One of the best and most important add-ons to have on both Firefox PC and Android. Extremely secure password manager that stores your logins and notes in a locked vault that from what I've read is impossible to be compromised. I have all my private passwords and notes secured with Bitwarden and I use it on every device I have. The autofill feature is absolutely brilliant and makes life much easier. The ability to lock the app with a pin code for easy access. Ability to add logins and notes not just passwords. On top of all that it's absolutely free to use which alone is insanely generous and good to have. This app deserves all the love and appreciation.