Firefox on Android is great IMO, fast, not power hungry and the extensions/features are awesome. I love not being bothered by ads, even on YouTube, and having videos play in the background.
Firefox for Android guzzles power like crazy, even slightly more than Chrome
You probably come out ahead if you load it up with a real adblocker though
Being able to browse with uBlock and Privacy Badger is a game changer for me. I basically don't use my mobile browser at all on iOS, and I don't use any social media or news apps either, so you can guess how useful the device is.. haha
Gratuitous data harvesting, and Edge in particular has gotten really spammy with Microsoft promos.
> Firefox
Very slow/power hungry for me, especially with extensions which I need for dark mode, adblocking and such.
> DuckDuckGo
Probably good?