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.

Jan 10, 2020 Unlike updating apps from the Mac App Store or updating macOS system software in System Preferences, updating Firefox is done directly within the Firefox application itself. How to Update Firefox Web Browser on Mac. Here’s how to update Firefox on MacOS: From the opened Firefox browser, pull down the ‘Firefox’ menu and choose “About. 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 If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version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. Mar 23, 2020 If you want to update Firefox on a Mac, open the browser. Click “Firefox” in the menu bar at the top of the screen, and then select “About Firefox.” A window will appear with information about the current version of Firefox you’re Mac is running. If the browser is up to date, you’ll see “Firefox Is Up to Date” in this window. Update your browser to fast, safe and secure Firefox. One of the most important things you can do to have a safe, fast and secure online browsing experience is to make sure your browser is up to date. Update your browser like you would update your apps. No matter which browser you use, make sure you’re using the latest 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If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version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. English dictionary for mac free download.

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.

Mozilla Firefox Download

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.

Mozilla Firefox Updates For Mac