Firefox 152 Released: New Settings, Tab Groups, and Muting Features

Search & Navigation: Consolidating default search engine selectors, address bar suggestions, and search shortcuts in one central interface.

This structural realignment relies heavily on Project Nova design tokens: generous whitespace, subtle color gradients, tactile card-based components with micro-thin borders, and soft, rounded corners. The goal is to make browser customization approachable without stripping away power-user configurations.

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Embracing the Future of Web Imagery: JPEG XL Support

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One of the most technically significant additions under the hood of Firefox 152 is the inclusion of experimental support for the JPEG XL image format (ISO/IEC 18181). While previously restricted to Nightly pipelines, the underlying code for JPEG XL is now compiled by default in standard release builds. Users can activate this next-generation format directly through the “Firefox Labs” section of the redesigned settings panel.

JPEG XL is widely considered by web standards advocates to be the logical successor to legacy formats like JPEG, PNG, and GIF. The format boasts several engineering advantages:

• Superior Compression: JPEG XL offers significantly better data