User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0

Steps to reproduce:

I installed Firefox via Flatpak in Linux (Gnome), because I had another problem with native Firefox and keyboard not working (Apparently an multi-year long on/off issue).

Actual results:

It seamed to work just great, until I started streaming video's. This worked with normal YouTube videos, but with some other services the videos stuttered a lot.

Expected results:

I found some similar issues online that fixed the problem by installing the 'org.freedesktop.Platform.ffmpeg-full' Flatpak extension. This seams to have resolved my issue as well, but it should have worked out-of-the box right after installing the initial Firefox package. It also makes me wonder what other issues I am about to run into, due to the lack of other missing Platform extensions that Firefox relies on, but does not deal with during installation?

The Bugbug bot thinks this bug should belong to the 'WebExtensions::Untriaged' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

The severity field is not set for this bug.
:gerard-majax, could you have a look please?

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Weird: https://searchfox.org/mozilla-central/rev/bf87e869ece2406e9e425a74e8bf77aba0975625/taskcluster/docker/firefox-flatpak/runme.sh#101-105

This is a WONTFIX due to legal reasons as outlined in the duplicate bug.