COOKIE name	COOKIE Description
CART	The association with your shopping cart.
CATEGORY_INFO	Stores the category info on the page, that allows to display pages more quickly.
COMPARE	The items that you have in the Compare Products list.
CUSTOMER	An encrypted version of your customer id with the store.
CUSTOMER_AUTH	An indicator if you are currently logged into the store.
CUSTOMER_INFO	An encrypted version of the customer group you belong to.
CUSTOMER_SEGMENT_IDS	Stores the Customer Segment ID
EXTERNAL_NO_CACHE	A flag, which indicates whether caching is disabled or not.
FORM_KEY	Stores form key used by page cache functionality.
FRONTEND	Your session ID on the server.
GUEST-VIEW	Allows guests to edit their orders.
LAST_CATEGORY	The last category you visited.
LAST_PRODUCT	The most recent product you have viewed.
NEWMESSAGE	Indicates whether a new message has been received.
NO_CACHE	Indicates whether it is allowed to use cache.
PERSISTENT_SHOPPING_CART	A link to information about your cart and viewing history if you have asked the site.
RECENTLYCOMPARED	The items that you have recently compared.
STF	Information on products you have emailed to friends.
STORE	The store view or language you have selected.
USER_ALLOWED_SAVE_COOKIE	Indicates whether a customer allowed to use cookies.
VIEWED_PRODUCT_IDS	The products that you have recently viewed.
WISHLIST	An encrypted list of products added to your Wish List.
WISHLIST_CNT	The number of items in your Wish List.

FreeBase