diff --git a/toolkit/themes/linux/global/jar.mn b/toolkit/themes/linux/global/jar.mn
index ba665adff1..a2f7382bc9 100644
--- a/toolkit/themes/linux/global/jar.mn
+++ b/toolkit/themes/linux/global/jar.mn
@@ -19,7 +19,7 @@ toolkit.jar:
    skin/classic/global/inContentUI.css
    skin/classic/global/listbox.css
    skin/classic/global/menu.css
-   skin/classic/global/menulist.css
+*  skin/classic/global/menulist.css
    skin/classic/global/netError.css
 *  skin/classic/global/notification.css
    skin/classic/global/numberbox.css
diff --git a/toolkit/themes/linux/global/menulist.css b/toolkit/themes/linux/global/menulist.css
index 30e55e11ba..73c1dfd49a 100644
--- a/toolkit/themes/linux/global/menulist.css
+++ b/toolkit/themes/linux/global/menulist.css
@@ -73,6 +73,10 @@ menulist[editable="true"] {
 menulist[editable="true"] > .menulist-dropmarker {
   display: -moz-box;
   -moz-appearance: menulist-button;
+%if MOZ_WIDGET_GTK == 3
+  min-width: 2.5em;
+  min-height: 2.25em;
+%endif  
 }
 
 html|*.menulist-editable-input {