Hi Two-step authentication adds extra security to your Mozilla account by making it harder for someone else to sign in to your account. '''If you have a device still signed in to your account''', you can use that device to disable two-factor authentication, so you can sign in to your account without two-step authentication. You can use that device to disable two-step authentication: * Go to https://accounts.firefox.com and sign in. * Under Security, click the Disable button next to Two-step authentication. * Click the Disable button in the Disable two-step authentication prompt. More info [[Set up two-factor authentication on your Mozilla account]] [[What if I'm locked out of Two-Step Authentication?]]