rem: document.getElementById("bookmarks-chevron").parentNode 
add: document.getElementById("overflow-padder") 
context:   get mObservers ()  {    if (!this._observers) {      this._observers = [        document.getElementById("bookmarks-ptf"),        document.getElementById("bookmarks-menu").parentNode,        document.getElementById("bookmarks-chevron").parentNode      ]    }    return this._observers;  },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/9273880c70ae226f38751ca490af247420ca0d1e/bookmarksMenu.js/buggy/browser/components/bookmarks/content/bookmarksMenu.js