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Firefox administrator reference

Firefox 144 release notes for enterprise admins

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Firefox 144

Released 14 October 2025.

These changes apply to Firefox 144 and Firefox ESR 140.4.0 unless explicitly stated.

New in Firefox 144

  • GenerativeAI: Configure generative AI features. Chatbot is the only option that applies to the ESR.
  • VisualSearchEnabled: Enable or disable visual search. Does not apply to the ESR.

New in Firefox ESR 140.4.0

  • GenerativeAI: Configure generative AI features. Only the Chatbot option is available on the ESR.

Changes

  • Preferences: Allow setting the security.webauthn.always_allow_direct_attestation preference.

Fixes

  • Some print options were still shown when printing was disabled. (bug 1889569)
  • Windows Kerberos authentication with Extended Protection did not work with a SHA384 SSL certificate. (bug 1895277)

Notes

  • Firefox ESR 115 support for Windows 7/8 and macOS 10.12, 10.13 and 10.14 is extended to March 2026.