add: if (aProperty.Value == NC_NS+"BookmarksToolbarFolder") { var bt = document.getElementById("bookmarks-ptf"); if (bt) { bt.ref = aSource.Value; document.getElementById("bookmarks-chevron").ref = aSource.Value; } } 
context:   onAssert: function (aDataSource, aSource, aProperty, aTarget)  {    this.setOverflowTimeout(aSource, aProperty);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/dc5278472ce669c2f9ca6a70c95352e31daea808/bookmarksMenu.js/buggy/browser/components/bookmarks/content/bookmarksMenu.js