How to put log messages in Firefox's Error Console

Found out about how to add comments/logs to Firefox built-in Error Console. Really helps in debugging process.

1) get the Console Service component

var ConsSrv = Components.classes['@mozilla.org/consoleservice;1'].getService(Components.interfaces.nsIConsoleService);


2) write your logs!

ConsSrv.logStringMessage('here is my logs.. Hello!!!!');