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...

Google is behind Mozilla too, you know? Not that I disagree; Opera, with all that functionality (even has an email and IRC client), is significantly smaller than bare-bones Firefox.

I'm actually quite pissed off about the entire FF affair. Everyone remembers why they started FF right? Because Mozilla was too big. Yes, FF was supposed to be a light replacement! Right on, I though!

FUCKING HAHA! GOT YOU! The only thing tinier is the install. FF is an overengineered monster. They threw everything in there, even the kitchen sink. And what exactly do they have to show? KISS? Sure...

FF could have been so much more than it is. I want to hit whoever allowed the feature scope to explode like that. >:(