Cookie AutoDelete - Control your cookies! Auto deletes unused cookies from your closed tabs while keeping the ones you...
Have I Been Sold? - Check if your email address was sold without permission
Cookie Quick Manager - An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
Creep Alert - Check if friends or colleagues track you via email
EditThisCookie - EditThisCookie is a cookie manager. You can add, delete, edit, search, protect and block cookies!
Optery - See the private info data brokers post about you online