Most Firefox requests to Wikimedia sites say Windows.[1]

[1] https://analytics.wikimedia.org/dashboards/browsers/#all-sit...

> I suspect that most remaining FF users are running it on Linux desktop.

Personally, I run it everywhere: on my phone, on my Windows desktop, on my Linux desktop, on my Linux netbook. Not even because of any particularly strongly held stances - it's just a nice browser that I like and it runs pretty well everywhere (plus the devtools are the most usable for me).

That said, I'm fairly sure that the majority of Linux desktop users are also using Firefox, because it's typically the default browser in most distros.

I run as default on my mac.

used to run it as default on my android phone -- but ahh mozill doesn't care about it enough. pretty unstable