Two-step authentication adds extra security by making it harder for someone else to log in to your account, especially if they steal your password.

When you enable two-step authentication, when someone attempts to log in to your account with your password, Firefox will also ask for a verification code from an authentication application for proof that it’s really you.

How do I enable two-step authentication?

Step one

Before you get started, download one of the following authentication applications:

Step two

Then follow these steps to set up two-step authentication in Firefox:

Click the menu button Options . Preferences . In the Sync panel, click Manage account. Expand the Two-step authentication section by clicking Enable… . Open the authentication app of your choice. Use the app to take a photo of the QR code, or click Can’t Scan Code to display a code to enter into the app. Enter the code generated by the app into the Firefox Accounts Two-step authentication section. Download or print the recovery codes and keep them in a safe place in case you lose access to your authentication application.

The setup of your two-step authentication is now complete!