Of course, you can view and delete the ones you don't want to be there.
You'll view the hostname, full location, value, safety and first and last use. By this way you can determine whether it is useful or not.
It doesn't need to be installed, so you only have to download and run it to access full information about cookie.
Cookies are useful, but sometimes they are a lot and dangerous, so it's a good idea to keep an eye on them.