In this article i will show you how to install Adobe Flash Player in Ubuntu 13.10 / 12.10 / 12.04.
Adobe Flash Player is available in the Cannonical Partners Repository, you have to add this repo to your system before installing Adobe Flash Player.
Adding the Canonical Partner Repo and update the system:
$ sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
$ sudo apt-get update
Install Adobe Flash Player:
$ sudo apt-get install flashplugin-installer
The alternative is to install the Ubuntu Restricted Extras, which will install the Flash Player Plugin among others:
$ sudo apt-get install ubuntu-restricted-extras