yo man I got the exact same problem..I had it a long time ago but did a system reboot and it was all good..Well it just started doing it again like 3 days ago but it only does it on certain sites.I am fine here but my luck most other sites do it to the point where I can't even get further than the homepage seeing as every single thing on the site is red X's
I tried all the stuff above and it still didn't work...