Custom Chrome for TreeStyle Tabs

userChrome.css

#main-window .tab-close-button { display:none!important; }
#tabbrowser-tabs ~ #alltabs-button { display:none!important; }

.tabbrowser-tabs[treestyletab-mode="vertical"]
  .tabbrowser-arrowscrollbox > scrollbox {
  overflow-y: hidden !important;
}

/*.tabbrowser-tabs[treestyletab-mode="vertical"]
  .tabbrowser-tab {
  opacity: 0.85 !important;
}*/

.tabbrowser-strip[treestyletab-mode="vertical"] {
background: transparent !important;
background-color: #121112 !important;
}
#main-window:-moz-window-inactive
.tabbrowser-strip:not([treestyletab-style~="aero"])[treestyletab-mode="vertical"] {
background-color: #121112 !important;
}


.tabbrowser-tabs[treestyletab-mode="vertical"]
.tabbrowser-tab[selected="true"] {
border-top: none !important;
}
.tabbrowser-tabs[treestyletab-mode="vertical"]
.tabbrowser-tab[selected="true"] {
background: #FFF !important;
}
#main-window:-moz-window-inactive
.tabbrowser-tabs[treestyletab-mode="vertical"]
.tabbrowser-tab[selected="true"] {
border-top: none !important;
background: #FFF !important;
}

.tabbrowser-strip[treestyletab-tabbar-position="left"][treestyletab-tabbar-fixed="true"] {
border-right: none !important;
}

tabbrowser[treestyletab-mode="vertical"]
.treestyletab-splitter,
.treestyletab-tabbar-toolbar[treestyletab-mode="vertical"]
.treestyletab-splitter {
width: 0.01px !important;
min-width: 0.01px !important;
background: white !important;
}

#nav-bar * { visibility: visible; }