Firefox support for Windows 7, 8 and 8.1
Firefox support for Windows 7, 8 and 8.1 – Future Releases
With Firefox 115, users on Windows 7, Windows 8 and Windows 8.1 will automatically be moved to the Firefox Extended Support Release (ESR).
I understand why Firefox is doing this, they're not the only one. But I also understand why people would like to stay on older operating systems, particularly Windows 7.
Just a difficult situation all around
With this, Mozilla will have given more than 1.5 years of extra support compared to Chromium browsers. Supporting old operating systems has a development cost, and they put themselves at a disadvantage if they choose to support these old OSes for much longer.
People should really just update. Old, unsupported operating systems are unsafe to use.