Ubuntu 18.04 - Install Flash

It's mental, but we still need flash from time to time. If you really have to install it then use the instructions below.

sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
sudo apt update
sudo apt install adobe-flashplugin browser-plugin-freshplayer-pepperflash -y

References

• Website for Students - Install Adobe Flash Player on Ubuntu 18.04 LTS Desktop