What is third-party sign-in on a computer, and how does it work in Chrome?

Third-party sign-in in Google Chrome allows you to log in to websites and apps using an existing account from another service instead of creating a new username and password.

Third-party sign-in is a type of federated sign-in that allows you to log in with an identity service, instead of creating unique login credentials for each individual website you visit. If you allow third-party sign-in prompts, then as you browse the web, you may receive dialogues that ask if you want to sign in with an identity service.

You can sign into websites with Chrome through an identity service of your choice. An identity service stores and manages your sign-in information and identity across the web per your permission.

For example, when you visit a website, you may see options like “Sign in with Google,” “Sign in with Facebook,” or “Sign in with Apple.” These are third-party sign-in options.

When you choose one of these options, Chrome redirects you to the selected provider’s login page. After you enter your credentials and grant permission, the provider shares limited information, such as your name or email address, with the website. This allows you to access the service without creating a separate account.

Using third-party sign-in can save time and reduce the number of passwords you need to remember. It also lets you sign in quickly across multiple devices if you are already logged into that provider in Chrome.

However, it is important to understand the permissions you grant. Some websites may request access to additional information. Always review what data is being shared before accepting.

You can manage these sign-in permissions in your account settings. For example, in your Google Account, you can review and remove apps or websites that have access to your data.

Manage third-party sign-in prompts

To select your third-party sign-in prompt preferences:

1. On your computer, open Chrome.
2. At the top right, select More   Settings.
3. On the left, select Privacy and security  Site settings.
4. Under 'Content', select Additional content settings  Third-party sign-in.
5. Select to show or block sign-in prompts:
   • Sites can show sign-in prompts from identity services: If you enable 'Sign in automatically', you won't need to confirm before you log in to a website with your identity service. Learn how to sign in to sites and apps automatically.
   • Block sign-in prompts from identity services: If you block this feature, Chrome won't show sign-in prompts through your identity service. The website that you visit or your identity service can still show you similar prompts. You can still log in with your identity service through the typical sign-in buttons or your username and password.

Related resources

• Manage your protected content settings
• Delete, allow and manage cookies in Chrome
• Manage passwords

Additionally, Chrome may offer to save your login details securely using its password manager, helping you manage access more easily.

In summary, third-party sign-in in Chrome provides a convenient way to access websites using existing accounts, but it requires careful attention to privacy and permissions.