Bug 658982. Go back to not allowing changes to line-height on inputs (but continue to allowing it for <button>s, for site compat reasons). r=dbaron

layout/style/forms.css

@@ -88,7 +88,7 @@ input {
   color: -moz-FieldText;
   font: -moz-field;
   text-rendering: optimizeLegibility;
-  line-height: normal;
+  line-height: normal !important;
   text-align: start;
   text-transform: none;
   word-spacing: normal;