It seems to show up in GQ.
It’s pretty obviously the S and D from “THE STRAIGHT DOPE” banner, stretched a bit to fill a square evenly and then resized to serve as an icon.
And the reason it looks just like the one I did is because, quite inexplicably, it is the one I did, linked locally/manually. Except I don’t recall doing it, and it only started working in the past couple of days.
So, mystery solved. And it looks like crap because it’s was 64x64 and Firefox was resizing it. I cut it down to size in a nice program and it looks better now. :smack:
How to do it in Firefox?
Right click on a bookmark.
Click on “Tab Settings”
Page “Referrer and Favicon”
Input the URL for the icon (file:/// type URLs accepted)