[citation][nom]sykozis[/nom]Mozilla copies Opera? Might want to look at history.... Opera copied Mozilla by creating a web browser. Mozilla is the same group that created Netscape long before Opera ever existed.[/citation]
Firefox has been copying Opera ever since. And so has everyone else for that matter. That's not necessarily bad though. I personally prefer Opera to Firefox, like most people that have used both, but I like Firefox too, and if Opera gets eaten by Facebook, Firefox will be my browser of choice.
I think this is a great idea for them, and I hope it works well. Firefox might not be anyone's favorite browser, but it doesn't seem to be anyone's least favorite browser either. It's a good solid product that does what it's supposed to do, and if their OS does the same, they'll have a winner.