Why must Firefox and Opera fight?

Why must we fight?
Can't we at least just put it off until we distroy Internet Explorer?
Come on! Lets team up and distroy the true evil, instead of bickering all the time about which one is better...

>>27
Pray tell me what usability features FireFox lacks that Opera has. The extensions feature is well done. What I don't like about Opera is the fact that you can't make the page bar show up only when there is more than 1 tab open like Firefox. I don't want there taking up screen space when there is only a single page open.