I’ve been using Consent-O-Matic which works pretty well but built into the browser? Wow.
It’s so unfortunate that Firefox on Android, for some reason, never worked well with password managers (as I understand it, it doesn’t support the APIs that Android has for them). Sometimes it’ll trigger the manager, more often, it won’t. Infuriating and a deal breaker for me.
I’ll give it another go, maybe this has been improved recently.
Edit gave it another crack, gosh, it actually works now!
I use the firefox password manager personally. Not sure if that makes me an idiot or not but it works well and I trust mozilla.
How do you mean?
I click into a password field, I get a “Fill with KeepassDX”-button above the keyboard, I press that, unlock the database, I’m done and it autofills. You just need to select the Keepass-app of your choice as the password-autofill app in the Android settings, but that’s independent of your browser choice anyways.