nothing happens Rated 1 out of 5 stars

.. apart, I suspect, of this app collecting information from my browsing activity. Gone after 5 minutes

Pretty nice Rated 5 out of 5 stars

As far as toolbars for Firefox go, this is one of the better ones I've seen. Clean, customizable interface, and it even has an Internet Radio Player!

This is a good alternative to the SimilarWeb Discovery Tool.