Zen Browser key facts
Last updated- Legal entity
- Zen Browser Project
- Headquarters
- Spain (ES)
- Ownership
- Independent
- Infrastructure
- Mozilla (for Sync)
- Open source
- No
- US Cloud Act exposure
- Low (no US parent)
- Replaces
- Google Chrome, Microsoft Edge, Apple Safari
About Zen Browser
Zen Browser is a community-driven, open-source web browser built as a fork of Firefox. It focuses on modernizing the browsing experience through productivity-oriented features specifically designed for desktop environments. Unlike mainstream browsers, Zen emphasizes a clean, 'Zen' interface by natively supporting vertical tabs, workspaces, and a highly customizable 'Compact Mode' that minimizes visual clutter. As it is built on the Gecko engine (Firefox), it inherits the privacy and security foundations of Mozilla's codebase, including support for Firefox Sync and the vast ecosystem of Firefox extensions. The project is transparent, with its entire source code available for audit on GitHub, catering to users who prioritize digital sovereignty and open-source software over commercially-driven browsers.
Alternative to
Hosting & Security
Mozilla (for Sync)