...When a tab closes, any cookies not being used are automatically deleted. Prevent tracking by other cookies and add only the ones you trust. Easily import and export your cookie whitelist. Add the sites you want to keep cookies for to the whitelist (permanently) or greylist (until browser restart) Enable "Automatic Cleaning" in settings or "Auto-Clean" in popup. Watch those unused cookies disappear. Please keep in mind that at this time only Mozilla Firefox and Google Chrome (as well as its development branches e.g. ...