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Om de ûnderfining foar jo te ferbetterjen is tydlik de funksjonaliteit dan dizze website troch ûnderhâldswurk beheind. Wannear in artikel jo probleem net oplost en jo in fraach stelle wolle, kin ús stipemienskip jo helpe yn @FirefoxSupport op Twitter en /r/firefox op Reddit.

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Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Why can FF not play "H.264" and "MSE & H.264" videos like Crome do?

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HL1234
HL1234
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Win8 + FF 59.0.2 (x64) I can play HTML5-Videos I can play Non-HTML5-Videos But I can not play "H.264" and "MSE & H.264" videos with FireFox. When I'm downloading the MP4 Video (i.e.) I can play it within Windows with the media player. I.e. this videos does not play: https://channel9.msdn.com/Shows/Azure-Friday/Get-started-with-Azure-for-NET-developers https://channel9.msdn.com/Shows/Azure-Friday/Deploy-Bitnami-Nodejs-HA-Cluster-with-Azure-Cosmos-DB You can check this also on the youtube site: https://www.youtube.com/html5

With Google Chrome its possible to play all videos but I would like to further use FF. When will come a repair for that - thank you.

Win8 + FF 59.0.2 (x64) I can play HTML5-Videos I can play Non-HTML5-Videos But I can not play "H.264" and "MSE & H.264" videos with FireFox. When I'm downloading the MP4 Video (i.e.) I can play it within Windows with the media player. I.e. this videos does not play: https://channel9.msdn.com/Shows/Azure-Friday/Get-started-with-Azure-for-NET-developers https://channel9.msdn.com/Shows/Azure-Friday/Deploy-Bitnami-Nodejs-HA-Cluster-with-Azure-Cosmos-DB You can check this also on the youtube site: https://www.youtube.com/html5 With Google Chrome its possible to play all videos but I would like to further use FF. When will come a repair for that - thank you.

Keazen oplossing

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Shadow110
Shadow110
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Hi, it looks like you have too many extensions that can break the page such as Privacy Badger, uBlock Origin and a few more. I have no problem playing those videos in Private Browsing. with uBlock, Ghostery on.

Are you accepting the required cookies in Options --> Privacy & Security ??

Lets try this please : SAFE MODE

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (file: localstore-safe.rdf)
  • Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected

TEST''''is issue still there ?

If the issue is not there then it is your Extensions as mentioned. If the issue is still there : VIDEO AUDIO

Please let us know if this solved your issue or if need further assistance.

cor-el
cor-el
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Keazen oplossing

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HL1234
HL1234 Fraacheigener
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I found out that I does not have this Problems on Windows 7. It is a Windows 8 Notebook where the new FF isn't working, for videos I told above. So, may be its OS dependent but on the other hand Chrom works with this videos on the same Win8 Notebook and also in Chrom I installed µBlock, Privacy Backer, etc... But, excuse me, it seems it isn't a Firefox problem.

James
James
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If you have a N or KN edition of Windows then you may be missing the media feature packs (as mentioned in https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows ) as it provides codecs needed for to fully support the HTML5 players like the one at Youtube https://www.youtube.com/html5/