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If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version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.
Firefox Lockwise. Take the passwords you’ve saved in Firefox with you everywhere. Download for iOS; Download for Android; Support; Firefox Monitor. See if your personal info has been leaked online, and sign up for future breach alerts. If you use an old version of OS X, see these articles for more information: Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8 Firefox Mac OS X 10.9, 10.10.
![Firefox Firefox](/uploads/1/3/4/4/134482376/649823855.jpg)
- Download the latest version of Firefox for Mac. A multi-platform web browser with open source code. Mozilla continues to work on further improvements for its. Mozilla Foundation. A multi-platform web browser with open source.
- Download old versions of Firefox for Mac. Mozilla Foundation. A multi-platform web browser with open source code. Previous versions. Sometimes, the latest version of an app may cause problems or not even work. While the developer is fixing the problem, try.
Old Firefox For Mac Os 10.13
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.
Old Firefox For Mac Download
![Old Firefox For Mac Os Old Firefox For Mac Os](/uploads/1/3/4/4/134482376/125801368.jpg)
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.