Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8

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  • Creator: AliceWyman
  • Comment: added Mac to the summary to aid search results
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  • Reviewed by: AliceWyman
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This article applies to Mac users only.

The Firefox version 48 release in August 2016 will be the last Firefox version to receive new feature or security updates on OS X systems that are no longer supported by Apple: OS X 10.6, 10.7 and 10.8. Starting with the Firefox version 49 release in September 2016, Firefox is no longer supported on OS X systems below 10.9.

Visit this Apple Support page to find your version of OS X.

Option 1: Upgrade to an OS X version supported by Apple

In order to continue browsing safely, we recommend upgrading to an OS X version that Apple supports. Visit this Apple support page to learn more about upgrading.

While Firefox will still continue to work on unsupported versions, using Firefox on a supported version will provide you with the best and safest user experience.

Option 2: Download Firefox Extended Support Release (ESR) - until January 2017

Firefox Extended Support Release (ESR) version 45 will continue to receive updates on OS X 10.6, 10.7 and 10.8 until 2017. Version 45 is the last ESR version to receive updates. In 2017, ESR 45 will no longer be supported.

See the Firefox ESR page to download Firefox ESR.

Note: Some Firefox features might not be available on ESR.