I may be a little dumb, but what is "sfc /scannow" and how does it apply to Firefox?
Well, another thing. Earlier today, Windows Explorer was having problems so I ran that command so it would fix it and it did. I don't know if it's a coincidence or not, but after I rebooted my computer after the scan, Firefox acted like that.
QUOTE(Slyakin @ Mar 6 2011, 05:45 PM) Try clearing the cache, or deleting all the cookies and stuff in your history.
Also try waiting for a little while and then trying again; Firefox can be a little moody.