Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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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.

video not playing

My videos on Google Photos will not play. Avi, Mov, or Mp4 video show "this video format is not supported". Chrome and Internet Explorer has no problems playing them, just Firefox 84.0.1 (64-bit)

My videos on Google Photos will not play. Avi, Mov, or Mp4 video show "this video format is not supported". Chrome and Internet Explorer has no problems playing them, just Firefox 84.0.1 (64-bit)

Alle antwurden (4)

Can show us what you are talking about and provide links so that we can try and replicate the issue?

It works for me. see screenshot Did you try safe mode?

Safe Mode would be a good test.

Also, Firefox on Windows 7 uses Media Foundation, Microsoft's media components, to play H.264/MP4 video. I have a copy of the old YouTube test page. Does this show your Firefox will play H.264/MP4 videos:

https://www.jeffersonscher.com/sumo/html5-video.html

(The results we want are "supported" or "probably".)