Apr 02, 2025 16:20:00

'Firefox 137' official release, major feature additions to address bar and tab group function added

The official version of the web browser ' Firefox 137 ' has been released. In addition to the tab group function being available, many functions have been added to the address bar.

Firefox 137.0, See All New Features, Updates and Fixes

https://www.mozilla.org/en-US/firefox/137.0/releasenotes/

◆Tab group function added
Tabs can now be grouped and named by dragging one tab over another until it becomes highlighted, then dropping it.

The tab group feature is subject to a progressive rollout that will be released in stages to a portion of Firefox users, and will be rolled out gradually while checking for bugs. At the time of writing, it could not be confirmed on the editorial staff's PC.

◆Massive addition of functions to the address bar
We've added a variety of features to the address bar, but all of them are subject to a progressive rollout.

An integrated search button has been added to the left of the address bar, making it easier to switch search engines and search modes. In addition, search terms are now retained in the address bar even after search results are displayed, making it easier to continue searching.

It also has a feature that allows you to easily switch search engines and search modes by using keywords such as '@bookmarks', '@tabs', '@history', and '@actions'.

A 'secondary action button' has been added to the suggestion field that displays common Firefox actions.

On pages that have a search function, a button that says 'Search using the search engine built into that page' is displayed.

If you search twice with the same search engine, you will be asked if you want to add it to Firefox. By clicking 'Add' here, you will be able to use the search engine even when you are not on the site.

Firefox now automatically calculates math expressions when you enter them in the address bar. Clicking on the result will copy the resulting number.

◆You can now add a signature to a PDF
You can now add a signature to a PDF file when it's open.

The ability to add a signature is also subject to a progressive rollout.

Changes for developers
- You can now check the details of fonts on a page
In the Fonts panel of the Inspector tab of the Developer Tools, you can now see metadata such as the version, designer, vendor, and license of the fonts used on your page.

- Network responses can now be overwritten
In the Network tab of the Developer Tools, a 'Set network overrides' has been added to the context menu, allowing you to override network responses with local files.

◆Other changes
- All links within PDF files are now recognized and converted into hyperlinks.
- Added support for HEVC playback on Linux.

-SVG 2 path API is now supported.
- hyphenate-limit-chars is now supported, allowing finer control over text hyphenation.

Firefox 137 also includes several security bug fixes .

The next major version, Firefox 138, is scheduled to be released on Tuesday, April 29, 2025 local time.