
My sidebar will not stay open after I close all tabs and windows
I like to keep my sidebar open with a list of my bookmarks because I have a LOT of them. I have always kept it open and then today for some reason after a reboot of my machine, Firefox will NOT keep the sidebar open permanently. I can see the sidebar button on the address bar, and pressing this button will reopen the sidebar, but I don't want to have to reopen it all the time because it doesn't save my size settings. I have looked at the JSON file where this setting is supposedly stored and nothing looks wrong. I even deleted this file (after making a backup) and nothing changed.
How do I get my sidebar to stay open so when I start up a new window, it is already open and I don't need to use the button or the keybind?