    getClassObject: function (compMgr, cid, iid)    {        if (!iid.equals(nsIFactory))            throw NS_ERROR_NOT_IMPLEMENTED;            if (cid.equals(CLASS_ID))            return FirebugFactory;        throw NS_ERROR_NO_INTERFACE;    },
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/be05bb1b5ce9dc07f6f4f994ca42945edd646c04/firebug-service.js/buggy/extension/components/firebug-service.js