consoleService.unregisterListener(this); 
consoleService.unregisterListener(this); 
    disable: function()    {        consoleService.unregisterListener(this);            },
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/8237a6359bebacf3e34f1134ef713c687c8e3edb/errors.js/buggy/extension/content/firebug/errors.js