HoloSchedule is a Firefox browser extension designed to enhance the viewing experience of Hololive livestreams. It consolidates all scheduled and guerrilla livestreams from Hololive into a user-friendly interface. Key features include the ability to view ongoing lives, access a list of scheduled events for the upcoming week, and review lives that have ended within the last three days. Users can also set reminders for scheduled events and receive desktop notifications when guerrilla lives commence.

The extension supports multiple languages, including Japanese, English, German, and Simplified Chinese, catering to a diverse audience. It is compatible with various streaming platforms, such as Bilibili, Twitch, TwitCasting, Twitter Space, and YouTube. With ongoing development promising additional features, HoloSchedule aims to provide an all-encompassing solution for Hololive fans looking to keep track of their favorite livestreams.