One of the things that I’ve hated about my favorite photo editing program since they release version 2.6 was that the tool boxes jumped on top of everything (like always-on-top for just the application). Despite my best efforts, I never found the option to change that until today.
Because the option is named very, very poorly.
As is pointed out here, the name of the option you are looking for that will change the window behavoir back to how it used to be in previouse versions is hidden under Edit -> Preferences -> Window Management -> “Window Manager Hints”. Yeah that’s right. Poorly named to anyone but the developer that made it. Under that change the Hint for toolbox/other docks options to “Normal Window” instead of “Utility Window”.
Restart and there you go!
Pictured: Foreground: my new (used) car. Background: my old (beaten) car.