rem:  return nsNewsBlogFeedDownloader.QueryInterface(aIID); }, 
add:  return nsNewsBlogAcctMgrExtension.QueryInterface(aIID); } 
context:     createInstance: function(aOuter, aIID)    {      if (aOuter != null)        throw Components.results.NS_ERROR_NO_AGGREGATION;      if (!aIID.equals(Components.interfaces.nsINewsBlogFeedDownloader) &&          !aIID.equals(Components.interfaces.nsISupports))        throw Components.results.NS_ERROR_INVALID_ARG;      // return the singleton      return nsNewsBlogFeedDownloader.QueryInterface(aIID);    },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/5b738a1db565c4656af5afcdbf2cccb1517fde84/newsblog.js/buggy/mail/extensions/newsblog/js/newsblog.js