userChrome for Firefox on MacOS with Tab Center Reborn extension

userChrome.css

/* For MacOS & Tab Center Reborn */

.tabbrowser-tab {
  visibility: collapse;
}

#nav-bar {
  padding-left: 66px;
  margin-right: 80px;
  margin-top: -45px;
}

#tabbrowser-tabs {
  border-inline-start: none;
}

#navigator-toolbox {
  background-color: #f9f9fb !important;
}

#urlbar-container,
#TabsToolbar {
  margin: 3px 0;
}

#back-button,
#forward-button {
}

#PersonalToolbar {
  margin-top: 5px;
}

#sidebar-box #sidebar-header {
  display: none !important;
}

#nav-bar-customization-target {
  margin-left: 65px;
}

/*browser {
  border-radius: 10px;
}*/

/*
#sidebar-box #sidebar-header {
  display: none !important;
}

.titlebar-button {
  height: 27px !important;
}

#nav-bar {
  margin-top: -37px;
  margin-left: 65px;
  margin-bottom: -3px;
  margin-right: 140px;
  box-shadow: none !important;
}

[uidensity="compact"]:root .titlebar-button {
  height: 32px !important;
}
[uidensity="compact"]:root #nav-bar {
  margin-top: -32px;
}

#titlebar-spacer {
  background-color: var(--chrome-secondary-background-color);
}
#titlebar-buttonbox-container {
  background-color: var(--chrome-secondary-background-color);
}
.titlebar-color {
  background-color: var(--toolbar-bgcolor);
}

#main-window[inFullscreen="true"] #sidebar-box,
#main-window[inFullscreen="true"] #sidebar-box + splitter {
    visibility: collapse;
}

#sidebar-box #sidebar-header {
  display: none !important;
}*/