I just wanted to follow up on my last comment and say the avatar is gone after I deleted my second profile and restarted the app. I didn't think that would work, because there didn't seem to be any option to turn it off—and it didn't seem to work ini...
I just use one profile—and am the only person who uses my computer—so I don't need an additional avatar overlaid on the Firefox icon letting me know I'm using the only profile I have (I did experiment with additional profiles, but I found them frustr...