Implementing SSO in Your App Using Firebase OIDC/SAML

Single Sign-On (SSO) has become a standard for modern applications, allowing users to log in using credentials from trusted identity providers such as Google Workspace, Okta, Azure AD, or other enterprise systems. Instead of managing separate usernames and passwords, SSO provides a seamless and secure authentication experience, improving both user convenience and application security.

Firebase Authentication makes implementing SSO much easier by supporting industry-standard protocols like OIDC (OpenID Connect) and SAML (Security Assertion Markup Language) out of the box. In this guide, we’ll explore how to configure both OIDC and SAML providers in Firebase, integrate them into your application, and deliver a smooth, secure login experience for your users.