What Zen is
Zen is a quieter browser: Firefox foundations, privacy-first defaults, and focus features like workspaces and glance previews for calmer multitasking.
What you can do with it
- Separate tasks into workspaces
- Preview tabs without switching
- Use split view for comparison
- Browse with tracking reduced
- Keep the Firefox extension ecosystem
Who it is for
- Privacy-focused daily browsers
- Users seeking focus over features
- Firefox ecosystem users wanting modern UI
What to watch out for
- Firefox forks trail Mozilla on security patch timing; check their cadence
- Strict defaults may break some sites
- Not AI-centric; features focus on focus
- Community project; feature churn possible
Pros & cons
✓ What we like
- Genuinely calmer browsing
- Firefox extensions supported
- Thoughtful focus features
! What to watch out for
- Patch timing behind Mozilla
- Occasional breakage
- No meaningful AI features
FAQ
Is it based on Firefox?
Yes, Firefox foundations with a redesigned interface.
Is it free?
Yes, open source and free.
Can I use my extensions?
Firefox extensions work; verify your specific ones.
Last reviewed: 2026-09-19
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