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.

This doesn't always find the open-access version of an article, but when it does, it's so convenient to just see that open padlock on the side and click on it to get access.