I set the Flash plugin settings in Safari to "When visiting other websites: Ask" so that it only runs after explicit permission via popup window has been grante

I set the Flash plugin settings in Safari to "When visiting other websites: Ask" so that it only runs after explicit permission via popup window has been granted. Two things jumped out at me: 1) How many sites call the flash plugin while doing nothing of any value with it (tracking and ads are not considered of value). Every time you deny permission, a line is added in the prefs window with a "block" statement at the end, and this list is getting quite large... 2) How few websites actually need flash to be useful Almost nothing of value has been lost.