By default, Xubuntu 15.10 does not come with Adobe Flash Plugin installed. But don’t worry, installing flash plugin on Xubuntu 15.10 is very easy. This tutorial will guide you how to install Adobe Flash Plugin on Xubuntu 15.10. Flash Plugin is required to play multimedia content on a web browser such as Mozilla Firefox.
Steps to install Adobe Flash Plugin on Xubuntu 15.10
A. Update the system
Open Terminal and type this command to update repository index
sudo apt-get update
B. Install Flash Plugin
sudo apt-get install flashplugin-installer
Wait until the download process is completed. Now open Firefox and type about:plugins to check if the Flash Plugin is correctly installed. You should see the following Shockwave Flash listed there.