W11 Main screen, I have all 4 rows turned on. This happened some time ago and then stopped doing it, I don't know why. All of a sudden Firefox is back to filling open (and unused) shortcut positions, with old links pulled from the history file. This is clutter. It just started happening. I can manually clear the old links with a millions delete clicks and the empty shortcut position remain free for that session. when I get out of the main screen and return, the unused positions have refilled with old links from history again. How to I stop this?