It's great at stopping popups and all that kind of junk, but seems to run a lot slower than most browsers.
Runs fast on my machine, Linux, Fedora 2..., AMD64 3000+, Scsi 10K Maxtor Atlas , 160 mb sec... 1 Gig memory...
Fire Fox rocks. Tabbed browsing is great. I love how much I can tinker with everything under the hood. Rendering Engine better than IE and RSS support is really cool for those of us who love to read blogs and other xml feeds.
Course, I still need to render some pages in IE (mostly because of the way some webmasters design their pages) but these are few and far between. I also need IE for automatic updates but that is no big deal. Great browser