Comment on Yubikey guide for Git Signing, SSH Auth, U2F 2FA, and 1Password (2017)parentComments−tialaramex7yAh, for sites using U2F rather than WebAuthn you may (depending on Firefox version) need to explicitly tell Firefox to emulate the old U2F APIs.https://support.yubico.com/support/solutions/articles/150000...https://blog.mozilla.org/security/2019/04/04/shipping-fido-u...My GitHub has two Security Keys registered via Firefox this way.
Comments
Ah, for sites using U2F rather than WebAuthn you may (depending on Firefox version) need to explicitly tell Firefox to emulate the old U2F APIs.
https://support.yubico.com/support/solutions/articles/150000...
https://blog.mozilla.org/security/2019/04/04/shipping-fido-u...
My GitHub has two Security Keys registered via Firefox this way.