火苗日历 is a free Chrome add-on developed by golefig. It is a versatile calendar that allows users to easily view both the Gregorian and lunar calendars, as well as holidays. With its recent MV3 upgrade, the add-on offers a range of new features.

The add-on provides a comprehensive calendar view, allowing users to seamlessly switch between the Gregorian and lunar calendars. It also displays holidays, making it convenient for users to plan their schedules accordingly. The add-on's MV3 upgrade brings a fresh new look and enhanced functionality.

Please note that 火苗日历 is no longer being updated or maintained. For more features and updates, users are directed to visit the Chrome Web Store.

Overall, 火苗日历 is a useful and user-friendly calendar add-on for Chrome, offering easy access to both the Gregorian and lunar calendars, as well as holiday information.