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README
Zen Browser
Zen is a firefox-based browser with the aim of pushing your productivity to a new level!
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Website
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Documentation
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Release Notes
Firefox Versions
- Release - Is currently built using Firefox version 158.0!
- Twilight - Is currently built using Firefox version RC 158.0!
Contributing
If you'd like to report a bug, please do so on our GitHub Issues page and for feature requests, you can use GitHub Discussions.
Zen is an open-source project, and we welcome contributions from the community! Please take a look at the contribution guidelines before getting started!
Partners
Thanks to all the sponsors of Zen for their support and contributions, including:Top issues
#8932[META]: Performance, consumption and memory leaks198 comments · 2025-06-08#9727"ZenCP Isolated Web Content" process pegs all cores after media playback on MacOS44 comments · 2025-08-02#7110Default Browser issue44 comments · 2025-03-30#11161Extensions that take over/replace passkeys does not work42 comments · 2025-11-05#8396Most of rendering is blurry if window exceeds 4k resolution33 comments · 2025-05-18#10498Microsoft Entra Platform SSO on MacOS32 comments · 2025-09-23#11732Sidebar not hiding when in compact mode29 comments · 2025-12-26#10555Browser crashing on media playback as of 1.16.1b on Nvidia Wayland (VA-API)29 comments · 2025-09-26
Discussions
#16489Optional bottom-docked UI: Move address bar, navigation, tabs and controls to the bottom0 comments · 2026-11-08#16481Have essentials correspond to spaces or give each space it's own button and main page(s)1 comments · 2026-11-08#16479Please add a pause/resume button for downloads in the browser.0 comments · 2026-11-08#16471Convert a Space into a folder in another Space (like Arc)0 comments · 2026-11-07#16459Tab Snooze: hide a tab for a while and get it back later1 comments · 2026-11-07#16457What is the easiest way to do image search? What if we could directly paste image in the floating search bar?0 comments · 2026-11-07#16456Feature Requests from an Arc Browser User: Tidy Tabs, Mobile Sync, and Casting0 comments · 2026-11-07#16452Resizable Select Translations panel with scalable text0 comments · 2026-11-07
Latest release
Release build - 1.24.1b (2026-11-06) 1.24.1b 2026-11-06Zen Stable Release Security - https://www.mozilla.org/en-US/security/advisories/mfsa2026-123/ New Features - Updated to Firefox 159.0.1 - New grain options have been added to the theme picker. You can cycle through different grain effects by clicking on the circle inside the dial. Fixes - Fixed a command prompt window briefly appearing on Windows when Zen restarts to apply an update. - Fixed passkey sign-in failing on websites that share passkeys across related sites, such as Facebook and Instagram. - Fixed crashes on Windows that could occur with some antivirus or other security softwa