>>107339940
Except I do not know if that will help your Firefox case or not because:
$ flatpak info org.mozilla.firefox
Firefox - Fast, Private & Safe Web Browser
ID: org.mozilla.firefox
Ref: app/org.mozilla.firefox/x86_64/stable
Arch: x86_64
Branch: stable
Version: 145.0.2
License: MPL-2.0
Origin: flathub
Collection: org.flathub.Stable
Installation: user
Installed: 303.4MB
Runtime: org.freedesktop.Platform/x86_64/24.08
Sdk: org.freedesktop.Sdk/x86_64/24.08
Commit: f7c74844
Parent: 499dc000
Subject: Export org.mozilla.firefox
Date: 2025-11-25 14:45:25 +0000
It is using the 24.08 runtime but:
$ flatpak install --user org.freedesktop.Platform.VAAPI.nvidia//24.08
error: No remote refs found for ‘org.freedesktop.Platform.VAAPI.nvidia//24.08’
You may be shit out of luck until the Firefox Flatpak updates its base-runtime.