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Firefox only playing sound for HTML5 videos on hardware acceleration (intel display)

Posted

HTML5 video playback shows no video, only audio is played. This is with hardware acceleration on (Intel HD Graphics), no addons or plugins, 64-bit Firefox. I tried clean installing firefox multiple times. Fixes with hardware acceleration off (or in safe mode, when this is done automatically).

HTML5 video playback shows no video, only audio is played. This is with hardware acceleration on (Intel HD Graphics), no addons or plugins, 64-bit Firefox. I tried clean installing firefox multiple times. Fixes with hardware acceleration off (or in safe mode, when this is done automatically).

Additional System Details

Installed Plug-ins

  • Shockwave Flash 16.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:40.0) Gecko/20100101 Firefox/40.0

More Information

guigs 1072 solutions 11697 answers

Please update your plugins to the latest version. Check to make sure you are up to date:

If you see any issues also see:

Please update your plugins to the latest version. Check to make sure you are up to date: *[https://www.mozilla.org/en-US/plugincheck/] If you see any issues also see: *[[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]]