Firefox keeps on opening up new tabs for some site called Dealshark and 123 something or another. I constantly get pop-ups in the middle of my pages and many terms are now highlighted within pages I am looking at. Terns like "Friday afternoon" or "Gold Bullion" show up in green underlined highlights. I also get a re-direct pop up in the middle of most any page trying to take me to what claims to be Amazon.com. All this despite the fact that I have pop up blockers in place. On top of this about two thirds of the time a new square window opens up as I am typing and I have to clear it to continue. Every time I click a link I get one of these new tabs or window. None of my other computers have this so I know it's some kind of virus. I am using a Macbook Pro running Snow Leopard. Can you please help me clean this out? Thank you, Andre King