It works OK if cookies are disabled or if cookies are prevented with moz-rewrite. I should think it is the web browser which would have the functions for config

It works OK if cookies are disabled or if cookies are prevented with moz-rewrite. I should think it is the web browser which would have the functions for configuring cookies, anyways. But, that is a valid point about the classes of cookies; if the web page lists the names of all cookies in each class, and what they mean, then this gives the user the information they will need to configure it. (Otherwise, if it is the server which handles this configuration, then a cookie will be needed to store this configuration too, and that makes it impossible to disable all of them.)