/* disable top bar and top tabs */

/*
#TabsToolbar {
    visibility: collapse;
}

#titlebar {
    display: none;
}
*/

/* change menu background color */
#main-window,
#toolbarpaletteitem-menu-button,
#appmenu-toolbar-button {
    background-color: #6e0303 !important;
}

#main-menubar > menu[_moz-menuactive="true"] {
  background-color: hsla(91, 94%, 35%, 0.12) !important;
}