So I'm in the process of switching to Firefox again now that native vertical tabs are an option. I'd like to be able to drag maximized windows by just flicking my mouse to the top anywhere and dragging, but it won't allow me unless "Menu Bar" or "Title Bar" is enabled. I'd rather not enable either as I like how it looks without them... I did manage to add the space I wanted by adding this to the "userChrome.css" file: #nav-bar { margin-top: 15px !important; } but it seems to only be cosmetic and won't allow me to use it for dragging the window...