function FirefoxPlugin() {
  if ((typeof window.sidebar == "object") && (typeof window.sidebar.addSearchEngine == "function")){
    window.sidebar.addSearchEngine( "http://www.mybookmark.name/plugin/search.src",
                                    "http://www.mybookmark.name/images/MyB.gif",
                                    "mybookmark.name search",
                                    "mybookmark.name");
  }
}