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Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

138.0.3 Firefox Release

May 13, 2025

Version 138.0.3, first offered to Release channel users on May 13, 2025

Fixed

  • Fixed a crash that could occur when viewing websites that use WebGL. (Bug 1961191)

  • Fixed an issue where the browser could repeatedly crash when certain SVG effects (like blur or drop shadow) were applied to very small areas. (Bug 1924241)

  • On Linux, fixed an issue where video playback would appear washed-out on Wayland when HDR support was unavailable. (Bug 1961610)

  • Fixed an issue where the "Match Case" shortcut Alt+C in the find-in-page toolbar did not toggle the checkbox as expected. (Bug 1952611)

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