LibreWolf is based on Firefox, so all of Firefox add-ons work properly. Also, Bitwarden is even recommended by the developers.
Password managers
We suggest that you use a more robust solution than the built-in password manager available in the browser:
- Bitwarden: open source password manager that allows for synchronization across multiple devices.
- KeePassXC-Browser: official browser plugin for the open source password manager KeePassXC.
Recommended Addons – LibreWolf
https://librewolf.net/docs/addons/#password-managers







How about IronFox?