Zen Browser
Welcome to a calmer internet observed · 2026-08-28
Health v2 · maintenance only
87/100
- Activity 99
- Release rhythm 86
- Longevity 63
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 3
- age_days: 889
- days_rel: 14
- days_push: 7
- n_releases_24m: 152
Adoption not part of the score
44104 stars · 1729 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Zen Browser is a free, open-source, Firefox-based desktop web browser focused on privacy and productivity. It adds features like Workspaces, Compact Mode, Glance, and Split View on top of the Firefox engine, with live CSS customization and a mods registry.
Use cases
- browse the web with a privacy-focused Firefox fork
- organize tabs into workspaces for separate projects
- view two tabs side by side with split view
- customize the browser UI with live CSS editing
- maximize screen space with a compact auto-hiding tab bar
- sync tabs and spaces across devices via a Mozilla account
When to choose
- you want Firefox compatibility with a more modern, productivity-oriented UI
- you care about privacy and open-source licensing (MPL-2.0)
- you need workspaces, split view, or heavy UI customization
- you use Windows, macOS, or Linux desktop
When to avoid
- you need mobile browser support
- you require enterprise support or long-term stability guarantees
- you depend on Firefox features Zen may lag behind on during updates
Facets
application · maturity active
security privacy privacy developer-tools web-development cross-platform windows cross-platform firefox-based browser tab-management workspaces split-view customization open-source linux macos desktop
6 sources
- readme: https://github.com/zen-browser/desktop · fetched 2026-08-28 · a0f1da24dcbe
- homepage: https://zen-browser.app · fetched 2026-08-29 · c3719ca7f98c
- site_page: https://zen-browser.app/about · fetched 2026-08-29 · 356115b5076d
- site_page: https://docs.zen-browser.app · fetched 2026-08-29 · 5ebc0091808e
- site_page: https://docs.zen-browser.app/ · fetched 2026-08-29 · 5ebc0091808e
- site_page: https://zen-browser.app/release-notes · fetched 2026-08-29 · afd6f60adcd2
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| zen-browser/desktop | main | 87 |
| zen-browser/www | frontend | 68 |
For agents
markdown · JSON · MCP: product_card(name="zen-browser/desktop")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem