Browser - Minimal floating scrollbars for firefox windows

/* AGENT_SHEET */
scrollbarbutton[sbattr="scrollbar-up-top"],
scrollbarbutton[sbattr="scrollbar-down-top"],
scrollbarbutton[sbattr="scrollbar-up-bottom"],
scrollbarbutton[sbattr="scrollbar-down-bottom"] {
-moz-appearance: none !important;
display: none !important;
}

scrollbar[orient="vertical"] {
-moz-margin-start: -15px;
min-width: 15px!important;
max-width: 15px!important;
-moz-appearance: none!important;
position: relative;
background-color: transparent!important;
background-image: none!important;
border: 0;
z-index: 2147483647;
-moz-box-align: start;
padding:1px 1px 1px 6px!important;
}

scrollbar[orient="horizontal"] {
margin-top: -15px;
min-height: 15px;
max-height: 15px;
-moz-appearance: none!important;
position: relative;
background-color: transparent;
background-image: none;
border: 0;
z-index: 2147483647;
-moz-box-align: start;
padding:6px 11px 1px 1px!important;
}

scrollbar thumb {
-moz-appearance: none !important;
background-color: rgba(80,80,80,0.4);
border-radius: 8px;
border: 0;
}

scrollbar[orient="vertical"] thumb {
min-height: 20px!important;
min-width: 15px!important;
max-width: 15px!important;
}

scrollbar[orient="horizontal"] thumb {
min-width: 20px!important;
min-height: 15px!important;
max-height: 15px!important;

}

scrollbar thumb:hover, scrollbar thumb:active {
background-color: rgba(12,153,213,1);
}

html div scrollbar {
-moz-margin-start: 0!important;
}