Safari opens the Adobe Flash Player page on the Adobe website. Follow the instructions on the Adobe website to download and install the latest version of the plug-in. If you need to use an older version of Flash Player, you can use Internet plug-in management in Safari to run the plug-in in unsafe mode for websites that you trust. Adobe Flash Player for Mac is the high performance, lightweight, highly expressive component that delivers powerful and consistent user experiences across various versions of the Mac OS, different browsers, and countless mobile devices.
Adobe Flash Player for Mac lets you access Flash content in Web sites when using browsers like OS X's Safari. The plug-in integrates seamlessly and through a preference pane, gives you control over the type of access each Web site has to your system. The only downside to using it is that it suffers from performance issues.
Pros
Configurable: The plug-in adds a new preference pane in System Preferences where you will be able to adjust your local storage, camera, mic and peer-assisted networking settings to either allow the feature for all Web sites, on a per-request basis, or to deny all requests.
Per-site settings: All the features listed above support per-site settings for even more precise control.
Advanced options: The app lets you delete all Flash-related data and settings as well as audio and video license files, deauthorize the computer, and access trusted locations for developer testing.
About Flash Player Version
Cons
Performance issues: Despite its long history with OS X, this software tends to slow down your computer and drain your battery.
Bottom Line
If you're constantly visiting Flash-based Web sites, you will have to install either this plug-in, or a browser like Google Chrome, which has built-in Flash support. Generally, the better way to go would be to use Chrome since there will be a lower performance impact on your system. But if Chrome is not your kind of browser, then this plug-in remains a viable solution for enjoying Flash content on your Mac.