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.

Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)

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

Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)