Firefox ESR
Release Notes

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.

Firefox ESR

August 11, 2015

Version 38.2.0, first offered to ESR channel users on August 11, 2015


  • Firefox may become unresponsive after right-clicking Flash content on Windows 8

  • Various security fixes

  • Firefox may crash during mp4 video playback

  • Branded Firefox application does not open URLs in system default browser

  • Significant memory leak with GreaseMonkey add-on

  • crash [@ RtlEnterCriticalSection | MessageLoop::PostTask_Helper] on browser shutdown

  • Browser UI becomes unresponsive state when using Unity Web Player Plugin

  • ESRs will not build on hppa platform

  • crash in mozilla::layers::SyncObjectD3D11::FinalizeFrame()

Get the most recent version

All Firefox ESR downloads