firefox macos userchrome that removes the tab bar

userChrome.css

#navigator-toolbox {
  --tabs-border-color: none;
}

#TabsToolbar {
    /* visibility: collapse !important; */
}

#tabbrowser-tabs .tabs-newtab-button {
  visibility: collapse;
}

#tabs-newtab-button {
  visibility: collapse;
}

#TabsToolbar #new-tab-button {
  visibility: collapse;
}

.titlebar-placeholder[type="pre-tabs"] {
  border: none;
  border-inline-end: none !important;
}

.titlebar-spacer[type="pre-tabs"] {
  border-inline-end: none !important;
}

tab { display: none !important; }

toolbar {
  -moz-appearance: -moz-mac-vibrant-titlebar-dark !important;
  -moz-font-smoothing-background-color: -moz-mac-vibrant-titlebar-dark !important;
}

#sidebar-box {
  -moz-appearance: -moz-mac-vibrant-titlebar-dark !important;
  -moz-font-smoothing-background-color: -moz-mac-vibrant-titlebar-dark !important;
}

#urlbar {
  -moz-appearance: -moz-mac-vibrant-titlebar-dark !important;
  -moz-font-smoothing-background-color: -moz-mac-vibrant-titlebar-dark !important;
}

#sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
  display: none;
}

/* Background for Light and Dark themes */
#main-window[lwthemetextcolor="bright"] #TabsToolbar,
#main-window[lwthemetextcolor="dark"] #TabsToolbar {
  background-color: var(--chrome-secondary-background-color) !important;
  background-image: none !important;
}
#main-window[lwthemetextcolor="dark"] .scrollbutton-up,
#main-window[lwthemetextcolor="dark"] .scrollbutton-down,
#main-window[lwthemetextcolor="dark"] .tabs-newtab-button,
#main-window[lwthemetextcolor="dark"] #new-tab-button,
#main-window[lwthemetextcolor="dark"] #alltabs-button {
  fill: var(--lwt-text-color) !important;
}