Google's updated their search engine scripts or codes, i believe. As seen through July 2023, the ublacklist dialog has gone missing under the url where it has been always. What was blocked still appears in results despite. Browser wasn't updated, so that's not the cause. There is no way to block them at the moment. Please fix this soon.
Updated: As of early March 2026, I've seen a different change. You can block them in Google's search results but not immediately. There seem a bug where each time you want to block any site, it won't be active until you click the extension button to activate it. It isn't as automatically active like before. Each time the page is reloaded/refreshed, the extension will require to be clicked first in order for the sites to not show up again. I believe this has something to do with "Only when clicked" shown when the extension icon is right clicked. It is the only already auto selected option placed and there are no alternatives. Why is that even shown then?
This has become an annoyance yet again.

It does what it says it does.

outstanding-- perfect for blocking sites when programming like geeksforgeeks and tutorialspoint, quora, and other way too SEO-optimized sites

no more quora and pinterest!!

I've been using this for a while now. It just "works". I've added half a dozen sites and I don't miss them a bit. When I accidentally add one, its easy to find and delete it from the blacklist.
This thing is PERFECT for me! Thank you.

Amazing. Does exactly what I needed it to do. Thank you for creating this.

This should be shipped as a default feature in all browsers, considering that terrible clickbait sites rise so easily in search engines.

Bye Bye CSDN, Never see you again

Чудесное расширение, давно искал подобный функционал. Наконец-то можно скрыть ненужные сайты в поисковой выдаче.

Doesn't work anymore.

Thank you, thank you, thank you! For my sanity, I needed to find a way to block the overwhelming number of links to Amazon in my search results. I am not interested in Amazon in any way, so it's useless. My multiple requests to Duckduckgo to enable site blocking in search results have gone nowhere, so, again: THANK YOU!!!