With the new (in beta) google search 'option dots' at the right hand side of each result, this no longer works, sadly. There's no way to opt-out of the beta features (it seems to be a soft roll-out on google's end.)
It's my hope that this addon will be updated soon, as I love the features it provides. If there's any more info I can give, let me know.

SUPER.

I've used this addon for a while and it works great! Just one problem though; sometimes there's one search result that uBlacklist doesn't let me block. Other results have the 'Block this site' option, but just one of them won't have it. Not sure if it's a bug or something about the url, even adding it manually doesn't work. Other than that, great addon!

sync subscribe list plz!

Update: 19th May 2026.
This is the only extension that used to do the best job of blocking unwanted results from appearing in Google's result. WAS.
People with the talent of creating programs such as these need to realize they should never, NEVER EVER sell their valuable programs to Google!
This extension has gone down the drain....
If you see users who have placed 5 stars at current moment, those profiles are most likely fakes.

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.