There is an known issue with Shockwave Flash 11.3.300.257 in Vista and 7 see:

http://forums.adobe.com/thread/1018071?tstart=0

also : PLEASE vote for this bug in https://bugzilla.mozilla.org/show_bug.cgi?id=747683

( https://support.mozilla.org/en-US/forums/contributors/708430?last=47138#post-47138 )

thank you

Perfect, thanks so much!

I did it for firefox frozen and it's working but I still can't watch video and play games

I am still looking for a fix - this one did not help me.

But after this and starting FF in safe mode (help>restart with add ons disabled) I solved but this can't be permanent fix.

dfrost909, if you can solve this in safe mode, then enable one by one your extensions to see which is the problem.

enable one, can not solve it, disable it then enable another ..........

thanks again

Hi guys - for me this helped. Close Firefox - open Internet Explorer - got to the Adobe Flash Player Site:

http://get.adobe.com/de/flashplayer/

In IE you can see there is the 64-bit version - (in Firefox there was just the 32-bit version) - got to: (others)

http://get.adobe.com/de/flashplayer/otherversions/

choose your system and version download it via internet explorer and install the adobe flash player restart firefox and it should work. helped me after wasting one day of my life to find a solution, alle sites work just fine now. hope this helps.

I did what you wrote but it didn't work

I don't have a solution yet either...

If this Flash 11.3 crashes or does not load in Firefox 13 does not solve it,

Install 10.3 flash : http://forums.adobe.com/thread/889580

thanks again

Try to disable hardware acceleration in Firefox and in theFlash plugin.

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

• http://helpx.adobe.com/flash-player/kb/video-playback-issues.html

Flash "Display settings" window:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html

See also:

• https://support.mozilla.org/en-US/kb/keep-flash-up-to-date-and-troubleshoot-problems

My flash works again by removing FlashUtil32_11_3_300_257_Plugin and FlashUtil64_11_3_300_257_Plugin these are 2 pugins that startup together with the plugincomtainer from firefox (so i had 3 mayor memory-eating things running while playing flashgames) Now flash still works, i can game and it crashes less often.