Download Zen Browser 1.22b

Zen Stable Release

Security
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-82/

New Features
- Updated to Freifox 155.0 and 155.0.1
- By using your Mozilla account, you can now sync your Spaces, Folders, Tabs, and much more between devices! This can be enabled in Settings > Sync > Sync your Spaces across devices.
- The chrome UI now has a better look and feel, implementing squircles and other design elements to make it more visually appealing.
- A new on-boarding experience has been added to help new users get started with the browser and its features.
- Creating a new Space is now faster and requires less animation wait time, making the process more efficient.
- Containers can now be reordered in Settings, and the new order is used wherever containers are listed.

Fixes
- Fixed live folders for GitHub issues not working with the new GitHub UI
- Fixed Zen preventing Linux systems from going to sleep after a long browsing session.
- Fixed arrow-key and Page Up/Down scrolling not working on some pages with embedded content from other sites.
- Fixed live audio streams such as internet radio stopping when playing in the background.
- Other bug fixes and improvements.

Changes
- Font size has been increased for the sidebar text, making it easier to read and navigate through tabs and spaces.
- Zen now uses firefox-portal-detection.com instead of detectportal.firefox.com to detect captive portals and check network connectivity, so network allowlists referencing the old domain need updating.
- PDFs smaller than the paper size can now be enlarged to fill the sheet when printing, by setting the scale above 100%.