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Only 'h.264' and 'MSE & h.264' are disabled in youtube html5 video player support.

Posted

I spotted this issue right after I installed Windows 10, and still haven't been able to figure out why. I did some research on google, but none of them were the case for firefox 39 (and 40.0 because I just updated!), and Windows 10.

What I believe is that Firefox has a built-in Open H.264 codec so I don't need additional installations or tweaks to enable h.264 support in the recent build. However, even if I can clearly see the codec installed in the plug-in list, it seems something is missing in my Firefox accroding to the support page.

I already tried clean reinstall, and even checked on the safe mode but had no luck so far. I wish I could get some help or any advice. Thanks in Advance!

I spotted this issue right after I installed Windows 10, and still haven't been able to figure out why. I did some research on google, but none of them were the case for firefox 39 (and 40.0 because I just updated!), and Windows 10. What I believe is that Firefox has a built-in Open H.264 codec so I don't need additional installations or tweaks to enable h.264 support in the recent build. However, even if I can clearly see the codec installed in the plug-in list, it seems something is missing in my Firefox accroding to the support page. I already tried clean reinstall, and even checked on the safe mode but had no luck so far. I wish I could get some help or any advice. Thanks in Advance!
Attached screenshots

Modified by civv

Chosen solution

Actually... Firefox needs the Windows Media Foundation to decode H.264.

First, let's see whether this is a YouTube-only issue: can you play the H.264 video on this test page: http://www.quirksmode.org/html5/tests/video.html

If it doesn't work on any site, do you maybe have an N or KN version of Windows that doesn't have the Media Feature Pack bundled in? Please see: https://www.microsoft.com/en-us/download/details.aspx?id=48231

Read this answer in context 25

Additional System Details

Installed Plug-ins

  • Foxit Reader Plug-In For Firefox and Netscape
  • Intel web components updater - Installs and updates the Intel web components
  • Intel web components for Intel® Identity Protection Technology
  • Next Generation Java Plug-in 11.51.2 for Mozilla browsers
  • iTunes Detector Plug-in

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0

More Information

jscher2000
  • Top 10 Contributor
8837 solutions 72222 answers

Chosen Solution

Actually... Firefox needs the Windows Media Foundation to decode H.264.

First, let's see whether this is a YouTube-only issue: can you play the H.264 video on this test page: http://www.quirksmode.org/html5/tests/video.html

If it doesn't work on any site, do you maybe have an N or KN version of Windows that doesn't have the Media Feature Pack bundled in? Please see: https://www.microsoft.com/en-us/download/details.aspx?id=48231

Actually... Firefox needs the Windows Media Foundation to decode H.264. First, let's see whether this is a YouTube-only issue: can you play the H.264 video on this test page: http://www.quirksmode.org/html5/tests/video.html If it doesn't work on any site, do you maybe have an N or KN version of Windows that doesn't have the Media Feature Pack bundled in? Please see: https://www.microsoft.com/en-us/download/details.aspx?id=48231

Helpful Reply

Thank you! Jscher2000! Your assumption was correct. After I install the package, the support page shows all clear.

I wish I could have better knowledge about Media Foundation maybe I could have eased my suffer.

Anyway, again I really appreciate for this. :D

Thank you! Jscher2000! Your assumption was correct. After I install the package, the support page shows all clear. I wish I could have better knowledge about Media Foundation maybe I could have eased my suffer. Anyway, again I really appreciate for this. :D