Zen Browser 1.11.4b has been upgraded to Firefox 137.0.2, introducing automatic picture-in-picture functionality by default and implementing bottom rounded GTK corners on Linux. The update addresses several issues, including the malfunction of glance on HTTP or file protocols, the inaccessibility of the sidebar scrollbar, the appearance of unloaded tabs in the ctrl+tab switcher, the failure of split view to open a new window when dragging a tab outside, the restoration of pinned tabs to their original URL, the absence of redistributable files in Windows packages, and performance concerns when closing multiple tabs.

Zen Browser 1.11.4b (2025-04-17)

This update includes a number of bug fixes and performance improvements!

New Features

• Updated to firefox 137.0.2
• Enabled automatic picture-in-picture by default (media.videocontrols.picture-in-picture.enable-when-switching-tabs.enabled in about:config)
• Enabled bottom rounded GTK corners on Linux by default

Fixes

• Fixed glance not working on http or file protocols ( #7263)
• Fixed the sidebar scrollbar being innaccessible because it's too thin ( #7374)
• Fixed unloaded tabs appearing in the ctrl+tab switcher ( #7365)
• Fixed split view not opening a new window when dragging the tab outside
• Fixed enabling Restore pinned tabs to their originally pinned URL on startup setting does not work
• Fixed pinned tabs doing a second GET request on startup instead of using a cached version
• Fixed windows packages not containing redistributable files
• Fixed 'reset tab' not appearing if only the query parameters changed on the URL ( #7614)
• Fixed workspaces temporarily inheriting essential tabs from the source workspace a container tab was switched from ( #7295)
• Inconsistent spacing with the native firefox sidebar on compact mode (multiple toolbars) ( #7118)
• Split views not selected still having the pending attribute
• Fixed swiping workspaces with Logitech mouse not working ( #7274)
• Fixed performance issue when closing multiple tabs ( #7507)
• Window controls not expanding on split views and element separation on 0 also not expanding them ( #7694)

Release build - 1.11.4b (2025-04-17)