"Security Phase" color change for Firefox

Author: neer17

res/css/_common.scss

@@ -139,6 +139,10 @@ input::placeholder,
 textarea::placeholder {
     opacity: initial;
 }
+input::-moz-placeholder,
+textarea::-moz-placeholder {
+    opacity: .6;
+}
 
 input[type=text], input[type=password], textarea {
     background-color: transparent;