I’m unhappy with Firebase Authentication for enterprise SSO

If you’re unhappy with Firebase Authentication for enterprise SSO, that makes sense—Firebase Auth is solid for consumer auth and basic login flows, but it’s often awkward for enterprise identity needs like:

• SAML or OIDC federation with multiple IdPs
• Just-in-time provisioning and SCIM
• Group/role claims from the IdP
• Multi-tenant enterprise setups
• Advanced session controls and conditional access
• Audit/compliance requirements
• Centralized identity governance

Common alternatives

Depending on your stack and requirements, these are usually better fits:

1. Auth0 / Okta Customer Identity

Good when you want a managed auth platform with:

• SSO via SAML/OIDC
• Social + enterprise identity in one place
• Custom login flows
• MFA, adaptive auth, organization support
• Easier enterprise integration than Firebase

2. WorkOS

Best if you already have your own auth and just need enterprise features:

• SAML / OIDC SSO
• Directory sync (SCIM)
• Team/organization management
• Much simpler than building enterprise SSO yourself

3. Clerk

Good developer experience and modern app auth:

• Nice UI components
• Organizations, invitations, session management
• Enterprise SSO support, depending on plan/use case

4. Azure AD / Entra ID, Ping, OneLogin, JumpCloud

If your customers are very enterprise-heavy, these are often the actual IdPs you’ll integrate with. You still need an auth layer on your side, but these are important for compatibility testing.

5. Cognito

Possible if you’re already deep in AWS, but enterprise SSO can still be clunky compared with Auth0/WorkOS.

If you want to keep Firebase

You can sometimes keep Firebase for user sessions while delegating enterprise login to:

• Auth0
• WorkOS
• Custom OIDC/SAML broker service

Then exchange the external identity for a Firebase custom token. This works, but it adds complexity.

Practical recommendation

• If you need enterprise SSO as a product feature: look at WorkOS or Auth0
• If you need enterprise SSO and a better all-in-one auth platform: look at Auth0/Okta
• If you need developer-friendly app auth with orgs: look at Clerk
• If you already have Firebase and just need enterprise login: use an auth broker + Firebase custom tokens

If you want, I can help you choose based on:

1. your stack,
2. whether you need SAML vs OIDC,
3. whether you need SCIM, and
4. how much migration pain you can tolerate.