I have firefox and the pop-up blocker is on, but I still get tons of pop-ups. What else can I do to stop these?

Adblock Plus and NoScript tend to take care of whatever Firefox itself misses. But if you are infected with Adware then the pop-ups may not be blockable by the browser. You'd need to do full scans with Malwarebytes and SuperAntiSpyware to get rid of the infections.