Text unter Icon in Suchleiste

#navigator-toolbox #back-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Zur" !important;
}
#navigator-toolbox #forward-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Vor";
}
#navigator-toolbox #fullscreen-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Full";
}
#navigator-toolbox #nav-bar-overflow-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Mehr";
}
#navigator-toolbox #downloads-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Down";
}
#navigator-toolbox #back-button *,
#navigator-toolbox #forward-button *,
#navigator-toolbox #fullscreen-button *,
#navigator-toolbox #nav-bar-overflow-button *,
#navigator-toolbox #downloads-button * {
  display: none !important;
}

/* Navigationsleiste: Frei wählbare Texte anzeigen
 * 
 * Back-Button
 */
#navigator-toolbox #back-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Zur" !important;
}
/* Vorwärts-Button
 */
#navigator-toolbox #forward-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Vor";
}
/* Fullscreen-Button
 */
#navigator-toolbox #fullscreen-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Full";
}
/* Download-Button
 */
#navigator-toolbox #downloads-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Down";
}
/* Reload-Button
 */
#navigator-toolbox #reload-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Neu";
}
/* Mehr-Werkzeuge-Button
 */
#navigator-toolbox #nav-bar-overflow-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Mehr";
}
/* Menü-Button
 */
#navigator-toolbox #PanelUI-menu-button:after   {
  display: block !important;
  margin-left: 5px !important;
  content: "Menü";
}
/* Icons ausblenden
 * */
#navigator-toolbox #back-button *,
#navigator-toolbox #forward-button * {
  display: none !important;
}
/* Hier etwas komplizierter, sonst Probleme...
 * */
#navigator-toolbox #fullscreen-button *,
#navigator-toolbox #nav-bar-overflow-button *,
#navigator-toolbox #downloads-button *,
#navigator-toolbox #reload-button *,
#navigator-toolbox #PanelUI-menu-button * {
  max-width: 0 !important;
  border: none !important;
  padding: 0 !important;
  margin: 0 !important;
}