How do I disable FirePHP logging?

Hi All,

I have the following logging service setup in my services.php. My question is basically how do I stop the firePHP output from displaying using a boolean flag?

    $di->set('logger',function() use($config){
        $logger = new Phalcon\Logger\Adapter\Firephp('debug', null); // null  
        //$logger->setEnabled($config->debug); // this only works when including the fire.php file
        //$logger->log('Logging enabled...'); // use this to display arrays
        // how do i disable the logging?
        return $logger;
    });

Any advice / help greatly appreciated.

Thanks