Hi, To update Firefox to the the latest version, please check out:

• Update Firefox to the latest release (desktop Firefox)
• Update to the latest version of Firefox for Android

This seems to be about Firefox on Linux.

The Firefox UA used to post this thread. Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0

It appears you are using a Ubuntu package build. If you are not able to get any >Firefox package updates in your package manager then you distro is likely EOL in software package updates support.

You then need to update your distro to a currently supported version or use the Firefox Linux tarball from https://www.firefox.com/download/all/ as it gets internal Firefox updates from Mozilla like the Windows/macOS builds do.

If you have 32-bit Linux then use the Firefox 140 ESR as 32-bit Linux support was dropped starting Firefox 145.0 and later.