I too use primarily Firefox for my browsing needs...
Well, I actually use Safari 3 for my general browsing (it's very fast and clean) and only break out Firefox 2 when I need Firebug or the Web Developer Toolbar (there seem to be memory leak issues with Firefox). A bonus of using Safari is that form elements look great!
Yeah I didn't mean to assume you used Firefox primarily although the way I worded it definitely seemed that way. Safari is much faster and Firefox with extensions and the UI is friendly, sleek, lovable? Then again I like FF because of its extensions and certain ones I can not live without (thats a lie don't listen to him).

Joined: 08/08/2007