My vote: Firefox.
I've used Firefox for quite awhile now and i'd never go back to IE. Why?
Well, it's agreed that if you go to porn/advertising websites with IE, you will get a whole heap of spyware, etc on your computer. Go to those same websites with Firefox...I'd bet you wouldn't get any.
Then there's those sites with annoying pop-ups....with IE, sure, you could download an external program to stop SOME of that (I tried quite a few)...but wait, it's already in Firefox and it actually works.
Tabbed browsing...Well, I don't even see that in IE.
Customisation;
Firefox - Loads of extensions and themes to choose from.
IE - What? Where do I get those?
Mysticalninjajesus - I do not use Firefox to be a l33t h@xor that r0x0rz j00 w0r|d and thinks microsoft is t3h n00bz0r (I am making fun of you here, just so you know)...I use it simply because it is superior to IE in each and every way and I got sick of having annoying pop-ups and spyware (although granted it was probably someone else that got it on my computer...which wouldn't have happened if I had of made them use Firefox).
How about you try it and then give a reason for why IE/Firefox is better?
Edit: By the way, if anyone has Firefox, I like how you can customise quite a few settings by typing in about
:config in the address bar. (I never knew that before now.
) Anyway, it seems you can change a few settings in here and Firefox will actually load pages even faster than IE (for all those complaining).
http://www.computerbb.org/about150.html
Try what's mentioned here, with the exception of that last one, which has been removed in the latest versions.