Zen Browser 1.23b has been released, built on Firefox 157.0, featuring a new Library hub that consolidates browsing history, media, downloads, and Spaces into a single location. This update also introduces hardware-accelerated AV1 decoding for improved WebRTC video calls and enhances performance with faster startup times, especially when multiple tabs are open. Most notably, it addresses over 70 high-impact security vulnerabilities identified in Mozilla's recent advisory, making the upgrade highly recommended for users. Available for macOS, Windows, and Linux, Zen Browser 1.23b is free to download and does not include ads or subscriptions, with an emphasis on improving user productivity and security
Zen Browser 1.23b Adds Library Feature, Ships on Firefox 157 with 70+ Security Patches
Zen Browser 1.23b built on Firefox 157.0, with its headline feature being Library, a consolidated hub for history, media, downloads, and Spaces. It adds hardware-accelerated AV1 decoding for WebRTC video calls, a resizable auto-hiding sidebar, and faster startup with many tabs open. Most importantly, it patches more than 70 vulnerabilities from Mozilla's high-impact MFSA2026-97 advisory, making the upgrade strongly recommended.
