Firefox extension no longer works without 1password account

Hi @atz, I have the classic extension installed in my browser and it still works to save/fill for me. However, the classic extension will no longer receive development updates so we do recommend upgrading to a membership and using our new extension.

With an active membership:
* 1Password 7 is included on any platform at no extra charge, so are all future upgrades.
* There's no complicated sync setup. Sign in to your account on any device, and your data is there.
* You can access your data whenever you need it, including when you're offline.
* Your membership also includes Travel Mode, data loss protection, two-factor authentication, and more.

https://support.1password.com/explore/membership/

Let us know if you have any further questions!