Compare software

WaterfoxGNU IceCat
Free

Free and open source under MPL-2.0. Development is funded by donations.

 Free

Free software from the GNU Project with no paid tier.

Windows, macOS, Linux Linux
  • Telemetry and data collection are removed from the build, not just disabled in preferences
  • Ad blocking and private, anonymised DNS are on by default
  • Contains only free software, with no nonfree add-on recommendations
  • LibreJS blocks nonfree JavaScript
  • One small team tracking Mozilla, so security updates land after Firefox's
  • The project has changed hands in the past, which matters if you are picking it on trust
  • Blocking JavaScript breaks many modern sites until you allow scripts
  • Builds are distributed from a third-party download page
Downloadable app Downloadable app
Open source Open source
License: MPL-2.0 License not stated
No account needed No account needed
Needs internet Not stated if it works offline

Checked September 21, 2026

Checked September 23, 2026

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