Omg, I'm on a school computer, and I was "stuck" using IE as my browser.  It was slow fraggin' slow and full of virii, popups, adware, and who know what else, every time I tried going somewhere it tried loading badurl grand street interactive or some crap.  When I finally DID get to where I was going, 20 some popups...popped up.  Theres also about 3 search bars up there, all saying they block popups. (0 Blocked).  My progress could be compared to trying to put out a fire in hell.   Finally, I dled Firefox, and tripled (or more) my speed.  No popups, no adware, no crappy on working search bars...I can now surf the web and screw around in class, in peace.