FF 31.2 ESR mit Icons im Rechtsklickmenu?

(function() {


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


	var menugroup = document.createElement('menugroup');
	menugroup.id = 'context-navigation';
	var pmSep = document.getElementById('page-menu-separator');
	pmSep.parentNode.insertBefore(menugroup, pmSep);


	function append(id, ttText) {
		var item = document.getElementById(id);
		menugroup.appendChild(item);	
		item.className = 'menuitem-iconic';
		item.removeAttribute('disabled');	
		item.removeAttribute('label');
		item.setAttribute('tooltiptext', ttText);
	};


	append('context-back', 'Zurück');
	append('context-forward', 'Vor');
	append('context-reload', 'Neu laden');
	append('context-stop', 'Stopp');
	append('context-bookmarkpage', 'Lesezeichen für diese Seite hinzufügen');


	var css = '\
		#context-navigation .menuitem-iconic \
			{list-style-image: url(chrome://browser/skin/Toolbar.png)} \
		#context-back {-moz-image-region: rect(0px, 54px, 18px, 36px)} \
		#context-forward {-moz-image-region: rect(0px, 72px, 18px, 54px)} \
		#context-reload {-moz-image-region: rect(0px, 90px, 18px, 72px)} \
		#context-stop {-moz-image-region: rect(0px, 108px, 18px, 90px)} \
		#context-bookmarkpage {-moz-image-region: rect(0px, 144px, 18px, 126px)} \
		#context-navigation .menuitem-iconic .menu-iconic-left \
			{margin: 0 -15px 0 15px} \
	';


	var stylesheet = document.createProcessingInstruction('xml-stylesheet', 'type="text/css" href="data:text/css;utf-8,' + encodeURIComponent(css) + '"');
	document.insertBefore(stylesheet, document.documentElement);


	menugroup.parentNode.insertBefore(document.getElementById('context-sep-stop'), menugroup.nextSibling);


})();