Firefox Containers Preview

Firefox 153 was released today, introducing key user-facing updates including HDR video playback on Windows and enhanced PDF handling for merging documents and adding images. Technical improvements include QWAC support and browser-wide containers. Crucially, this version is an ESR, meaning it defines the feature set for the next year. This status is vital as ESR is the default browser for several major distributions, including Debian, RHEL, and Kali, ensuring long-term stability for users.