Rating: 2 stars

I wanted to love this, until I checked my source and found the nofollow attribute had not been applied to a single one of the 11 external links. Two stars for a clean & unobtrusive interface, -3 for the fact it didn’t do what it was supposed to.

Rating: 5 stars

I tested it by inspecting element with Firefox with plugin on and off. Yep it works great.