Firefox Tomorrow
Stable 137.0

Firefox 137.0

Tuesday, April 1, 2025 16 changes 7 categories
New (6) Fixed (1) Enterprise (1) Developer (3) Web Platform (2) Changed (2) Community (1)

TL;DR

6 new features, 1 fix, 9 other changes. Highlight: Tab groups begin rolling out today! Stay productive and organized with less effort by grouping related tabs together. One simple way to c…

New 6 items
  1. 01

    Tab groups begin rolling out today! Stay productive and organized with less effort by grouping related tabs together. One simple way to create a group is to drag a tab onto another, pause until you see a highlight, then drop to create the group. Groups can be named, color-coded, and are always saved. You can close a group and reopen it later.

  2. 02

    Firefox Address Bar Refresh 2025 - new ways to search for things new, previously viewed, and more - all from the address bar:

  3. 03

    Firefox now identifies all links in PDFs and turns them into hyperlinks.

  4. 04

    Support HEVC playback on Linux.

  5. 05

    Now you can sign PDFs without leaving Firefox. Save your signatures to re-use later.

  6. 06

    You can now use the Firefox address bar as a calculator. Simply type an arithmetic expression and view the result in the address bar drop-down. Clicking on this result will copy it to your clipboard.

Fixed 1 item
  1. 01

    Various security fixes .

Enterprise 1 item
  1. 01

    You can find information about policy updates and enterprise specific bug fixes in the Firefox for Enterprise 137 Release Notes .

Developer 3 items
  1. 01

    Developer Information

  2. 02

    In the Inspector Fonts panel, we now display fonts metadata, like the font version, designer, vendor, license…

  3. 03

    The Network panel now allows overriding network request responses with local files.

Web Platform 2 items
  1. 01

    Support for the SVG 2 path API is now available.

  2. 02

    Support for the hyphenate-limit-chars property is now available. This property enables authors to have greater control over the use of automatic hyphenation.

Changed 2 items
  1. 01

    We are investigating an increase in crashes for Windows users with Qihoo 360 security software. (Fixed in 137.0.1)

  2. 02

    Due to recent changes in Chrome on Windows, some users might find that the Firefox migration wizard no longer successfully imports passwords from Chrome or Chrome-based browsers. As a workaround, you can export your passwords as a CSV file from Chrome and then import them into Firefox using either the migration wizard or the Firefox password manager.

Community 1 item
  1. 01

    With the release of Firefox 137, we are pleased to welcome the developers who contributed their first code change to Firefox in this release, 17 of whom were brand new volunteers! Please join us in thanking each of these diligent and enthusiastic individuals, and take a look at their contributions: