Google is a leader in The Forrester Wave™: Public Cloud Platforms, Q3 2026
cloud.google.com·4d ago
Cloud & Infrastructure
The New Stack·Jul 2·5 min read
Your social login buttons run on third-party cookies. FedCM doesn’t.
✦ Why It Matters
Engineers can adopt FedCM to enhance user privacy and comply with regulations while maintaining user-friendly login experiences.
Key Takeaways
- Implement FedCM to enhance user privacy in login flows.
- Reduce sign-up friction by using a single native prompt.
- Migrate to a CIAM platform like Ory for backend support.
- Monitor browser updates to stay ahead of cookie deprecation.
How It Works
FedCM operates by allowing a site to request an identity token through a single API call, navigator.credentials.get(). The browser then fetches account details from the identity provider (IdP) without exposing cookies to the requesting site.
This process includes showing a native sign-in prompt and passing a token back to the site upon user consent, effectively decoupling authentication from passive tracking.