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

    /* hide tab close button */
    .tabbrowser-tab .tab-close-button {
      visibility: collapse !important;
    }
    .tabbrowser-tab:not([pinned]):hover .tab-close-button.always-right {
      display: none !important;
    }

    /* display close tab button on tab hover */
    .tabbrowser-tab:not([pinned]):hover .tab-close-button {
      visibility: visible !important; margin-right:3px !important;
    }
    .tabbrowser-tab:not([pinned]):hover .tab-close-button {
      display: -moz-box !important; margin-right:3px !important;
    }
    .tabbrowser-tab:not([pinned]):hover .tab-close-button.always-left {
      display: -moz-box !important; margin-right:3px !important;
    }

    /* Move close tab button on left */
    .tabbrowser-tab:not([pinned]) .tab-throbber { -moz-box-ordinal-group: 3 !important; margin-left:2px !important;}
    .tabbrowser-tab:not([pinned]) .tab-icon-image { -moz-box-ordinal-group: 2 !important; margin-left:2px !important;}
    .tabbrowser-tab:not([pinned]) .tab-text { -moz-box-ordinal-group: 4 !important; margin-left:2px !important; margin-right:-1px !important;}
    .tabbrowser-tab:not([pinned]) .tab-close-button { -moz-box-ordinal-group: 1 !important; margin-left:2px !important;}
    .tabbrowser-tab:not([pinned]) .tab-close-button[selected="true"] { -moz-user-focus: normal !important;}
    
    /* hide tab icon on tab hover */
    .tabbrowser-tab:not([pinned]):hover .tab-icon-image {
      display: none !important;
    }
    
    /* hide tab throbber, TMP Lock and Reload icons on tab hover */
    .tabbrowser-tab:not([pinned]):hover .tab-throbber,
    .tabbrowser-tab:not([pinned]):hover .tab-lock-icon,
    .tabbrowser-tab:not([pinned]):hover .tab-reload-icon {
      display: none !important;
    }

    /* TMP-Lock-Protect-Auto Reload Icons */
    .tabbrowser-tab:not([pinned]) .tab-reload-icon,
    .tabbrowser-tab:not([pinned]) .tab-protect-icon,
    .tabbrowser-tab:not([pinned]) .tab-lock-icon {
      -moz-box-ordinal-group: 2 !important;
    }
    .tabbrowser-tab:not([pinned]):hover .tab-protect-icon {
      margin-left:-19px !important;
    }