Download Zen Browser 1.22.2b

Zen Stable Release

Security
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-90/

New Features
- Updated to Firefox 156.0
- Zen on macOS can now be set to open automatically when the computer starts up, from the Startup section of Settings.
- Added the following actions to the command bar: 'Expand current view', 'New space', 'Reopen closed tab', 'Duplicate tab', 'Reset pinned tab'.

Fixes
- Fixed high-sample-rate FLAC audio in MP4 failing to play on certain video sites.
- Fixed subtitles not appearing in the Picture-in-Picture window when they are turned on in the video player after the window has already opened.
- Fixed the find bar becoming permanently unavailable in a tab after reversing the panes in Split View.
- Fixed some sites failing to load when DNS over HTTPS is enabled and the site does not support HTTPS.
- Fixed an issue on Windows where Zen could block an auto-hiding taskbar from showing.
- Fixed the sidebar not hiding if the urlbar is open when compact mode is enabled. (#13196)
- Fixed an issue where cross-space tab routing would freeze the browser under certain conditions. (#14171)
- Fixed cross-device sync losing certain tabs if they are created too quickly (#15380)
- Fixed certain issues related to live folders appearing as active even when they are no tabs showing in them.
- Other bug fixes and improvements.

Changes
- Zen's built-in PDF viewer now starts up to 45% faster.
- Improved memory and CPU usage when Zen displays large JPEG images scaled down to fit a page.
- On Windows devices with ARM64 processors, WebRTC video calls may now use hardware H264 decoding instead of falling back to software.
- Live Folders will now ignore archived issues and pull requests.
- Improved the look and feel of drag-and-drop interactions for tabs. Specially on MacOS, where the drag-and-drop behavior is now done natively.
- Folders will now fully-expand if all tabs within them are visible. Folder animations has also been improved for smoother transitions.