How about using a password manager? I think KeePassXC is useful with its keyboard shortcuts.
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
It is a good idea to subscribe to the LibreWolf community!
!librewolf@programming.dev