XUL and textbox CSS styles

If you want to change the background color for HTML input text boxes you simply set the background-color style attribute, very obvious.

.my-textbox {
background-color: red;
}

If you want to make same thing for XUL textboxes you apply the same style attribute discovering it doesn’t work…

Ehm.. It works but you must disable standard mozilla behaviour using -moz-appearance attribute

.my-textbox {
-moz-appearance: none;
background-color: red;
}

Little lesson learned