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Firefox 25 on Windows 7: Flash 11.9.900.117 freezes Firefox

Nov 1, 2013 1:35 PM

Tags: #error #windows_7 #crashing #flash_player_11 #firefox_25

I have done the troubleshooting suggested by Mozilla https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

Firefox works fine but as soon as any Flash content is started Firefox locks up and I have to close the process in Windows Task Manager.

I can't go into Flash settings and disable hardware acceleration because Flash freezes Firefox completely before that.

 
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  • Chris Campbell
    9,456 posts
    May 4, 2010
    Currently Being Moderated
    Nov 1, 2013 4:35 PM   in reply to john402

    Could you try disabling hardware acceleration via your system's mms.cfg file?

     

    This will be located in your C:\windows\syswow64\macromed\flash folder (assuming that you are using a 64 bit version of Windows).  Simply open up the mms.cfg file with a text editor and add the following line:

     

    DisableHardwareAcceleration=1

     

    Save the file and try again.

     

    If that fails, I'd recommend reverting back to Flash Player 11.7 until this can be resolved.

     

    Where can I find direct downloads of Flash Player 11.7 for Windows or Macintosh?

     
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    Nov 14, 2013 8:28 AM   in reply to Chris Campbell

    This didn't work for me. I had no file named "mms.cfg" in my C:\windows\syswow64\macromed\flash folder. I created one and added the entry, but it didn't seem to work after I rebooted the system. I confirmed by going into the settings and it was still enabled.

     

     

    Any suggestsions?

     
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    Nov 15, 2013 9:11 AM   in reply to Chris Campbell

    Nothing? You don't know or you don't want to help?

     

    Just asking because it seems there have been a few of these questions which have gone unupdated.

     
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