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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.

38.5.2

Firefox Extended Support Release Release

December 22, 2015

Version 38.5.2, first offered to Release channel users on December 22, 2015

Changed

  • Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements