Starting with Firefox version 49, Firefox requires Mac OS X 10.9 (Mavericks) or higher. Visit this Apple Support page to find your Mac OS version.
If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version that Apple supports. Visit this Apple Support page to learn more about upgrading your Mac.
![Apple Java For Os X 10.7 10.8 Apple Java For Os X 10.7 10.8](/uploads/1/2/6/5/126581913/567204799.jpg)
Note: If you have Mac OS X 10.7 (Lion) or 10.6 (Snow Leopard), you will need to download OS X El Capitan before you can upgrade to the latest Mac OS.
While insecure versions of Firefox will continue to work on OS X 10.8 and earlier, using an up-to-date version of Firefox on a supported version of Mac OS will provide you with the best and safest user experience.
Apple Java For Os X 10.7 10.8 Version
Sep 05, 2012 Apple has released one updater for OS X 10.6 and one for OS X 10.7 or later that will bring the Java 6 runtime installation in OS X systems up to the latest version, version 1.635. Jun 18, 2013 Java for Mac OS X 10.6 Update 17 delivers improved security, reliability, and compatibility by updating Java SE 6 to 1.6.065. This update enables per-website control of the Java plug-in within Safari 5.1.9 or later.