ad.mozzi.biz keep pop up in a new tab no matter where ever I click even the menu bar itself. I have Kaspersky Internet Security installed with the latest virus definition update but couldn't find any spyware etc.
Try other sources and scan, like Spybot S&D, MalwareBytes, and Superantispyware. But it sounds like you have malware on your PC. I had something similar problem with McCrappy (McAfee) that allowed a download, found a problem, but by then it was too late and the infection occured and McCrappy found nothing, and only these others could help identify and cure the problem.