I've had this feature for years by using the uBlacklist Firefox extension. With a single click after a search, you can permanently block a domain from coming up

I've had this feature for years by using the uBlacklist Firefox extension. With a single click after a search, you can permanently block a domain from coming up in your Google search results. https://addons.mozilla.org/en-US/firefox/addon/ublacklist https://addons.mozilla.org/en-US/firefox/addon/ublacklist First two extensions I always install on a new computer are uBlockOrigin and uBlackList.