rem: if (aEvent.target._menubuttonParent.open) 
add: if (aEvent.originalTarget.localName != "menuitem" && aEvent.currentTarget.open) 
context: function ClickAndHoldStopEvent(aEvent){  if (aEvent.target._menubuttonParent.open)    aEvent.stopPropagation();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/b6abc0241cc67d42af49c52160ba4c6af920cc36/browser.js/buggy/browser/base/content/browser.js