@-moz-document url("chrome://browser/content/browser.xul"){

.tabbrowser-strip {position:fixed;top:0px;width:100%!important;z-index:0;}
tab {-moz-user-select:-moz-none!important;z-index:0!important;-moz-border-radius-bottomleft: 0px!important;}
.tabbrowser-strip .tabbrowser-tabs{width:100%!important;}
.tab-drop-indicator-bar{position:fixed!important;top:0px;left:0px;width:100%!important;z-index:1;}
window{padding-top:31px!important}
}