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)
Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download for Linux 64-bit
- Download for Linux 32-bit
Fixed
-
Disabled multiprocess support for users running old versions of the JAWS screen reader software (bug 1489605)
-
Fixed a startup crash affecting users migrating from older ESR releases (bug 1489744)
-
Clean up old NSS DB files after upgrading (bug 1475775)
-
Various security fixes
Developer
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)
Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download Firefox ESR
- Download for Linux 64-bit
- Download for Linux 32-bit