For people who say that IE has pop up blockers and is the best, who cares, you still get a million spyware each time you go to a site! Opera and Firefox have built in popup blockers and you can take the ads off in opera and in firefox. They are much more safer to use on the net, and have more customizing options, such as; extentions, skins, ad ons, etc. I recently downloaded Opera and its quite good. Firefox has extentions, but opera has more options, like the wand, the voice, and you can take off images if you want.