Firefox - Flash unresponsive or frozen due to plugin

If you are a Firefox user, on an occasion your browser may seen unresponsive. Typically this is because of a plugin misbehaving. In my case it is typically Flash and it seems to be more when I make too many jumps, clicks etc with flash in one of my tabs. Killing Firefox helps and with my settings, I am able to recover all the tabs and contents to a large extent. I have found a better way that just kills the bad plugin. Start your task manager and look for a process called "plugin-container.exe ***". If you have multiple processes with similar name, kill the one with the highest memory usage.

Windows Task Manager - Firefox Plugin Container

You will notice that your Firefox browser is immediately available. The offending webpage will display a "plugin