How to fix Flash plug in Failure in OSX 10.8.5

1. System Preferences > Flash Player > Advanced > Delete All

Press “Delete All” button under “Browsing Data and Settings”.

2. Install Adobe Flash Player.

System Preferences > Flash Player > Updates

Press the “Check Now” button.

http://get.adobe.com/flashplayer/

Download it and quit Safari from Safari menu in the menu bar.

Follow the prompts to install Adobe Flash Player.