Mozilla appearance Checkbox

i'm trying to personalize the appearance of Checkbox but this only works in Google Chrome for mozilla doesn't work i dont know how to fix this here is my code:

Example:

Checkbox on jsfiddle.net

¡Please! before you post any response see example in the 2 browsers in this case Chrome and Mozilla.

images from google chrome and mozilla

Chrome:

Mozilla

CSS:

#div-tallas .seleccion-talla .btn-default{
padding: 6px 7px;
font-weight: 600;
font-size: 1.2em;
letter-spacing: 0px;
min-width: 40px;
margin-left: 1px !important;
}
#div-tallas input[type="checkbox"] {
/* 1 */
display: inline-block;
height: 36px;
width: 36px;
border: 2px solid #000;
-moz-border: 2px solid #000;
/* 2 */
overflow: hidden;
/* 3 */
margin-top: -4px;
vertical-align: middle;
/* 4 */
-webkit-appearance: none;
-moz-appearance: none;
outline: 0;
/* 5 */
background: #e5e4e4;
-moz-background: #e5e4e4;
}
/*
* Checked
*/
#div-tallas input[type=checkbox]:checked {
/* 1 */
display: inline-block;
height: 36px;
width: 36px;
border: 2px solid #e5e4e4 !important;
-moz-border: 2px solid #e5e4e4 !important;
/* 2 */
overflow: hidden;
/* 3 */
margin-top: -4px;
vertical-align: middle;
/* 4 */
-webkit-appearance: none;
-moz-appearance: none;
outline: 0;
/* 5 */
background: #ff6500 !important;
background-color: #ff6500 !important;
padding: 2px;
transition: background 0.4s linear 0s, color 0.4s linear 0s;
}
/* Checkbox */
#div-tallas input[type=checkbox]:checked:before,
#div-tallas input[type=checkbox]:indeterminate:before {
content: "\f00c";
font-family: FontAwesome;
font-size: 32px;
-webkit-font-smoothing: antialiased;
text-align: center;
line-height: 26px;
color: #e5e4e4;
z-index: 888;
margin-left: -1px;
}
#div-tallas input[type=checkbox]:indeterminate:before {
content: "\f068";
}