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Auth0 vs Mozilla Firefox

Auth0 logo

Auth0

Technology

Secure access for everyone

From
Free
Rated
-
Full reviewWebsite
Mozilla Firefox logo

Mozilla Firefox

Technology

Fast, private & safe web browser

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Auth0 free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that; Mozilla Firefox no longer supported on Windows 8.1 and earlier versions (users must use Firefox ESR)
  • They diverge on capability: Auth0 covers Universal login, Mozilla Firefox covers Enhanced tracking protection.

Where they differ

Only the attributes on which Auth0 and Mozilla Firefox actually diverge.

Attributes where Auth0 and Mozilla Firefox differ
AttributeAuth0Mozilla Firefox
PlatformsWeb, iOS, AndroidWindows, macOS, Linux, iOS, Android
Founded20132004

Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated), category (Technology).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Auth0

  • Universal login
  • Social login
  • Multi-factor authentication
  • Passwordless
  • User management
  • Anomaly detection
  • Extensibility
  • Machine to machine

Only in Mozilla Firefox

  • Enhanced tracking protection
  • Private browsing
  • Customizable interface
  • Add-ons support
  • Cross-device sync
  • Built-in screenshot tool
  • Reader mode
  • Picture-in-picture

What people use each for

The jobs each tool is most often brought in to do.

Auth0

  • B2C authenticationnot Mozilla Firefox
  • B2B authenticationnot Mozilla Firefox
  • B2E authenticationnot Mozilla Firefox
  • API securitynot Mozilla Firefox
  • Mobile app securitynot Mozilla Firefox

Mozilla Firefox

  • Open-source web browser with privacy-focused designnot Auth0
  • Automatic tracking protection and ad blocking (2000+ data trackers blocked by default)not Auth0
  • Private browsing mode for anonymous web sessionsnot Auth0
  • Built-in password managernot Auth0
  • Multi-platform synchronisation across devicesnot Auth0
  • Developer tools and debugging capabilities for web developmentnot Auth0

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Auth0

  • Free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that
  • Advanced features like MFA and RBAC only available on paid Essentials tier and above
  • Ownership by Okta introduces risk that independent product roadmap may change

Mozilla Firefox

  • No longer supported on Windows 8.1 and earlier versions (users must use Firefox ESR)
  • No longer supported on macOS 10.14 and earlier versions (users must use Firefox ESR)

Pricing, plan by plan

Auth0

Free
  • FreeFree
    • Up to 25,000 monthly active users
    • Basic authentication
    • Email/password login
  • Essentials (B2C)$35/month
    • Unlimited MAUs beyond free tier
    • Multi-Factor Authentication
    • Role-Based Access Control
  • Professional (B2C)$240/month
    • All Essentials features
    • Advanced security
    • Custom branding

Mozilla Firefox

Free

No published plan breakdown. See the Mozilla Firefox review.

Which should you pick?

Choose Auth0 if

  • You need universal login.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want social login.
Auth0 review

Choose Mozilla Firefox if

  • You need enhanced tracking protection.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, iOS, Android.
  • You also want private browsing.
Mozilla Firefox review

Questions people ask

Is Auth0 or Mozilla Firefox better?
Neither clearly leads. Auth0 starts at Free and Mozilla Firefox at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Auth0 or Mozilla Firefox?
Auth0 starts at Free and Mozilla Firefox at Free.
Does Auth0 or Mozilla Firefox run on more platforms?
Auth0 runs on Web, iOS, Android. Mozilla Firefox runs on Windows, macOS, Linux, iOS, Android.
Can I use Auth0 for free?
Both have a free tier, so you can try either at no cost before committing.
What is Auth0 best used for?
Auth0 is most often used for b2c authentication, b2b authentication, b2e authentication, api security. Of those, b2c authentication and b2b authentication are not what Mozilla Firefox is typically brought in for.
What can Auth0 do that Mozilla Firefox cannot?
Auth0 covers Universal login, Social login, Multi-factor authentication, Passwordless. Mozilla Firefox covers Enhanced tracking protection, Private browsing, Customizable interface, Add-ons support.

Answered from the vendors’ own pages

Auth0: How much does Auth0 cost?

Auth0 has a Free tier for up to 25,000 monthly active users (MAUs). Paid plans start at $35/month (Essentials B2C) and scale to $240/month (Professional B2C) and higher for Enterprise. Pricing scales with MAU usage.

Source
Mozilla Firefox: How much does Firefox cost?

Firefox is free to download and use. No pricing tiers, subscriptions, or payment plans are offered for the standard browser.

Source
Auth0: Does Auth0 include Multi-Factor Authentication?

No. MFA, RBAC (Role-Based Access Control), and premium support are not included in the free tier and require upgrading to paid Essentials plans or higher.

Source
Auth0: Is Auth0 independent or part of a larger company?

Auth0 was acquired by Okta in May 2021 for $6.5 billion. It now operates as a subsidiary business unit within Okta, but maintains its own brand and operations.

Source
Auth0: Who should use Auth0 vs Okta?

Auth0 is developer-focused and serves customer identity use cases (B2C). Okta serves workforce identity (B2B) and has broader enterprise features. Auth0 now serves both markets post-acquisition but maintains its developer-friendly positioning.

Source
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