I never visit FTM's home page so I was unaware of its favicon.
What I saw was the FTM favicon associated with Rita's current mail thread, and directly beneath it in Safari's history was the same thread with the UBB favicon.
I, of course, can't duplicate the phenomena, which I copied to my clipboard for uploading and erased...doh!
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
