Click-to-Play to Prevent Flash Problems

Lots of Flash problems lately.

This articles mentions Click-to-Play but it will not work in Firefox.
http://www.howtogeek.com/188059/how-to-enable-click-to-play-plugins-in-every-web-browser/?PageSpeed=noscript

Another way of blocking Flash if you are not using NoScript, is Flashblock. “Note: Flashblock does not work with Javascript disabled or with NoScript installed.”
https://addons.mozilla.org/en-US/firefox/addon/flashblock/

When Click-to-Play did work in Firefox, this shows you where it was set.
http://www.howtogeek.com/123986/how-to-enable-click-to-play-plugins-in-firefox/?PageSpeed=noscript

There is an Add-on from July 13, 2015, Click to Play per-element 0.3.2.1-signed
https://addons.mozilla.org/en-US/firefox/addon/click-to-play-per-element/?src=api