After clearing histories and cookies for both chrome and FF, here is what I found for both chrome and FF.
User A logs directly into FB, and no one is logged into the test site configured with JFBC.
{JFBCFriends} is showing avatar of user A and some of A's friends. See this attachment.
Same scenario, the avatar of user A is showing up under LIKE. See this attachment.
If the user A is logged out of FB, then nothing from user A or A's friends are shown - as expected. I hope you can recreate those two scenarios and point me to why I have the errors.
Thanks.