my code

#personal-bookmarks toolbarbutton {
  margin: 0px 3px 2px 3px !important;
  padding: 4px 4px 4px 4px !important;
}

#personal-bookmarks .toolbarbutton-text {
  font-size:12px;
}

#nav-bar {
  padding-top: 3px;
  padding-bottom: 3px;
  padding-left:4px;
}

#TabsToolbar {
  padding-top:10px;
 padding-bottom:10px;
}

.tab-text {
  font-size: 12px !important;
}

.menuitem-iconic, .menu-iconic, menuitem[image] {
    padding-top: 3px !important;
    padding-bottom: 3px !important;
}