I've updated my previous post and codes. I moved to more of a slate blue background color and lightened up the folder pane. Overall, I think its a cleaner look. Here is my current userChrome.css file: /*******Move tool bar above unified bar*******/ toolbar#toolbar-menubar { Order: -1 !important; background-color: #435468 !important; /* Color of menu bar */ color: white !important; /* Color of the text - if needed */ padding-top: 0px !important; padding-bottom: 0px !important; margin: 0px !important; } /***** Move window controls up to the menu bar ******/ .titlebar-buttonbox-container { position: fixed; top: 0px; right: 0px; height: 19px !important; /******** adjust if necessary **********/ } /******Adjust and color unified toolbar******/ #unifiedToolbar { height: 40px !important; padding-block: 1px !important; margin-block: 0px !important; background: #435468 !important; color: white !im