for firefox dark theme

Author: makotokw

sass/_forms.scss

@@ -136,9 +136,12 @@ $btnBorder: #ddd;
 
 // Fields
 
-input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="tel"], input[type="url"], textarea, select {
+input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="tel"], input[type="url"]
+, input.date
+, textarea, select {
   outline: none;
   padding: 3px 4px;
+  color: $text-color;
   background-color: #fff;
   border: 1px solid #ccc;
   box-shadow: inset 0 1px 2px rgba(0,0,0,0.075);