Install the extension, hit Alt+Shift+P, and the page you’re on stops behaving: headlines snap loose, buttons crumble, and every element tumbles off under real Matter.js physics, gravity and collisions included. It works on whatever you’re actually looking at, not a demo — your inbox, a news site, a spreadsheet. No install needed either: the site hosts a handful of pre-built pages, including a parody inbox and a doom-scroll feed, purpose-built to be smashed.