I'm not sure if they're still actively working on it, but Mozilla at least intended to find a way to block those as well: https://addons.mozilla.org/en-US/firef

I'm not sure if they're still actively working on it, but Mozilla at least intended to find a way to block those as well: https://addons.mozilla.org/en-US/firefox/addon/in-page-pop-up-reporter/ https://addons.mozilla.org/en-US/firefox/addon/in-page-pop-u...