Getting malware or virus when i visit gamespot

I keep getting fake firefox update or fake windows warnings when i visit gamespot. I don't have this problem on other websites.

@narlymech: you have some sort of malware already on your PC. GameSpot is a verified safe website, I've been using it my whole life on several PCs no issue.

@narlymech: This could occasionally be the result of a bad ad that slipped into our network - if you could provide screenshots, it'd be super helpful. Thanks!