Lightning Calendar

在与 Thunderbird 或 Seamonkey电子邮件完全集成的日历中整理您的日程安排和生活中的重要事件。 管理多个日历，创建每日待办事项列表，邀请朋友加入活动以及订阅公共日历。（Organize your schedule and life’s important events in a calendar that’s fully integrated with your Thunderbird or Seamonkey email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.）