rem: BookmarksUtils.addBookmark(uri, title, doc.charset); 
add: BookmarksUtils.addBookmark(uri, title, doc.charset, description); 
context:     addBookmarkForFrame : function() {      var doc = this.target.ownerDocument;      var uri = doc.location.href;      var title = doc.title;      if ( !title )        title = uri;      BookmarksUtils.addBookmark(uri, title, doc.charset);    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/89ff32d21ec656df01883f97f29d064b75caf617/browser.js/buggy/browser/base/content/browser.js