Quote Originally Posted by Jackalux View Post
Also having this problem. Note that original post states this is ONLY to do with watching Flash movies in full screen mode. Otherwise we don't want to have to change universal settings. I suspect an issue with Ubuntu implementation of Flash or Firefox, whereby they don't restrain the screen dimming/locking facility, as VLC does.

Cheers to anyone who can help,
That's exactly the issue, as I've described it above. However, I've yet to find a solution even after installing Firefox 11