@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document url(https://www.chipmark.com/Manage), url(https://www.chipmark.com/Main?target=pluginManage) {

  #tree_trash {display: none !important;}
  #manage_bar_table > TBODY > TR:last-child > TD:last-child > TABLE > TBODY > TR > TD:first-child {display:none!important}

}