If sign-in attempts on your Mozilla account are blocked and your account has been locked for security reasons, it means unusual activity was detected on your account. This security measure prevents access until we verify your identity. To proceed, we’ll send you an email to confirm it’s you trying to sign in or to report unfamiliar activity.

Verification E-mail

If your Mozilla account blocks a sign-in attempt, you will receive an email with a verification code. The email will include details about the attempt, such as the device type, location, IP address and time. If the activity looks familiar, enter the verification code from the email to confirm your identity.

I haven’t received the verification email. What should I do?

First, check your spam folder and filters to make sure it didn’t end up in the wrong folder. For other solutions, see I'm having problems confirming my Mozilla account. You can also contact the Mozilla account support team by completing this form, linked from the Contact Support button in the Still need help? block shown below.