Mac OS X 10.6.8 Update 10.6.8 v1.1 - Combo v1.1. Download the latest versions of the best Mac apps at safe and trusted MacUpdate. Chrisrrr last edited. I have gone to the Archives, where the latest version for Mac is Opera 12.16, which I've downloaded. However, I've read elsewhere that OS X 10.6.8 will run Opera 25, which doesn't seem to be available from the Opera home site. Google Chrome 5.0 (May 2010) was the first version available on Macs and Linux; previous versions were Windows-only. It never supported OS X 10.4 Tiger and initially required OS X 10.5 Leopard, which it abandoned on Sept. 15, 2012 with the release of Chrome 22.Version 39 (Nov. 2014) left behind 32-bit only Macs (Core Solo and Core Duo models from 2006), although it worked just fine on 64-bit.
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If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version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.
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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.