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I use Windows 7 home basic. I upgrade Firefox 13 and flash player 11.Now I can't watch video.Several times uninstall-load Firefox flash player no solution


I use Windows 7 home basic. I upgrade Firefox 13 and then upgrade flash player 11.3.300.Now I can't watch video and play games.Several times uninstall and load Firefox and flash player the solution is negative. Flash player work chrome and IE

Additional System Details


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0

More Information

  • Top 10 Contributor
2347 solutions 20809 answers

Please check out this thread from the other day and see whether anything in there helps: Flash doesn't work in Firefox 13.

  • Top 10 Contributor
  • Moderator
10738 solutions 96600 answers

Maybe you need to check the firewall to make sure that the Flash plugin isn't blocked.

Flash 11.3 may use a direct connection and not access via the browser (plugin-container).

Modified by cor-el

Question owner

Thanks, I'll

  • Top 25 Contributor
616 solutions 4260 answers

see https://support.mozilla.org/en-US/questions/929196

thank you

louisng04302 0 solutions 1 answers

Helpful Reply

Add the following line to your mms.cfg file located in:

  • Windows 32bit: C:\windows\system32\macromed\flash
  • Windows 64bit: C:\windows\syswow64\macromed\flash


You can use softwares like Notepad or else.

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

Modified by louisng04302

CyFocus 1 solutions 2 answers

Helpful Reply

I Uninstall RealPlayer and it all works now.

stefnickgr 0 solutions 1 answers

I had the same problem, tried to uninstall real player when I came across another program I had installed some time ago called real alternative or something like that.

I uninstalled the "real alternative" and all my flash material came to life again!!!


shunshort 2 solutions 6 answers

The same thing happened to me! It happened when i installed the latest update to Adobe Flash Player(11.3.300.257). So i uninstalled and reinstalled Version and now all my videos play again!

lottielaneuve 0 solutions 7 answers

Uninstalling RealPlayer worked for me too. Thanks for the suggestion!

Modified by lottielaneuve

LongRider 0 solutions 1 answers

I don't understand how to put this change on. I've opened file:///C:/windows/system32/macromed/flash/mms.cfg and written on Notepad, then what? Need step by step help, please!

Thanks in advance, LongRider

  • Top 25 Contributor
616 solutions 4260 answers

Hi LongRider,

see : Disabling Protected Mode in Flash 11.3

thank you