rem: var title = doc.title; var description = BookmarksUtils.getDescriptionFromDocument(doc); 
add: var title = (arguments.length > 1) ? feedTitle : doc.title; var description; if (arguments.length > 2) description = feedSubtitle; else description = BookmarksUtils.getDescriptionFromDocument(doc); 
context:   addLiveBookmark: function(url) {    var doc = gBrowser.selectedBrowser.contentDocument;    var title = doc.title;    var description = BookmarksUtils.getDescriptionFromDocument(doc);    BookmarksUtils.addLivemark(doc.baseURI, url, title, description);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/7e9ebab14b65d61f6fe973155ab31c8833609ec7/browser.js/buggy/browser/base/content/browser.js