#PersonalToolbar { /* bookmarks toolbar */
    -moz-box-ordinal-group: 2 !important;
}
#TabsToolbar { /* tab bar */
    -moz-box-ordinal-group: 3 !important;
}
#navigator-toolbox::after {
    -moz-box-ordinal-group: 4;
}
#navigator-toolbox:not([style*="margin-top"]) #PersonalToolbar { /* bookmarks toolbar */
    -moz-box-ordinal-group: 2 !important;
}
#navigator-toolbox:not([style*="margin-top"]) #TabsToolbar { /* tab bar */
    -moz-box-ordinal-group: 3 !important;
}
#navigator-toolbox:not([style*="margin-top"]) #navigator-toolbox::after {
    -moz-box-ordinal-group: 4 !important;
}
#nav-bar{
    border-top-width: 0px !important;
}
#main-window[windowtype="navigator:browser"]{
background-color: transparent !important;
}


#toolbar-menubar, #menubar-items, #main-menubar {
  background: #F9F9FA !important;
  -moz-appearance: unset !important;
}

#TabsToolbar {
  background: #F9F9FA !important;
  -moz-appearance: unset !important;
}

.tab-line:not([selected]) {
    display: none !important;
}