A good job, but could you improve it to let it able to reveal by a rule list? Like another reviewer said, every time popup is annoying.

Very good idea, execution less than ideal.

Revealing hidden elements doesn’t work on all pages (e.g. it doesn’t work on https://degooglisons-internet.org/medias), and the pop-up shown after page load is annoying. Perhaps better idea would be to have button in the address bar that gets shown only when there are hidden elements on a page and reveals them only on explicit demand.