I downloaded an application to try to "speed up" my computer. I'm usually prety good about making sure i know whats being downoaded but it downloaded yahoo something or other (toolbar i think) and now when I open a new tab in firefox it goes to yahoo. (*although when i click "home" it goes to the firefox page). any help? also anyway to define the new tab page kinda like they do in google chrome? (kinda like a "home" screen) thanks