I haz virus on my computer...OR SUM SHAT!! I know this because when I am on Firefox just diddling around and click on a new tab. BOOM! POP UP behind the new tab. Some stupid advertisement shit. Right?! well this happened after I downloaded a file last week to jailbreak my iPhone. I've used Malaware bytes, kaspersky rootkit killer, avast and it found nada. Whaddufux doido?!