![]() The reason you're having issues using your FIDO U2F security key on Firefox with your Google account is because while credentials registered using the FIDO U2F API can be validated using either the FIDO U2F API or the newer WebAuthn API, the reverse is not true. TOTP 2FA can only be used as a secondary/backup 2-factor authentication method on Google accounts, and you must set up 2-factor authentication with one of the three supported primary 2FA methods (I suggest using your FIDO U2F security key - see below for instructions on getting that working) prior to being able to set up and use TOTP as a 2FA method with your Google account. How can I get this TOTP key and activate TOTP 2FA in my Google account? I do have a device that supports TOTP authentication: I just need the secret key or the QR-code. ![]() To activate this Google documents a process where I go to the settings of their Gmail app on an Android or IOS smartphone, but I have neither. That leaves no options in that list, but to my knowledge, Google also supports TOTP authentication. The option to activate a security key just silently fails. I am not looking for SMS-codes (considered deprecated as a security measure) or Google-prompt I would like a full 2FA solution.Ī security key is an option, but apparently, I can't use it because Google doesn't offer WebAuthn (which my browsers support), but offers the older FIDO U2F standard instead. When I try to enable 2FA, Google offers me three options: ![]() ![]() I am trying to enable two-factor authentication (2FA) on a Google account, but I'm running into a dead end trying to activate it.
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