BetterTTV, also known as BTTV, is a subscription-based browser extension designed specifically for Twitch and YouTube users. It enriches the viewing experience with a variety of features that enhance social interaction and customization. Users can access additional emotes, including global and channel-specific options, and enjoy an improved emote menu. The extension also allows for custom keyword targeting, making it easier to manage chat interactions, and provides functionalities such as split chat lines for better readability and the ability to view deleted messages and links.

Installation is straightforward; simply add the extension to Firefox and visit Twitch or YouTube to start utilizing its features. For YouTube, users must grant additional permissions during installation, which can be configured later if needed. BetterTTV also offers options to hide clutter from the interface, such as recommended channels and community highlights, streamlining the viewing experience while ensuring users can engage more effectively with the content.