Niconico-PepperMint is a versatile browser extension designed to enhance the user experience on Niconico Video. This subscription-based tool offers features such as a dark mode and a two-column layout for video content, addressing common user preferences and improving overall accessibility. The extension is tailored for Firefox users and allows for easy customization, enabling users to toggle features on or off via a quick settings toolbar or through the extension management interface.

Initially, all features are disabled by default, allowing users to enable only those that suit their needs after installation. A comprehensive list of functionalities is available on GitHub, where users can also report bugs or request new features. For updates and development progress, the project maintains an active presence on Twitter, keeping users informed about new enhancements and changes.