If you use Android, Firefox on Android is also really nice because it can sync with your desktop and also has about a dozen extensions (ublock origin, dark reader, etc.)[1].
And then Iceraven[2] is even better, because it's just Firefox for Android, but with several hundred extensions enabled and a few other annoyances fixed.
(A few years ago all extensions were enabled on Firefox on Android, but a few didn't work so they decided to limit it to a very short list of allowed ones. And then they let that list stagnate for years. Kind of a dick move IMO.)
If you use iOS, then "Firefox" is really just a skin on Safari, so no extensions (this is entirely Apple's fault), but the sync features work, so that's something if you use Windows or Linux.
[1]: https://addons.mozilla.org/en-US/android/search/?promoted=re...