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Zen BrowserOrion
Free

Free and open source, funded by donations.

 Free

Free to download and use. The software is closed source.

Windows, macOS, Linux macOS, Linux, iOS
  • Vertical tabs, workspaces and split view built in, no extensions needed
  • Firefox engine, so Firefox extensions and containers work
  • It is the only WebKit browser that runs extensions from all three major stores, and it ships with…
  • Young project; interface changes between releases and bugs surface
  • A small team maintaining a Firefox fork is a real long-term risk
  • The browser is closed source, the extension compatibility layer does not work for every add-on, and it is…
Downloadable app Downloadable app
Open source Closed source
License: MPL-2.0 License not stated
No account needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 21, 2026

Checked September 22, 2026

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