code: public void addDefaultAccount()
              throws Exception {
          Account defaultAccount = new Account();
          defaultAccount.setName("Defaults");
          defaultAccount.setId(Account.DEFAULT_ACCOUNT_URI);
          defaultAccount.setDesc("Default settings for URLs not elsewhere in this list");
          defaultAccount.setUrlComponents(EnumSet.of(UrlComponents.Domain));
  
          addAccount(rootAccount, defaultAccount);
      }
docs: Adds the default account (used by Firefox).
  @throws Exception on exception