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Firefox is ending support for Windows 7, 8 and 8.1, and users are urged to switch to Linux
(www.pcgamer.com)
This is a most excellent place for technology news and articles.
Half od my customers still use Win 7, a few on XP, some on8 for some reason, most on 10.
Then there's maybe 10% on linux.
Most industries are adverse to change and if you can just patch and continue then fine, especially if you don't need internet like with a POS.
If you don’t need the internet then why would you care about not having the latest Firefox?
It’s fine to use old unsupported OSes as long as they’re isolated from other machines and cannot access the outside world (and you’re careful).
But nobody should be unironically using Firefox on windows 7. Windows 7 has been EOL for over half a decade at this point.