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. We understand this is frustrating, however 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.

Why am I locked out after one attempt? This can happen if multiple verification codes are requested in a short time. Only the most recent code is valid - entering an old one counts as a failed attempt. This triggers a 15-minute lockout for security.

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. Also ensure your inbox isn’t full, and check for typos in your email address. After waiting a few minutes, try requesting the code again.

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.

My verification code was rejected. What can I do?

If your verification code is not accepted:

1. Double-check that you're entering the most recent code sent to your email. Older codes will not work.
2. The code is case-sensitive. Make sure Caps Lock is off.
3. Try typing the code manually if copy/paste doesn’t work.
4. Avoid using autofill or browser extensions that may overwrite fields.

Still not working?

• Wait 15 minutes, then request a new code.
• Try signing in using a different browser or a private window.
• If the issue continues, contact Mozilla account support.

I no longer have access to the email on my Mozilla account.

If you can't access your original email address, Mozilla support cannot recover your account for privacy and security reasons.

You can create a new Mozilla account using a new email address. However, if you are signed in on another device, update your account email by following the path:

• Account Settings
• Manage Account
• Change Email before logging out

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• How to change or reset your Mozilla account password
• Mozilla account - Managing account data
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