4 ms·Firebug is a killer app. I would need something like that on another browser before I moved anywhere.by thorax 19y agoFirebug is a killer app. I would need something like that on another browser before I moved anywhere.andreyf 19y agoAddblock and greasemonkey would be on my cannot-live-without list, also.jamongkad 19y agoMine would be firebug and vimperator.