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Firefox ESRMomiji
Free

Free and open source; Mozilla offers optional paid professional support for organisations.

 Free

Free and open source under the MPL-2.0 licence.

Windows, macOS, Linux macOS
  • Long-term stable feature set for managed deployments
  • MSI and PKG installers plus group policy templates
  • Modern Firefox ESR engine on macOS 10.7 to 10.14
  • Supports 64-bit Macs back to Conroe and Merom processors
  • New features arrive later than in regular Firefox
  • Mainly aimed at organisations rather than home users
  • Hardware acceleration can be buggy and may need turning off
  • DRM video such as Netflix and Spotify needs an extra Widevine install
Downloadable app Downloadable app
Open source Open source
License: MPL-2.0 License: MPL-2.0
No account needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.