Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: firefox-beta 154.0b10 -> 154.0 https://repology.org/project/firefox/versions
attrpath: firefox-beta
Checking auto update branch...
No auto update branch exists
There might already be an open PR for this update:
- firefox: select ffmpeg by the libavcodec each browser prefers
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/554652"