I use Firefox, and I am pleased, only a few times do I need to use IE, but it is mostly for something like connecting to FTP servers and just bad code. I know the CompTIA website doesn't agree with Firefox. Either way, it's a fun browser. Avant is another nice one to check into.
EDIT: Just remembered that Firefox also has a nice pop-up blocker.
EDIT: Just remembered that Firefox also has a nice pop-up blocker.
WWBBD?