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Firefox crashes after adobe flash 11 upgrade

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I have Win7 (64). My Firefox 14.0.1 was working find with Adobe Flash 10. When Firefox upgraded to 15.0.1 and simultaneously upgraded to Adobe Flash 11. Now Firefox crashed as soon as I go to a site with Flash content (like cnn.com or youtube.com). As soon as I uninstall Adobe Flash completely, Firefox starts to respond again (but of coarse without displaying any Flash contacts as it was uninstalled). I even tried downgrading back to Firefox 14.0.1 and reinstalled Adobe Flash 11, and I get the same crashing results. As well as the same results when I uninstall Adobe Flash (meaning that is responds again, but without displaying Flash content). I also tried the same sequences in safe-mode, but still have the same issues.

I am seeing lots of posts regarding trouble with the new Adobe Flash 11, but no definative solution. Can someone please assist me with this. Or at least instruct me on how to downgrade back to Adobe Flash 10. Their site is not clear on how to do this.

Thanks

BTW - I have a second computer that is a complete cloned image of this machine (the only difference is the hardware setup is different, with different respective drivers). This second computer is not having any problems with Firefox 15.0.1 and Adobe Flash 11. Can this problem be caused by a hardware issue?

I have Win7 (64). My Firefox 14.0.1 was working find with Adobe Flash 10. When Firefox upgraded to 15.0.1 and simultaneously upgraded to Adobe Flash 11. Now Firefox crashed as soon as I go to a site with Flash content (like cnn.com or youtube.com). As soon as I uninstall Adobe Flash completely, Firefox starts to respond again (but of coarse without displaying any Flash contacts as it was uninstalled). I even tried downgrading back to Firefox 14.0.1 and reinstalled Adobe Flash 11, and I get the same crashing results. As well as the same results when I uninstall Adobe Flash (meaning that is responds again, but without displaying Flash content). I also tried the same sequences in safe-mode, but still have the same issues. I am seeing lots of posts regarding trouble with the new Adobe Flash 11, but no definative solution. Can someone please assist me with this. Or at least instruct me on how to downgrade back to Adobe Flash 10. Their site is not clear on how to do this. Thanks BTW - I have a second computer that is a complete cloned image of this machine (the only difference is the hardware setup is different, with different respective drivers). This second computer is not having any problems with Firefox 15.0.1 and Adobe Flash 11. Can this problem be caused by a hardware issue?

Modified by gguevara

All Replies (2)

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Hi gguevara,

First try to Turn off hardware acceleration in Firefox and "disable the hardware acceleration" in the Flash Player too :

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

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

also try to Disabling Protected Mode in Flash (the link is for 11.3, do the same for 11.4), see the same in "Last resort" in the next link from adobe forum http://forums.adobe.com/thread/1018071?tstart=0

Finally if you still have crashes you must download and Install Flash 10.3 but first uninstall your current version with adobe uninstaller program .


"Can this problem be caused by a hardware issue?" see:

Upgrade your graphics drivers to use hardware acceleration and WebGL


thank you

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Seemed to have the same problem, running x64 Windows 7 with FF15.0.1 and Flash 11. I found an action which would reliably cause FF to crash and turning off hardware acceleration in FF appears to have fixed it.

My graphics card is an AMD HD5970, running their latest drivers (Catalyst 12.8).