I n this article we are going to install and plugin adobe - Flash player on Firefox Quantum /firefox so first you should must download firefox quantum in kali linux here is the steps to install firefox quantum in kali linux 2017.2 - How To Install Firefox Quantum in Kali linux /other Linux Method -1: Automatic Install Open a Terminal in Kali Linux and type this command: apt-get install flashplugin-nonfree When it finishes installing and you are presented with the root@kali prefix again, type this command and press Enter: update-flashplugin-nonfree –install You can go here in firefox to test Flash Player. If you see the little animation , then you’re good to go! Method #2: Manual Install First of all go to this site and download tar.gz for other linux . https://get.adobe.com/flashplayer/ Now hit the download button Extract the tar.gz File once you have downloaded the file extract them. Installing Fla...