Note that the warning appears in the Extensions popup rather than on the Extensions icon, so you wouldn’t know that StopTheMadness was disabled on YouTube unless you opened the popup (or unless you saw the autoplaying videos on YouTube that StopTheMadness would otherwise stop.)
What happens, though, if you pin the extensions to the toolbar for easy access to their settings?
It turns out that when you pin an extension to the toolbar, it no longer appears in the Extensions popup! Consequently, the quarantined domains warning no longer appears in the Extensions popup either. In fact, there’s no longer an Extensions popup: clicking the Extensions toolbar icon simply opens the about:addons page, which doesn’t show the quarantined domains warning anywhere.
I would like to see a link to that setting even with a security banner in front of it where you have to agree that everything that happens from now on is on you and not firefox.
Silently, but with a huuuuge Banner that notifies you that the extensions were disabled; not really silent then?
You would have to be looking for it:
I would like to see a link to that setting even with a security banner in front of it where you have to agree that everything that happens from now on is on you and not firefox.