PfP: Pain-free Passwords is a Firefox, Chrome, Opera and Edge password manager. Most passwords will be generated for a specific site and account from your master password whenever needed, these passwords are never stored on disk and can be recreated easily if data is lost. For passwords that cannot be changed for some reason, storing the password with the extension data is also supported. All extension data is safely encrypted. You can also omit the --private-key parameter, an unsigned ZIP file will be created then which can be uploaded to Chrome Web Store or Opera Add-ons.