ZF-4952: Zend_Log_Writer_Firebug does not conform to formatters or setEventItem
The Zend_Log_Writer_Firebug class does not implement setFormatter() and as a result cannot be formatted. It also ignores extra information provided in setEventItem.
Suggested fix is to implement setFormatter() correctly, and pass the formatted string to Zend_Wildfire_Plugin_FirePhp::getInstance()->send($event['message'], null, $type) within the _write method.
It would also be nice if instead of simply null'ing the Label parameter, that it be interfaced with setEventItem() such that a label could be provided.