Tons of utility and highly customizable. Rated 5 out of 5 stars

The Diigo Toolbar has been a staple of my firefox install for at least four years. The items that show up in the toolbar are completely customizable. If you don't like something, go to the settings and remove it.

Thanks for the amazing service and software Diigo.

This review is for a previous version of the add-on (5.1.0.29).