I have searched for the answer to my question, but everything is out-of-date. Sorry if this is a repeat.

Whenever Windows or Firefox performs an update, upon restart the "move to next monitor" button disappears. It also happens when my computer (Dell) wants to do an upgrade.

I can usually get it to reappear just by opening Display Fusion. However, is there a way to keep it docked on the URL display line without always having to start Display Fusion?