Zen Browser has released version 1.21.13b, a bug-fix update that addresses two specific issues: a sidebar loop causing infinite media players on complex pages and a regression where restored pinned tabs reverted to regular tabs. This version marks the tenth release of the 1.21.x series within seven weeks, reflecting the project's rapid pace of updates while tracking Mozilla's Firefox development closely. The release focuses on stability and maintenance without introducing new features, allowing the browser to run smoothly despite a backlog of community-reported issues. Users can download the update from the official GitHub page, with the release highlighting the team's ability to maintain quality and efficiency in their development process

Zen Browser 1.21.13b Lands with Sidebar and Pinned Tab Fixes

Zen Browser has released version 1.21.13b as a targeted bug-fix update, marking the tenth drop in the 1.21.x series over just seven weeks. The build resolves a persistent sidebar loop that rendered infinite media players on complex pages and fixes a regression where restored pinned tabs incorrectly reverted to regular tabs. This quiet maintenance release continues the project's aggressive track of Mozilla's upstream Firefox 152 through 153.0.3 development, ensuring users get stability without waiting for major feature additions. Available across Windows, macOS, and Linux with GPG-signed commits, the update keeps the open-source fork running smoothly amid a heavy backlog of community-reported issues.

Zen Browser 1.21.13b Lands with Sidebar and Pinned Tab Fixes @ Linux Compatible