Here's how you can install the Adobe Flash Player 18.104.22.1680 in Linux Mint 15. There was a memory corruption problem in the last release, this version fixes that so it won't cause you any headaches.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository "deb http://archive.canonical.com/ raring partner"
sudo apt-get update
sudo apt-get install flashplugin-installer
Additional Resources for Adobe Flash Player
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