very good Rated 4 out of 5 stars
What can I say.. it works!
But... doesn't seem to match long addresses, an issue for some sites.
Great! Rated 5 out of 5 stars
Would be even better if there's a 'time currency' feature where visiting a certain productive site would add extra time to the time limit for accessing distracting websites.This review is for a previous version of the add-on (0.6.3.1-signed).