Don't work with anything other than Google. In other words, it is useless.

Got the extension to hide Aliexpress from search results.
Added Aliexpress as well as Alibaba to the blacklist and...
NOTHING.
Extension would allow the searches and when clicked on the link it would let me go to the site.
When clicking on the extension in the toolbar it would ironically show "Unblock this site"
It was NEVER blocked!
Useless extension that does not work!

Does not work. I'm on latest firefox with ecosia.

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.

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.

You should add the "pause blocking" button.