add:  window.close(); 
context: function onUnload(aEvent){  removeToolboxListeners();  unwrapToolbarItems();  persistCurrentSets();    notifyParentComplete();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/ac997b7ac7b88cf002a93d5628fd382533563839/customizeToolbar.js/buggy/mail/base/content/customizeToolbar.js