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

@-moz-document url-prefix("chrome://mozapps/content/extensions/extensions.xul") {

#restartfirefox-button, #restartfirefox-fileMenu2 { -moz-box-ordinal-group: 1 !important; }
#restart-spacer, #infolister-buttonMenu + spacer { -moz-box-ordinal-group: 2 !important; }

}