Over the last few days, any time I try to visit youtube my computer completely freezes. The mouse doesn't move, I can't push ctrl+alt+del, nothing at all works. The screen just freezes while the page is loading. The computer doesn't seem to be busy working when it freezes. It seems to just stop completely. I do not have this problem with any other websites. I have scanned for viruses with Spybot and Malwarebytes. I downloaded Ccleaner and used that too, as I thought it might be some sort of registry error. No issues have been found. There are no other sypmtoms of problems with the computer. It is not running slowly. Everything seems normal except for youtube.
I am using Firefox 20.0..1 There are no strange add ons or toolbars that I use. I use Windows 7. Any ideas what might be causing the problem?