Absolutely the best social media blocker / restrictor out there. Using to block suggested pages and AI generated content, as well as prevent doomscrolling of feeds or display of up/downvotes.

From some other reviews: it may not be clear for some people that in order for the add-on to work you first have to navigate to the site you wish to block, load it, and then click the add-on to toggle the settings for that site.