Firefox 137 brings tab groups, a refreshed address bar, HEVC playback on Linux, and more

Mozilla has rolled out Firefox version 137, bringing a range of new features and improvements. This update introduces tab groups, enabling users to organize related tabs efficiently. Users can create, name, and color-code groups, which are saved for future sessions.

The address bar has received a refresh, featuring a unified search button for seamless switching between search engines and modes. Search term persistence allows for refined queries, and contextual search mode offers direct page engine searches. Frequent use of contextual search options prompts Firefox to suggest adding the search engine permanently. Users can also access search modes using intuitive keywords like @bookmarks and @history.

Additionally, Firefox 137 enhances PDF handling by identifying all links as clickable hyperlinks. Linux users benefit from HEVC playback support, while the browser now allows PDF signing with reusable signatures. The address bar can also double as a calculator for arithmetic expressions.

Developers will find updates in the inspector fonts panel, which now shows detailed font metadata. The network panel permits overriding request responses with local files. The release also includes support for the SVG 2 path API and the hyphenate-limit-chars property, among other improvements and bug fixes.