Starting in Flash 11.3 the Flash Player and Adobe are working on these issues, (or use Adobe's uninstaller), and then install don't need it, or contact Trusteer Support.
Adobe Download Flash Player Mac
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
Adobe Flash Player
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.
Download Adobe Flash Player For Mac
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.
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.
What do you need to know about free software?
Mac users know how efficient and versatile their computers can be, handling an array of tasks from school projects to work projects to gaming to editing. However, if you’re browsing and find that you can’t watch a video or view an animation, it may be due to your Mac’s Adobe Flash Player being out of date.
Don’t fret! There’s a way to address that problem and update your Flash Player to watch videos easily.
How To Install Adobe Flash Player For Your Mac Computer
The first thing you need to contend with is to determine if your Mac computer even has Flash Player on it. You can do this by going to Adobe’s main website. The developer’s tool will let you know what your Flash Player’s status is – whether or not it’s installed and browser-enabled.
How you enable Flash Player on a Mac will depend on the browser being used.
If you’re using Safari, which is the browser on Mac computers, you need to check the version.
You’ll need to go Preferences, hit the Websites tab and locate the Adobe Flash Player, which should be found in the plug-ins section. Check the box to start up the flash player, picking how you’d like the plugin to act with other websites – run automatically or not.
If you don’t have the plug-in, you’ll need to download the Adobe Flash Player, closing Safari to go on with the installation.
Using Other Browsers On The Mac
If you’re using Opera, Chrome or Firefox, be sure to start up the plugin. For instance, Firefox makes you manually activate the plugin. With Opera, users are given an option if they want Adobe Flash Player to work on a particular website.
Chrome suggests running Adobe Flash Player on only trusted websites. This will ensure security problems are addressed when the plug-in is used.