Twitch Lurker is a free Firefox extension designed to support Twitch streamers by automatically lurking in their streams when they go live. Users can build a favorites list based on their followed channels, allowing for quick access to multiple streams simultaneously. The extension requires users to have tabs with the Twitch player already open to count as viewers, making it essential for effective usage. It also provides a way to earn free channel points while supporting content creators.

To get started, users need to install the extension, log in with OAuth to access their follow list, and mark their favorite channels. The favorites can be prioritized, ensuring that users can easily keep up with their preferred streamers. The extension promotes community support and engagement within the Twitch ecosystem, making it a valuable tool for avid viewers.