Excellent addon, but with a number of quirks and auto-fill bugs, compared to the native Firefox password fill-in: Bitwarden does not seem to detect all the places it should add credentials, or add credentials whereas it shouldn't. Also fonts and UI design is not that great: credential proposal is with huge text, obscuring other fields of the screen, something critical on mobile/small screen space (open bug for the purpose, but nothing happens); but there does not seem to be intention of fixing this at the moment (open bug for a couple of years).

Had Firefox sync handling my passwords and switched to bitwarden due to the low security ... which was resolved after many years a couple of days after switching to bitwarden, see Bugzilla #1320222 :D

Still bitwarden has a good feature set, mass password handling via the vault (ie select multiple passwords) etc. Recommended