You can only add a third-party authentication app or other two-factor authentication method if you already have access to your Facebook account. If you can't access your Facebook account, …

If you're having trouble logging into your Facebook account, review these tips first. If you've turned on two-factor authentication, there are several ways you can get your security code or approve …

How two-factor authentication works on Facebook Set up Facebook login recovery codes Get security code for two-factor authentication to log into Facebook Using an app for two-factor …

Troubleshoot login with two-factor authentication on Facebook Use a security key to log into your Facebook account How Facebook uses your mobile phone number for two-factor …

Learn about two-factor authentication and how to manage it on Facebook.

Steps to receive a code for two-factor authentication: Open the Facebook app and tap the menu icon. Tap Settings & privacy. Tap Code Generator. Use the code to log into Facebook. If you …

Select either Authentication app (such as Google Authenticator or Duo Mobile) or Text message (SMS), then click Next. Follow the on-screen instructions for your chosen option.

Get help with using authenticator apps to securely log in to your Instagram account, including what they are and how to use login codes for account access.

Get security code for two-factor authentication to log into Facebook Using an app for two-factor authentication on Facebook Set up Facebook login recovery codes When and why to save …

You can only add a third-party authentication app or other two-factor authentication method if you already have access to your Facebook account. If you can't access your Facebook account, …