Choose Window Downloads or press Option+Command+L. Double-click the installer file to begin the Flash Player installation. Unless you have specified otherwise, the file is saved in your Downloads folder. After downloading Flash Player, close all browsers.
Doing so will also ensure that you’re using the latest version and enable Adobe Flash Player on Mac across all installed web browsers and applications that use it. The most straightforward way how to re-enable Adobe Flash Player on Mac computers is to simply uninstall it.