons" class="aD-launchButton"/>\
				<button id="aD-sync" label="Sync" class="aD-launchButton"/>\
				<button id="aD-settings" label="Einstellungen" class="aD-launchButton"/>\
         ';


			function buttonfunc(id, command, param) {
				doc.getElementById(id).addEventListener('click', function(event) {
					if (event.button == 0) {
						command(param);						
					};
				});
			};


			buttonfunc('aD-downloads', chromeWindow.PlacesCommandHook.showPlacesOrganizer, 'Downloads');
			buttonfunc('aD-bookmarks', chromeWindow.PlacesCommandHook.showPlacesOrganizer, 'AllBookmarks');
			buttonfunc('aD-history', chromeWindow.PlacesCommandHook.showPlacesOrganizer, 'History');
			buttonfunc('aD-addons', chromeWindow.BrowserOpenAddonsMgr, null);
			buttonfunc('aD-sync', chromeWindow.openPreferences, 'paneSync');
			buttonfunc('aD-settings', chromeWindow.openPreferences, null);


		});


	};	


	var frameScriptURI = 'data:,(' + frameScript.toString() + ')();';


	window.messageManager.loadFrameScript(frameScriptURI, true);	

})();