If you want to check compatibility before downloading the installer, learn about the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. For example, it might say that your Mac doesn't have enough free storage space for the installation, or that the installer is too old to be opened on this version of macOS. If a macOS installer can't be used on your Mac, the installer will let you know. Learn how to upgrade to macOS Big Sur, the latest version of macOS. These users will be moved to the Firefox Extended Support Release (ESR) channel by an application update. Firefox version 78 is the last supported Firefox version for Mac users of OS X 10.9 Mavericks, OS X 10.10 Yosemite and OS X 10.11 El Capitan. Unsubscribe from Roma S.? OS X El Capitan VS Yosemite Speed Test - Is It Faster? - Duration: 5:11. Speedtest - Safari vs Firefox ( Mac OS X El Capitan ) Roma S. Full Version Mac OS X El Capitan Free Download 10.11.6 InstallESD DMG Bootable USB Free Download Mac OS X El Capitan 10.11.6 Intel And AMD Bootable USB ISO. Last version to run on OS X Mavericks, OS X Yosemite and OS X El Capitan Mozilla Firefox 79.x 79.0a1 - 79.0 Mozilla Firefox 80.x 80.0a1 - 80.0 Mozilla Firefox 81.x. MacOS version 10.11 (El Capitan) While for many this isn't necessarily good news, Mozilla focusing on the latest versions of the operating system is something that makes total sense. Apple recommends that you always use the latest macOS that is compatible with your Mac.

To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date.

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