nohas css

/* AGENT_SHEET */
/*preview http://puu.sh/8nyGr.png*/

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

#main-window #appmenu-button,
#appmenu-toolbar-button {
  background: url('http://i.imgur.com/ovoQtdI.png')!important;
  background-repeat: no-repeat !important;
  background-position: center !important;
  width: 1px !important;
  margin-bottom: 2px !important;
  margin-left: -20px !important;
  margin-right: 0px !important;
  margin-top: 10px !important;
  height: 17px !important;
  position: relative !important;
  -moz-transform: scale(1) !important;
  opacity: 1 !important;
  border:none !important;
}

#appmenu-button,
#appmenu-toolbar-button {
 border:none !important;
  box-shadow: none !important;
}

#appmenu-button .button-icon,
#appmenu-button .button-text,
#appmenu-button .button-border{
display: none !important;
}

#appmenu-button .button-text,
#appmenu-button .button-menu-dropmarker
{
display:none!important;
}


#tabbrowser-tabs tab .tab-close-button {
opacity:0!important;
}


.tabbrowser-tab {

background: RGBA(251,251,251,.1)!important;
padding: 4px !important;
border-radius: 3px !important;
height: 25px !important;
width: 0px !important;
text-align: center !important;
margin-right: 2px !important;
color: #fbfbfb !important;
margin-bottom: 6px !important;
border: 1px solid RGBA(64,64,64,.3) !important;
text-shadow:rgba(40,40,40,.4) 0 0 1px!important;
}

.tabs-newtab-button {
display: none !important;
}

#TabsToolbar{
margin-left: -45px !important;
}

.tab-icon-image {
display: none !important;
}
.tabbrowser-tab[selected] {
background: RGBA(251,251,251,.3) !important;
padding: 4px  !important;
width: 0px !important;
}