Firefox for Android straight up sucks. Sorry but it's true. It's heavy and slow with a bad ui. It basically has one and only one benefit. Add-ons. That's it. It's even worse on tablets. It's basically the same app but bigger. I bet Android users make up most of Firefox mobile users but they can't make a proper app.
Hey it's my first time interacting with a mastodon user on Lemmy. Wonders of the fediverse. If you live in the EU it's about to get better because they won't be held back by webkit anymore. Unfortunately only in the EU. So now they'll have to make two apps for iOS.
Edit: I forgot to add. Every web browser on iOS is basically just a skin on top of webkit because Apple doesn't allow it.