Flash is a web-browser plugin that enables things to appear to move on webpages. Flash has been great despite the numerous exploits and security breaches but now it’s time to get rid of it. HTML5 has displaced the need for Flash and only poor sights use it. Lets uninstall Flash or turn it off.
On a PC go to “Add and Remove Program” or “Programs and Features” and uninstall it.
Chrome has “Flash” built in, so go to chrome:plugins in your address-bar and disable it.
If you have uninstalled “Flash” from your Computer there is nothing to do for Firefox.