I'd like to love this in principle, as it would be far superior to Firefox's built-in cookie management options. In practice, the add-on is selective and unreliable in the cookies it deletes. I've followed some of the recommended troubleshooting via the FAQ, including add-on reset and turning off other cookie related add-ons, but the end result is still not good. As I'm not willing to sink more hours into community troubleshooting, I have to uninstall this disappointed.