Entra External ID vs Firebase Authentication

Learn how Entra External ID and Firebase Authentication differ in their key features like authentication, enterprise auth, security, user management and compliance, so you can decide which of these authentication providers is best for you.

Entra External ID

Secure customer and partner access to any application

Visit Entra External ID Read more

Details:

B2B
Yes
B2C
Yes
Open Source
No
Self-hosted
No

Firebase Authentication

Secure multi-platform authentication in under 10 lines

Visit Firebase Authentication Read more

Details:

B2B
Yes
B2C
Yes
Open Source
No
Self-hosted
No

Feature Comparison

Entra External ID offers broader feature coverage than Firebase Authentication, supporting 28 features compared to 22. Entra External ID fully covers machine to machine (m2m) authentication and extensibility, and both tools fully cover branding.

Passwordless Authentication

Entra External ID

Firebase Authentication

Social Connections

Entra External ID

Firebase Authentication

Passkeys

Entra External ID

Firebase Authentication

Long Lived Sessions

Entra External ID

Firebase Authentication

Session Management

Entra External ID

Admins can invalidate refresh tokens and sessions through the Microsoft Entra admin center and specify token lifetimes

Firebase Authentication

Multi-Language

Entra External ID

Firebase Authentication

Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages

	Entra External ID	Firebase Authentication
Passwordless Authentication
Social Connections
Passkeys
Long Lived Sessions
Session Management	Admins can invalidate refresh tokens and sessions through the Microsoft Entra admin center and specify token lifetimes
Multi-Language		Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages

Compliance Comparison

Firebase Authentication offers significantly broader coverage than Entra External ID, supporting 6 certifications and regulatory frameworks compared to 0 for Entra External ID.