I am currently using Debian “Wheezy”, and I’ve been using it for a while now. Recently, I realized that I was browsing the web without Adobe Flash Player installed on my system. Although, I did a normal apt-get install flashplugin-nonfree things did not work. So I searched a little more and found Google’s custom flash player called Pepper Flash Player.
Installing PFP is a bit of a pickle unless you have already added backports to your repositories. To add the backports repositories, you need to add a line to sources.list file which is present in /etc/apt/.
Add this line to sources.list,
deb http://ftp.debian.org/debian wheezy-backports main contrib non-free
Now update your package list,
Almost done, now install package pepperflashplugin-nonfree,
apt-get -t wheezy-backports install pepperflashplugin-nonfree