Well, I gave Mozilla a try and I hate it. The Google toolbar makes IE like 10 times better. I just can't go without it. It will highlight words for you, translate pages to english on the fly and more.
I find Mozilla very bloated, it just isn't as clean as IE. I want simple... webpages clutter up my brain enough.🙂
I'm sure some people will genuinely like Mozilla, but I'm willing to bet that alot of people will like it just because it isn't Microsoft. It seems to be cool nowadays to hate Microsoft.