Rated 2 out of 5 stars

Seems a bit silly. If you can find the will to install this, surely you can find the will to not spend your day on Facebook?

This review is for a previous version of the add-on (0.6.6.1-signed). 

Silly?

"If you can find the will to install this, surely you can find the will to not spend your day on Facebook?"

No, because it's much easier to install and set up LeechBlock than it is to constantly resist the temptation to spend time on Facebook and other sites. Isn't that obvious?