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Unable to enable Two-Factor authentication

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To enable Two-step authentication from within my Firefox account, I login to my Firefox account and move to Settings. On the security section I go to the Two-step authentication setup.

I scan the QR code with my Authenticator app, but the token I receive back isn't accepted. I tried various Authenticator apps (Google Authenticator, Microsoft Authenticator) with the same result. Also adding the QR code manually doesn't work.

To enable Two-step authentication from within my Firefox account, I login to my Firefox account and move to Settings. On the security section I go to the Two-step authentication setup. I scan the QR code with my Authenticator app, but the token I receive back isn't accepted. I tried various Authenticator apps (Google Authenticator, Microsoft Authenticator) with the same result. Also adding the QR code manually doesn't work.