Thank you, very much, for your help!!!

So, the best I seem to be able to do is get Chrome to be completely disabled, but a "First User" still shows up?  I'm assuming that's me?  I have this showing on my MacBook.  This DOES NOT appear on my iMac (only shows the Chrome icon, disabled, with no cookies).  What am I still missing? :huh:

I very much appreciate your help.

Well, I got half way there.  I'm still not permitted to remove the browsers (I don't mind if they exist without cookies), but I do mind that there is a PERSON TWO that's still tagging my profile.  How do I delete this?

Update picture attached.

I wish to delete all the browser cookies from Firefox, Chrome and PERSON 2 (whoever that is)?  I don't even know who PERSON 2 might be (other than myself).  Can anyone tell me how to delete these browser cookies, including the Person 2 cookie data?  Thank you.

I have enclosed an attachment to illustrate what I desire to delete.