Go to: Mac HD/Library/Internet Plugins/PepperFlashPlayer. Verify that PepperFlashPlayer.plugin and manifest.json files are not present. If it they are trash them. Go to: Mac HD/Library/Application Support/Adobe/Flash Player. Verify that the Flash Player Install Manager folder does not exist. If it does, trash the whole folder. Feb 13, 2013 Blocked plug in!? -date versions of Adobe Flash Player do not include the latest security updates and will be disabled to help keep your Mac secure. If Safari 5.1.7 or Leopard Security Update 2012-003 detects an out-of-date version of Flash Player on your system, you will see a dialog informing you that Flash Player has been.
Safari User Guide
Use these tips to make sure you get the correct versions of plug-ins.
Mac Library Internet Plug Ins Disabled Folder
Important: Safari supports the plug-in for Adobe Flash Player but no longer supports other plug-ins.
In the Safari app on your Mac, look for a placeholder on the page, such as “Plug-in missing” or “Click to use [Plug-in].”
Click the placeholder.
Follow the onscreen instructions.
To change plug-in blocking, choose Safari > Preferences, click Websites, click the plug-in, then choose from the pop-up menu for the website. See Change Websites preferences in Safari.
Look for a link to install the plug-in.
Click the link to install the plug-in.
If the plug-in is already installed, Safari will offer to turn it on for this website. You can turn it on for just this visit, or for all visits to the website.
Check the webpage for a recommendation.
Websites often recommend the appropriate plug-in. If you can’t find a recommendation, contact the website’s owner.
In Safari, choose Safari > Preferences, then click Websites.
View the list of your installed plug-ins (if any).