Make text-align work on <xul:textbox>. Bug 188597, patch by

afatecha@idea.com.py (Ariel Fatecha), r=jag, sr=jst, a=dbaron

xpfe/global/resources/content/xul.css

@@ -620,6 +620,7 @@ textbox[multiline="true"] {
 
 html|*.textbox-input {
   -moz-appearance: none !important;
+  text-align: inherit;
 }
 
 html|*.textbox-textarea {