Under the current version, friend handling is still a tedious chore. If you want to manage your friend's list you need to open each "friend" in a separate window or tab and then select "Remove Friend" -- if you can.
In a number of instances, I bring a "friend" up in a tab only to discover that there is no way to remove them, they are like ghosts. But, the persist in showing up on my friends list.
It would also be nice if there was a way to simply "checkbox" a number of people and remove them all at one time. Having too many friends slows the game down and results in a cacophony of dings and beeps as they log in and out of the game.
Seems like an easy enough programming request.