Rated 5 out of 5 stars

Leech Block is the best add-on to remain productive at work. Simply redirect yourself to a useful, work-related page. You're surprised initially how often you want to go on Facebook.

I would wish to be able to enter a list of alternative sites which are randomly selected for re-direction.

This review is for a previous version of the add-on (0.6.3.1-signed).