When Firefox isn't maximized, the top left corner has a drag space dedicated to dragging the window. It is also possible to optionally configure additional drag space on the top of the window. However, both of these areas disappear on maximized windows. Currently, to move a maximized window onto another screen, one has to "restore" the window and then drag the window. That's one step too many since there's no reason why one shouldn't be able to just drag a maximized window and have it automatically detach and attach to the next window as is possible with other software. Firefox just needs the option to individually allow the separate drag spaces to be configured to be visible for maximized windows to allow this. Suggestion: both of the drag spaces, i.e., the top drag space and the top left corner drag space, should have a setting each for both non-maximized windows and maximized windows in order to provide the ultimate in user preference configurability.