/* Adjust Colors */
.tab-background:not([selected=true]),
.tab-background[selected="true"],
#titlebar-buttonbox,
#TabsToolbar,
#PersonalToolbar,
#urlbar,
#nav-bar {
  background: #31363b !important;
}
#PanelUI-menu-button{
  margin-right: 6px !important;
}
#back-button {
  margin-left: 6px !important;
}

/* No Black Line */
#navigator-toolbox{
  margin-top: -1px !important;
}

/* Height */
#nav-bar {
  min-height: 40px !important;
  z-index: 3
}
#urlbar {
  margin-left: 85px !important;
  border: none !important;
  box-shadow: none !important;
  min-height: 30px !important;
}

/* Adjust Pinned Tab Width */
.tabbrowser-tab[pinned="true"] {
  min-width: 40px;
}
label[pinned="true"] {
  display: none !important;
}
.tab-icon-image[pinned="true"] {
  margin-left: 4px
}

/* Clean Up */
.urlbar-icon,
.tab-close-button.tab-close-button,
#page-action-buttons,
#identity-box {
  display: none;
}
#urlbar .urlbar-input-box {
    text-align: center;
}
.urlbar-input-box > .urlbar-input::placeholder {
  opacity: 0 !important;
}

/* Autohide Tabs */
#TabsToolbar {
  min-height: 40px !important;
    margin-top: -40px !important;
  transition: all 0.3s ease 0s !important;
    -moz-box-ordinal-group: 2 !important;
}
#navigator-toolbox {
  transition: all 0.3s ease 0s !important;
}
#navigator-toolbox:hover {
  margin-bottom: -39px !important;
  transition: all 0.3s ease 0s !important;
}
#navigator-toolbox:hover > #TabsToolbar {
  margin-top: -1px !important;
  transition: all 0.3s ease 0s !important;
}

/* Remove Tab Borders */
.tabbrowser-tab::after, .tabbrowser-tab::before {
   border-left: none !important;
}
:root {
  --tabs-border: transparent !important;
}

/* Tab Line At Bottom */
.tab-line {
  -moz-box-ordinal-group: 2;
  min-height: 3px;
}

/* Tabs don't move when dragging. */
#TabsToolbar[movingtab] {
  padding-bottom: -0px !important;
}
#TabsToolbar[movingtab] > .tabbrowser-tabs {
  padding-bottom: -0px !important;
  margin-bottom: -0px !important;
}
#TabsToolbar[movingtab] + #nav-bar {
  margin-top: -0px !important;
  pointer-events: none;
}

/* Client Side Decorations */
#titlebar-buttonbox {
  height: 40px !important;
}
#nav-bar {
  margin-right: 84px;
  box-shadow: none !important;
}
#titlebar-buttonbox {
  z-index: 3 !important;
}
.titlebar-placeholder {
  display:none !important;
}