Dunno what to tell you, but auto-update is on, and up until a few days ago, my refresh was in the far left, before the addy bar, right next to Back/fwd... Now it is not, and cannot.
Maybe I multi-browser too much. I know IE has the refresh in the bar, Chrome has it way on the left. I can’t remember when FF had it on the left, I suppose it could have been last week’s version but I don’t think so. Maybe it used to be movable and I didn’t move it.