There has been a few updates in nos2x-fox (the Firefox add-on for signing Nostr messages, and fork of "nos2x") in the past month.

Some are:

- Configure your preferred relays

- Allow your authorization to sites last for 5 min, 1 hour or 8 hours (with possibility of revoking)

- Better display of the message you are signing

- Support for both hexa and nsec/npub format for your keys

- Many UI improvements and fixes

Install from Firefox Add-ons page: