add: var request = event.target; var url = request.channel.originalURI.spec; var feed = gFzFeedCache[url]; 
context: Feed.onDownloadError = function(event) {  if (feed.downloadCallback)    feed.downloadCallback.downloaded(feed, kNewsBlogRequestFailure);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/67b43c3af40fde093975cbbbca02f8b4854172fb/Feed.js/buggy/mail/extensions/newsblog/content/Feed.js