Youtube on Firefox could not play video

Fedora 32 Cinnamon Desktop from Fedora Spins + Firefox 81.0
Some videos could not be played.
Can you please help ?

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Did you already install the gstreamer (and other video/audio) codecs?

See:

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Is this RPM package or Flatpak? If it is RPM, do you have ffmpeg-libs package installed?

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It’s from Fedora Spins with continuous upgrades.
Help me please.

I am assuming you are using RPM package. First add RPMFusion Free repository if you haven’t done it already: sudo dnf install https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm

Then install ffmpeg-libs package: sudo dnf install ffmpeg-libs

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Hi. You need install ffmpeg… You can install it from UnitedRPMs or rpmfusion. :grinning:

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Thank you so much.
It works.

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