1.21.5b-ls64

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21.5b-ls64/index.html

LinuxServer Changes:

Full Changelog: 1.21.4b-ls63...1.21.5b-ls64

Remote Changes:

Zen Stable Release

Security

• https://www.mozilla.org/en-US/security/advisories/mfsa2026-62/

New Features

• Updated to Firefox 152.0.4

Fixes

• Fixed overflowing addons not having context menus (#14382)
• Fixed copy, paste, undo, redo, and similar keyboard shortcuts not working inside macOS system dialogs such as the Save and Open panels.
• Other bug fixes and improvements.

1.21.5b-ls63

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21.5b-ls63/index.html

LinuxServer Changes:

No changes

Remote Changes:

Zen Stable Release

Security

• https://www.mozilla.org/en-US/security/advisories/mfsa2026-62/

New Features

• Updated to Firefox 152.0.4

Fixes

• Fixed overflowing addons not having context menus (#14382)
• Fixed copy, paste, undo, redo, and similar keyboard shortcuts not working inside macOS system dialogs such as the Save and Open panels.
• Other bug fixes and improvements.

1.21.4b-ls63

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21.4b-ls63/index.html

LinuxServer Changes:

Full Changelog: 1.21.1b-ls62...1.21.4b-ls63

Remote Changes:

Zen Stable Release

New Features

• Updated to Firefox 152.0.2 and 152.0.3
• Added 'Edit pinned tab' context menu item to manually set a pinned tab's URL
• Added 'Add Route for Domain' context menu item to quickly add a tab's domain to the Space Routing settings

Fixes

• Prevent sidebar from flickering when moving a tab (#14131)
• Full-screening while on a glance tab will now expand the glance tab to a normal tab (#11766)
• Fixed space routing tabs opening in background when it should be in foreground (#14183)
• Other minor bug fixes and improvements.

1.21.3b-ls62

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21.3b-ls62/index.html

LinuxServer Changes:

No changes

Remote Changes:

Zen Stable Release

New Features

• Updated to Firefox 152.0.1

Fixes

• Fixed transparency not working after updating to 1.21.2b (#14259)
• Fixed frequent crashes affecting users with Intel Raptor Lake processors
• Fixed an issue on macOS where choosing a PDF option, such as "Save as PDF", from the system print dialog would send the job to your printer instead of saving a file.
• Other minor bug fixes and improvements.

1.21.2b-ls62

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21.2b-ls62/index.html

LinuxServer Changes:

No changes

Remote Changes:

Zen Stable Release

Security

• https://www.mozilla.org/en-US/security/advisories/mfsa2026-57/

New Features

• Updated to Firefox 152.0
• Improved support for more advanced cursor movement commands, including those relating to paragraph boundaries, on macOS.
• On Windows and Linux, you can now copy links via the tab context menu by right-clicking a tab and selecting Share > Copy Link, making it easy to copy a link without switching to the tab first.

Fixes

• Fixed space routing overriding tabs with an explicit container (#14242)
• Fixed background tabs focusing on routed tabs (#14165)
• Fixed opening glance on links while selecting text in links (#8391)
• Other minor bug fixes and improvements

Changes

• Site zooming via keyboard or mouse now offers more zoom levels in smaller increments than before.
• When a PDF or other file that Zen opens directly finishes downloading, it now opens in a background tab if you've switched tabs or closed the original page.

1.21.1b-ls62

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21.1b-ls62/index.html

LinuxServer Changes:

Full Changelog: 1.20.2b-ls61...1.21.1b-ls62

Remote Changes:

Zen Stable Release

Fixes

• Fixed duplicate bookmarks appearing when re-opening a window in MacOS (#9540)
• Fixed freezes when switching spaces on certain occasions (#14110)
• Improved performance for switching between tabs
• Other minor bug fixes and improvements

1.20.2b-ls61

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.20.2b-ls61/index.html

LinuxServer Changes:

Full Changelog: 1.20.2b-ls60...1.20.2b-ls61

Remote Changes:

Zen Stable Release

Security

• https://www.mozilla.org/en-US/security/advisories/mfsa2026-54/

New Features

• Updated to Firefox 151.0.3
• Boosts now support a dark mode UI based on your system dark mode setting.

Fixes

• Fixed auto focus for new windows not working. (#12112)
• Fixed desktop shortcuts showing zen as 'Nightly'. (#13745)
• Other minor bug fixes and performance improvements.

1.21b-ls61

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.21b-ls61/index.html

LinuxServer Changes:

No changes

Remote Changes:

Zen Stable Release

New Features

• Updated to Firefox 151.0.4
• Added 'Space Routing', a new feature that allows you to route links to a specific Space. To get started, click on the three dots in your Space name and click on 'Space Routing Settings'.

Fixes

• Fixed extension-opened tabs not being created with the correct container (#14100)
• Fixed a bug with the Boosts editor having the wrong theme colors (#14099)
• Improved overflowing space icons being inaccessible and improved the feeling when hovering over them (#13747)
• Other minor bug fixes and improvements

1.20.2b-ls60

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.20.2b-ls60/index.html

LinuxServer Changes:

Full Changelog: 1.20.1b-ls59...1.20.2b-ls60

Remote Changes:

Zen Stable Release

Security

• https://www.mozilla.org/en-US/security/advisories/mfsa2026-54/

New Features

• Updated to Firefox 151.0.3
• Boosts now support a dark mode UI based on your system dark mode setting.

Fixes

• Fixed auto focus for new windows not working. (#12112)
• Fixed desktop shortcuts showing zen as 'Nightly'. (#13745)
• Other minor bug fixes and performance improvements.

1.20.1b-ls59

CI Report:

https://ci-tests.linuxserver.io/linuxserver/zen/1.20.1b-ls59/index.html

LinuxServer Changes:

Full Changelog: 1.19.13b-ls58...1.20.1b-ls59

Remote Changes:

Zen Stable Release

New Features

• Updated to Firefox 151.0.2
• You can now type New Boost in the urlbar to quickly create a new boost for the current site!

Fixes

• Fixed pressing u duplicating tabs. (#13851)
• Fixed video controls going under the screen when in fullscreen mode. (#10594)
• Fixed boosts not working for certain websites. (#13844)
• Fixed an issue on macOS where smart cards and security keys could fail to load certificates automatically
• Other minor bug fixes and performance improvements.