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mp4 problem in Firefox v37.0.2 Windows 8.1

Posted

I'm using Firefox with 4 profiles. One of them doesn't work mp4. What could be the problem? When I open mp4 http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4 it says "Video can't be played because the file is corrupted.".

I'm using Firefox with 4 profiles. One of them doesn't work mp4. What could be the problem? When I open mp4 http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4 it says "Video can't be played because the file is corrupted.".

Chosen solution

After I compare prefs.js files of both profiles I saw that "media.windows-media-foundation.enabled" was false. I opened about:config and reset "media.windows-media-foundation.enabled". After restarting Firefox http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4 has been working perfectly.

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Additional System Details

Installed Plug-ins

  • ActiveTouch General Plugin Container Version 105
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.3
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.1
  • DivX Web Player version 3.2.4.1250
  • DivX VOD Helper Plug-in
  • Facebook Desktop Plugin
  • Facebook Video Calling Plugin
  • GEPlugin
  • Version 5.41.2.0
  • Google Update
  • IE Tab 2 Plug-in for Mozilla/Firefox
  • Intel web components for Intel® Identity Protection Technology
  • Intel web components updater - Installs and updates the Intel web components
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 11.31.2 for Mozilla browsers
  • Octoshape embedded video plugin
  • NPWLPG
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 17.0 r0
  • 5.1.30514.0
  • VLC media player Web Plugin 2.1.3
  • WildTangent Games App V2 Presence Detector

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0

More Information

Chosen Solution

After I compare prefs.js files of both profiles I saw that "media.windows-media-foundation.enabled" was false. I opened about:config and reset "media.windows-media-foundation.enabled". After restarting Firefox http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4 has been working perfectly.

After I compare prefs.js files of both profiles I saw that "media.windows-media-foundation.enabled" was false. I opened '''about:config''' and reset "media.windows-media-foundation.enabled". After restarting Firefox http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4 has been working perfectly.