1.21.16b
Release build - 1.21.16b (2026-08-28)
Changed 1
- Update Firefox version to 154.0.1
Fixed 5
- Improved session store performance, lowering CPU usage spikes and disk usage when storing the session
- Fixed duplicate separator on tab context menu
- Fixed minimizing PiP window failing to collapse into the sidebar
- Fixed slower access to saved passwords and unexpected Primary Password prompts caused by recent changes to password storage
- Fixed an issue where addresses were failing to autofill on some sites
From Zen Browser
Zen Stable Release
New Features
- Update Firefox version to 154.0.1
Fixes
- Improved on session store performance, lowering CPU usage spikes and disk usage when storing the session (#14990)
- Fixed duplicate separator on tab context menu (#15031)
- Fixed minimizing PiP window failing to collapse into the sidebar (#14710)
- Fixed slower access to saved passwords and unexpected Primary Password prompts caused by recent changes to password storage.
- Fixed an issue where addresses were failing to autofill on some sites.
- Other bug fixes and improvements.