UPDATE: On July 22, 2024, the Privacy Sandbox initiative announced a new path focused on elevating user choice, instead of third-party cookie deprecation. The change in Privacy Sandbox direction does not impact Google Identity Service’s investment in FedCM. We see FedCM as valuable for improving the privacy, security and user experience of federated sign-in experiences independently from any changes to third-party cookies. The ongoing migration to the FedCM API will continue as scheduled. If you are using GIS One Tap or Automatic Sign-in on your website, please be aware of the migration timeline below.
If you need more time to verify FedCM functionality on your site and make changes to your code, you can temporarily exempt your traffic from using FedCM until February 2025.
Chrome is phasing out support for third-party cookies next year, subject to addressing any remaining concerns of the CMA. A relatively new web API, Federated Credential Management (FedCM), will enable sign-in for the Google Identity Services (GIS) library after the phase out of third-party cookies. Starting in April, GIS developers will be automatically migrated to the FedCM API. For most developers, this migration will occur seamlessly through backwards-compatible updates to the GIS library. However, some websites with custom integrations may require minor changes. We encourage all developers to experiment with FedCM, as previously announced through the beta program, to ensure flows will not be interrupted. Developers have the ability to temporarily exempt traffic from using FedCM until Chrome enforces the restriction of third-party cookies.
This update is for all GIS web developers who rely on the Chrome browser and use:
As part of the Privacy Sandbox initiative to keep people’s activity private and support free experiences for everyone, Chrome is phasing out support for third-party cookies, subject to addressing any remaining concerns of the CMA. Scaled testing began at 1% in January and will continue throughout the year.
GIS currently uses third-party cookies to allow users to sign up and sign in to websites easily and securely by reducing reliance on passwords. The FedCM API is a new privacy-preserving alternative to third-party cookies for federated identity providers. It allows Google to continue providing a secure, streamlined experience for signing up and signing in to websites. Last August, the Google Identity team announced a beta program for developers to test the Chrome browser’s new FedCM API supporting GIS.
Partners who offer GIS’s One Tap and Automatic Sign-In features will automatically be migrated to FedCM in April. For most developers, this migration will occur seamlessly through backwards-compatible updates to the GIS JavaScript library; the GIS library will call the FedCM APIs behind the scenes, without requiring any developer changes. The new FedCM APIs have minimal impact to existing user flows.
Some websites with custom integrations may require minor changes, such as updates to custom layouts or positioning of sign-in prompts. Websites using embedded iframes for sign-in or a non-compliant Content Security Policy may need to be updated. To learn if your website will require changes, please review the migration guide. We encourage you to enable and experiment with FedCM, as previously announced through the beta program, to ensure flows will not be interrupted.
If you are using GIS One Tap or Automatic Sign-in on your website, please be aware of the following timelines:
Once the Chrome browser restricts third-party cookies by default for all Chrome clients, the use of FedCM will be required for partners who use GIS One Tap and Automatic Sign-In features.
✅ Be aware of migration plans and timelines that will affect your traffic. Determine your migration approach. Developers will be migrated by default starting in April.
✅ All developers should verify that their website will be unaffected by the migration. Opt-in to FedCM to test and make any necessary changes to ensure a smooth transition. For developers with implementations that require changes, make changes ahead of the migration deadline.
✅ For developers that use Automatic Sign-In, review the FedCM changes to the user gesture requirement. We recommend all automatic sign-in developers migrate to FedCM as soon as possible, to reduce disruption to automatic sign-in conversion rates.
✅ If you need more time to verify FedCM functionality on your site and make changes to your code, you can temporarily exempt your traffic from using FedCM until February 2025.
To get started and learn more about FedCM, visit our developer site and check out the google-signin tag on Stack Overflow for technical assistance. We invite developers to share their feedback with us at gis-fedcm-feedback@google.com.
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