Otter browser

https://github.com/OtterBrowser/otter-browser

Ungoogled Chromium

The Android version https://github.com/macchrome/droidchrome/releases comes with customizable adblock filters e.g. easylist, I don't care about cookies, EasyPrivacy etc. that I'm no longer forced to put up with Firefox's jank just for some decent adblocking on my phone anymore.