Rated 5 out of 5 stars

This tool is really great at helping productivity. Sometimes you need it just FORCE yourself to work.

I just have a couple of suggestions:
- a whitelist mode. That is, a lockdown such that you can only go to certain websites.
- ability to extend lockdown while you're in lockdown. This keeps you from being tempted to slack off once lockdown's over if it turns out you needed more lockdown time.
- leechblock seems to only save settings when i close firefox. This means that if firefox crashes, I lose my settings. Please fix this.

This review is for a previous version of the add-on (0.4.3).