new today,
better tomorrow
What's new in 1.12.9b
This update includes several fixes, security updates, and a few improvements! We've bundled the updates for Firefox 139.0 and 139.0.1 into the same release. Since Firefox 139.0 had some rendering issues on Windows for NVIDIA users, we waited an extra day to release this update to ensure the issues were resolved.
🔒 Security Changes
✨ New
Updated to Firefox 139.0 and 139.0.1.
Automatic updates for mods.
Automatic tab unloader now uses Firefox's default tab discarding feature, which is based on time and memory usage, instead of the previous time-only method.
Improved performance for rendering rounded corners in the webview.
Enabled the browser to prioritize more important processes when Zen is under memory pressure on macOS.
The context menu item 'Search text on search engine' now opens Glance instead of a new tab.
💎 Improvements
Unloaded tabs won't be dimmed unless they are explicitly discarded (browser.tabs.fadeOutUnloadedTabs).
Context menu icons have been removed to provide a cleaner look and feel.
🐞 Bug Fixes
Pinned- and essential tabs not restoring their icons correctly.
Other issues with split views and Glance.
Compact mode should now work correctly after closing the window — please let us know if you still experience issues.
