Как мне установить флажок в firefox, и галочка и граница исчезают?
http://jsfiddle.net/moneylotion/qZvtY/
CSS
body { background: black; }
#conditions-form { color: white; }
#conditions-form input[type=checkbox] {
    display:inline-block;
    -webkit-appearance: none;
    -moz-appearance: none;
    -o-appearance:none;
    appearance: none;
    width:19px;
    height:19px;
    background: url('http://demo.somedomain.com/wp-content/themes/themename/images/care-plan-checkbox.gif') no-repeat top left;
    cursor:pointer;
}
#conditions-form input[type=checkbox]:checked {
    background:url('http://demo.somedomain.com/wp-content/themes/themename/images/care-plan-checkbox-checked.gif') no-repeat top left;
}
HTML:
<form id="conditions-form">
    <ul>
        <li>
            <input id="condition3" type="checkbox" name="conditions[condition3]"></input>
            <label class="checkbox" for="condition3">Conditions 3</label>
        </li>
    </ul>
</form>
