Hi, Firefox Accounts (Fxa) support TOPT (Google authenticator etc) 2FA, which is pretty good, however it would be great if you could support Webauthn/FIDO2 (Yubikey etc). There was a Bugzilla bug for this, https://bugzilla.mozilla.org/show_bug.cgi?id=1464888 opened 4 years ago, however about a year ago it was closed wontfix because it "is not currently on our roadmap" Which seems like a really bad idea? Given that most security people, browsers and OSs are saying "passwordless is the future", and FIDO2 is how that will happen. And even passwordless aside, FIDO2 is a more robust and generally easier to use option than even TOTP apps