Which component is not typically supported by a first-party cookie?

First-party cookies are created by the website that a user is currently visiting and are primarily used to enhance the user's experience on that specific site. The functionalities of first-party cookies typically include storing session information, user preferences, and tracking user behavior within the site.

User authentication related to multiple sites is not supported by first-party cookies because these cookies are limited to a single domain. They cannot carry information across different sites or domains; instead, they facilitate interactions and information storage within the same site. Other options, such as session information, user preferences, and tracking visited pages, all fit the purpose of first-party cookies, allowing for a more tailored user experience on the current site.