Bug 431017: Self describing text in search fields should not be italicized on Vista Classic, patch by Ehsan Akhgari <ehsan.akhgari@gmail.com>, r=me, a=mconnor

toolkit/themes/winstripe/global/textbox-aero.css

@@ -1,5 +1,5 @@
 %include textbox.css
 
-textbox[empty="true"] {
+textbox[empty="true"]:-moz-system-metric(windows-default-theme) {
   font-style: italic;
 }