# Zen Browser updates Every Zen Browser update in one feed — release notes, features and changes, straight from the source. 17 updates - ## [Zen Browser says Boost sharing is officially here]() Zen's account posted that you can share a Boost. Release notes through October 20 do not yet explain how a shared Boost is installed. 2026-10-29 - ## [Zen Browser adds Focus Mode on top of Boosts and Zap mode]() Zen Browser has added Focus Mode, building on its Boosts and Zap mode features, and says more performance improvements are on the way. 2026-10-23 - ## [Release notes for version 1.24b]() Zen Browser 1.24b ships an updated OneCRL list for compromised eMudhra certificates, plus sidebar, window and Windows crash fixes. 2026-10-20 - ## [Release notes for version 1.23.3b]() The release moves Zen to Firefox 158.0, adds a --space command line option and fixes memory leaks, a favicon crash and high contrast menus. 2026-10-15 - ## [Release notes for version 1.23.2b]() The update adds Library controls and fixes lost unloaded tabs, unsaved bookmarks and a startup memory leak. 2026-10-09 - ## [Release notes for version 1.23.1b]() The Library gains a closed-tab filter and clearing controls, while fixes address sidebar opacity and failed macOS downloads. 2026-10-06 - ## [Release notes for version 1.23b]() Zen Browser 1.23b adds a Library for history and downloads, moves to Firefox 157.0, and fixes slow startups with many tabs open. 2026-10-01 - ## [Release notes for version 1.22.3b]() Zen Browser 1.22.3b moves to Firefox 156.0.1, adds tab and folder search to the command bar, and fixes several Windows and macOS bugs. 2026-09-23 - ## [Release notes for version 1.22.2b]() Zen 1.22.2b moves to Firefox 156.0, adds macOS startup launch, and fixes Split View, sync, and sidebar bugs. 2026-09-16 - ## [Release notes for version 1.22.1b]() Zen Browser 1.22.1b adds cross-device tab sync and shareable links for Spaces, plus battery and scrolling performance fixes. 2026-09-12 - ## [Release notes for version 1.22b]() Version 1.22b adds cross-device Spaces sync via Mozilla accounts, plus a redesigned chrome UI, new onboarding, and several bug fixes. 2026-09-03 - ## [Release notes for version 1.21.16b]() If you encounter any issues, please report them on the issues page. Thanks everyone for your feedback! 2026-08-27 - ## [Release notes for version 1.21.15b]() If you encounter any issues, please report them on the issues page. Thanks everyone for your feedback! 2026-08-19 - ## [Release notes for version 1.21.14b]() If you encounter any issues, please report them on the issues page. Thanks everyone for your feedback! 2026-08-13 - ## [Release notes for version 1.21.13b]() If you encounter any issues, please report them on the issues page. Thanks everyone for your feedback! 2026-08-07 - ## [Release notes for version 1.21.12b]() If you encounter any issues, please report them on the issues page. Thanks everyone for your feedback! 2026-08-07 - ## [Release notes for version 1.21.11b]() If you encounter any issues, please report them on the issues page. Thanks everyone for your feedback! 2026-08-05 [Open Zen Browser updates on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/updates/zen-browser