Unfortunately it does not work. I tried it on various pages as described, but the green button does not appear. I only see a black symbol with a lock.

works great! It finds free articles that even don't come up in other searches.

This extension is priceless - I only wish it worked on mobile Firefox as well.

It doesn't work at all! Don't even know how to use it properly.

It doesn't work. I still can't read articles behind a paywall.