[ciupicri]

Firefox has its own forks, by the way: GNU IceWeasel → IceCat, LibreWolf etc.

[xethos]

Fennec, for Android too. The unfortunate part is that it doesn't (by default, on F-Droid) use Firefox Beta - meaning custom extension packs can't be used

This matters for things like Redirector (www.reddit -> old.reddit), Greasemonkey (hckrnews dark theme), and (for my keyboard-equipped Android) Vimium