Couldn’t immediately find that one. First two pages of hits for “Behind The Overlay” are for Chrome/Edge, I’m looking for a solution on mobile though, ie Firefox/Fennec - seems to be this:
https://addons.mozilla.org/en-US/firefox/addon/behind_the_overlay/
… which does not work on mobile unfortunately, because it only offers a toolbar button, not an extension entry/menu.



Can’t help but notice a lack of the ‘smash successfully’ (or equivalently, ‘fail at contraception’) dimension.