Cookies originate from websites on the Internet. Some websites use cookies and some websites don't use cookies. Cookies may also originate from websites you've never even visited, these kind of cookies are sometimes called third party cookies and are used quite commonly in advertising. All cookies are not bad but some are. WebWasher distinguishes between good and bad cookies and filters out the bad ones.
Cookies are also the subject of considerable debate.
I've granted all cookie permission. This makes WebWasher the only control center for cookies on my computer. These are also my preferred settings. I actually don't accept cookies and I control them exclusively with WebWasher. How you set your browser is entirely your decision and preference.