(adsbygoogle = window.adsbygoogle || []).push({}); Well i think i could have a virus as the title said, i used to get messages saying that i had a virus and needed to install a virus protection, from a fake virus protector...But i got rid of that with malwarebytes. There were 4 fake virus protection programs on my PC, but i deleted them and it worked fine. But today my computer has been running slower than normal. And my firefox browser minimized it self today, and i got a message saying your computer is infected with a virus install protection now. I clicked closed...it too me to a website like install screen with a install bar, like a fake virus protection. So i did a Malwarebytes scan but nothing was detected...So worried if it's some how hidden or what, or if it's a attack site or something that i get it from? I have no clue kinda lost what to do...Please help.

First point of call is install something like Spybot, as it sounds like spyware which is usually pretty harmless.
Then get yourself some sort of antivirus on there, AVG is free and it's not the best, but I'd rather have some then non at all if I were you. Try that and let me know how you get on.