Css scrollbar not working in firefox -

i use -webkit-scrollbar css code, works safari , chrome:

::-webkit-scrollbar { width: 5px; } ::-webkit-scrollbar-button {width: 8px;height:5px;} ::-webkit-scrollbar-track {background:none;} ::-webkit-scrollbar-thumb {background:#000;} ::-webkit-scrollbar-thumb:hover {background:#000;} 

how can same thing firefox? (i don't want using jquery)