i would reccommend firefox to anyone (running windows) over IE or netscape - I havent tried opera, nor any others.

If you apply the about:config pipelining tweaks, firefox is WAY faster than IE. and it seems to be a lot more stable to me.

every box in my house (5 of em) uses firefox exclusively. I manually deleted every shortcut to IE on each box. as a result, my weekly deleting of up to 300+ assorted spyware hits in adaware and spybot has reduced to about 2 a week.
that's reason enough for me.

and no more mystery IE toolbars. or homepage redirects. or search hijacks.