Releases
1.17b
Release build - 1.17b (2025-10-21)
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Zen Stable Release
Security
Various security fixes
New Features
Updated to Firefox 144.0
New unified panel to show site permissions, security, add-ons, quick actions and more to de-clutter the address bar.
Added toolbar button to quickly toggle compact mode
Improved glance animations to make it feel like the element is being lifted off the page
Added an urlbar button to quickly copy the current page url
Zen will now start using the new MacOS Tahoe look and feel
The operating system accent color will now be used instead of the default orange color when there's no browser theme applied
Fixes
Fixed the urlbar not opening in fullscreen mode
Fixed performance for macos users when using transparency on the window
Other fixes with compact mode on double toolbar mode
Fixed issues with 'Firefox Multiaccount Containers' extension freezing Zen (#10666 )
Fixed slow split view switching and scroll positions not being remembered
Various stability and performance fixes for glance
Changes
On double toolbar mode, compact mode will have a new UI, where it overlays the web view instead of sliding like the sidebar
Hovering over the window captions on windows/linux or double toolbar in compact mode will stop pushing the web view down, instead it will overlay it
For enhanced privacy, 'Copy current page url' button will not copy tracking parameters by default
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