What if I'm locked out of Two-Step Authentication?

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Two-step authentication adds extra security to your Firefox account by making it harder for someone else to log in to your account. If you’ve gotten locked out of your two-step authentication login, you can use a recovery code to securely regain access to your account. Alternatively, if you have a device still signed in to your account, you can use that device to disable two-factor authentication so you can log in to your account without two-factor authentication.

I have my two-step authentication device

  1. Go to https://accounts.firefox.com and login.
  2. Enter the authentication code from your authentication application.
  3. After login, expand the Two-step authentication section by clicking Change.
  4. Click Disable.

I lost my two-step authentication device but I have another logged-in device.

If you’re locked out of your account but have a device still logged in via two-factor authentication, you can use that device to disable two-factor authentication:

  1. Go to https://accounts.firefox.com and login.
  2. Click Disable in the row that says Two-step authentication.
If you don't have access to your logged-in devices and lost your two-step authentication devices, continue to the sections below.

I lost my two-step authentication device but I have a recovery code.

  1. Go to https://accounts.firefox.com and login.
  2. If you are prompted for a two-step authentication code, click Use recovery code and enter one of your saved recovery codes.
    • If you don't remember saving your recovery code, check if your file was downloaded and saved with the filename <your_email> Firefox Recovery Codes.txt.
  3. Expand the Two-step authentication section by clicking Change.
  4. Click Disable.

I lost my two-step authentication device, can’t find recovery codes and don’t have a logged-in device.

Unfortunately, deactivation of two-step authentication is not supported and you will not be able access your existing Sync data. You can however create a new account with a different email address to begin syncing again.

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