--- a/mobile/chrome/content/content.css
+++ b/mobile/chrome/content/content.css
@@ -75,17 +75,17 @@ select[size="1"] scrollbarbutton {
   display: block !important;
 }
 
 /* Override inverse OS themes */
 html select,
 html button,
 html textarea,
 html input:not([type="image"]) {
-  -moz-border-radius: 0.25em;
+  -moz-border-radius: 3px;
 }
 
 html select[size],
 html select[multiple],
 html select[size][multiple],
 html textarea,
 html input:not([type="image"]) {
   border-style: solid;