Description of problem: In Firefox session, in pages about:plugins and about:addons the version of GMP openh264 is reported as "system-installed" instead of a numbered version, currently 2.3.0.

$ dnf --installed list *openh264 | sed 1d
gstreamer1-plugin-openh264.x86_64      1.20.3-1.fc37      @fedora-cisco-openh264
mozilla-openh264.x86_64                2.3.0-1.fc37       @fedora-cisco-openh264
openh264.x86_64                        2.3.0-1.fc37       @fedora-cisco-openh264

How reproducible: in page about:plugins, while component mozilla-openh264 is

- installed:
File: system-installed
Path: /home/<user>/.mozilla/firefox/(...).default-release/gmp-gmpopenh264/system-installed
Version: system-installed

- not installed:
File: {$pluginLibraries}
Path: {$pluginFullPath}
Version: {$version}