I read that Firebug 2 now uses the newer JSDBG2 API of recent Firefox, so there should be no performance problems as there were with Firebug 1.x in recent Firefox versions.
I read that Firebug 2 now uses the newer JSDBG2 API of recent Firefox, so there should be no performance problems as there were with Firebug 1.x in recent Firefox versions.