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.
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If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version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.
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.
Chrome Web Browser for Mac. The Top most browser for Mac that we recommend is Google.
Mozilla For Mac Downloads
Firefox Browser for Enterprise. Same speed and safety you trust, designed just for business. Firefox for Fire TV. Watch videos and browse the internet on your Amazon Fire TV. Mozilla VPN: Fast. Protect your entire device and all applications. Mask your real location and connect up to 5 devices. Mac users interested in Firefox for os x 10.5.8 generally download: Firefox 80.0 Free Firefox is one of the most popular web browsers on the market, providing numerous helpful features and quick speed to millions of users worldwide. Thunderbird is now part of MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation. Portions of this content are ©1998–2020 by individual contributors. Content available under a Creative Commons license. Contribute to this site.
Mozilla For Macbook Pro
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.