add: feedHandlerInfo.handledOnlyByPlugin = false; 
context:   _loadFeedHandler: function() {    this._handledTypes[TYPE_MAYBE_FEED] = feedHandlerInfo;  },
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/dafb3ac49460dac9a0c47b4520c8969d38632f79/applications.js/clean/browser/components/preferences/applications.js