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HellFireZen Browser
Free

Free to download from the GitHub releases page.

 Free

Free and open source, funded by donations.

Linux Windows, macOS, Linux
  • Unmodified Firefox behaviour and appearance with compile-time optimizations
  • Build configuration and patcher script are published in the repository
  • Vertical tabs, workspaces and split view built in, no extensions needed
  • Firefox engine, so Firefox extensions and containers work
  • Builds only for x86_64 Linux; Windows support was dropped
  • License is not clearly stated in the repository metadata
  • Young project; interface changes between releases and bugs surface
  • A small team maintaining a Firefox fork is a real long-term risk
Downloadable app Downloadable app
Closed source Open source
License not stated License: MPL-2.0
No account needed No account needed
Not stated if it works offline Needs internet

Checked October 2, 2026

Checked September 21, 2026

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