Access your add-ons with a Mozilla account

Firefox, Mozilla Account Firefox, Mozilla Account Last updated: 11/28/2023 35% of users voted this helpful

In Firefox version 57 and above, only extensions built using WebExtensions APIs will work. See Firefox add-on technology is modernizing and these Frequently Asked Questions for details.

The Mozilla Add-ons site is using Mozilla accounts for a more integrated experience across all Mozilla products and services (see this Mozilla blog for the background). Use your existing Mozilla account or create a new one to access your add-ons on

Upgrade from an Add-ons account to a Mozilla account

If you have an existing Add-ons account, you can upgrade to Mozilla accounts by signing in or registering with a Mozilla account that matches your Add-ons email address.

You can find instructions for signing in or registering below.

Sign in to an existing account

If you already have a Mozilla account, you can sign in to the Add-ons site.

  1. Go to the Add-ons site.
  2. Click Sign in.
  3. Enter your email address and password, then click Sign in.
  4. You will be redirected back to

Create a new account

If you’ve never had an Add-ons account or a Mozilla account, sign up for Mozilla accounts to get started with the Add-ons site.

  1. Go to the Add-ons site.
  2. Click Register.
  3. Enter your email address, password and age, then click Create account.
  4. You will receive a confirmation email from Firefox with a 6-digit confirmation code. Use it to confirm your account.
  5. You will be redirected back to

For more information, see Access Mozilla services with a Mozilla account.

Deleting your Mozilla account

Please see this article to learn how to delete your Mozilla account.

When you delete your Mozilla account, your account will also be deleted and all of its associated data is deleted with it. If you later create a new account using the same email address, no add-ons will be associated with it.

Before deleting your account, we recommend that you transfer any add-ons you have developed to a new owner. If you share add-on ownership with other accounts, your account will be removed from the ownership list once it has been deleted.

Frequently asked questions

What happens to my add-ons when I convert to a new Mozilla account?

You will have access to all your add-ons through your new Mozilla account.

Why do I want a Mozilla account?

A Mozilla account is the primary account system used by Firefox, most often used natively to synchronize Firefox services across multiple devices. Even if you don’t use Sync, many Firefox-related services will soon begin migrating over to simplify your sign-in process, making it easier for you to join new services.

Where do I change my password?

Once you have a Mozilla account, you can go to, sign in and click Change next to Password.

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