Why does nobody target the root cause? The possibility to show popups and popovers in browsers should be removed completely. There are little to no legit uses for them. Even reputable websites use them only to nag and annoy their users. And don't get me started about Javascript. This is a plague, that causes more problems than it solves.
This is an absurd overreaction. Popovers are CSS. Just a positioned element. And both up-and-overs are "legitimately" used as modals in apps.
Re: Malicious sites abuse 11-year-old Firefox bug that Mozilla failed to fix
#81And even in those cases 99% of the time they're a PITA. Modals are as bad in web UI as they are in desktop UI.