Firefox 11.0 - Youtube Freezing - Mac

[MDP91]

Right then,

I downloaded the latest update for Firefox, so I'm running 11.0 and there's one thing that's driving my f**king mental! Basically If I'm watching a video on youtube then hit the back button the browser freezes, so I have to force quit but the audio keeps on playing?! Anyone else had this issue? Think I'm going to have to downgrade back to my previous version

 

[Tom]

www.google.com/chrome

 

[MDP91]

www.google.com/chrome

Already got it, but I use it for p**n.