diff --git a/mozilla/toolkit/themes/winstripe/global/scrollbox.css b/mozilla/toolkit/themes/winstripe/global/scrollbox.css
index ebb933e1176..aacf85d14d8 100644
--- a/mozilla/toolkit/themes/winstripe/global/scrollbox.css
+++ b/mozilla/toolkit/themes/winstripe/global/scrollbox.css
@@ -72,6 +72,11 @@
     -moz-image-region     : auto; /* cut off inheritance */
   }
 
+.scrollbutton-up > .toolbarbutton-text,
+.scrollbutton-down > .toolbarbutton-text {
+  display: none;
+}
+
 autorepeatbutton,
 .scrollbutton-up,
 .scrollbutton-down