A long time ago, I "linked" my Facebook account to my Yahoo mail account.
This resulted in all of my Facebook "friends" being added to my Yahoo contacts list.
Ordinarily, I guess this wouldn't be a problem, except when signing into Yahoo Messenger from my phone, in which case all of these people appear in my "contacts" list - and since I scarcely know most of them - they all appear in the contacts list as "offline", which is something of an irritation.
So, what do I need to do in Yahoo mail to remove all traces of my Facebook acount?