Oops it DOES still work! Rated 5 out of 5 stars

This is the very best add-ons for Firefox. I thought it wasn't working with V.21 but it does...somehow I had turned off the icon button, even though I had enabled it in the extension itself...oops! It looks like the designer has moved on from Firefox extensions. I hope this continues to work for many many versions to come.

This review is for a previous version of the add-on (