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 Firefox ESR
- Download Firefox ESR
Fixed
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Firefox may become unresponsive after right-clicking Flash content on Windows 8
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Various security fixes
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Firefox may crash during mp4 video playback
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Branded Firefox application does not open URLs in system default browser
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Significant memory leak with GreaseMonkey add-on
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crash [@ RtlEnterCriticalSection | MessageLoop::PostTask_Helper] on browser shutdown
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Browser UI becomes unresponsive state when using Unity Web Player Plugin
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ESRs will not build on hppa platform
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crash in mozilla::layers::SyncObjectD3D11::FinalizeFrame()
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 Firefox ESR
- Download Firefox ESR