Easy to install adobe flash plugin for firefox and chrome browser on you ubuntu.

install chrome:
sudo wget http://www.linuxidc.com/files/repo/google-chrome.list -P /etc/apt/sources.list.d/
wget -q -O - https://dl.google.com/linux/linux_signing_key.pub  | sudo apt-key add -
sudo apt-get update
sudo apt-get install google-chrome-stable

install firefox
sudo apt-get install firefox

install adobe flash plugin for firefox and chrome

sudo apt-get install adobe-flashpluginsudo apt-get install adobe-flashplugin

sudo apt-get install adobe-flashplugin