Firefox just added addon support officially on mobile. All other firefox browsers that enabled them in the past do not differ in this regard anymore.

Focus and klar are the same with a diffrrent name: wtf firefox? It's a very lightweight, very fast browser which enhances privacy a little bit, especially locally.

Nightly is the developer version of firefox if you want to help firefox and discover bugs use it, you won't experience many bugs though. Unless you really use the latest features. There may be other bugs though, use at your own risk.

For the serious privacy minded person you should use mull or at least fennec. If mull is too hardened for you, you can soften it again by disabling the settings.

If it aint broke, don't fix it, and mull works very well. While it's nice to see alts becoming more widely available, it's still mull or bust in my book!

If Firefox focus Android has user-friendly tab management, it'll be my main browser. Its native ad blocker is 👍. 1 may say that there's Firefox Android + Ublock origin. But I <3 Firefox and I'm :) they have a native ad blocker.

Firefox Focus is an Android browser that's always in Private Browsing mode, and has tracker blocking and content blocking built-in. It does not have all of the advanced features of the regular Firefox app.

Firefox Nightly is the cutting-edge development version of Firefox. This is built from the latest codebase automatically on a nightly base, as the name implies. If you want the newest features ASAP and don't care about bugs or stability issues, this is the one for you. Personally I would recommend using Firefox Beta instead, which sits in the middle -- more tested than Nightly, more cutting-edge than regular Firefox.

Firefox Klar is the German-language version of Firefox Focus. I think the only technical difference is that it has telemetry disabled by default. (You can turn that off in Firefox Focus as well, under Settings > Privacy & Security).

Never heard of Iceraven before. Apparently it's a fork of Mozilla's development version of a new Android app codenamed Fenix. Hopefully someone else can chime in with more insight into these two.

Firefox focus also has the epic feature of not being able to add new bookmarks for some goddamn reason and also needing to close the app if the webpage doesn’t let you scroll up.