Live Chat is the most interactive way to help with the Firefox Support Community. Live Chat contributors are able to assist Firefox users follow documentation and troubleshoot new issues that are encountered.
Whether you are a Firefox expert or a beginning user, you can help the Live Chat community. Most solutions to questions asked in Live Chat can already be found in the knowledge base, so anyone can get started helping users find answers or walk through solutions. As you become more familiar with how to troubleshoot Firefox, you can start to take more advanced questions and walk users through troubleshooting techniques.
Download Spark
Live Chat helpers need the open source Spark instant messenger client. The Spark client, available on Windows, Mac, and Linux, allows contributors to accept chats from a queue and use advanced features like canned responses. See Installing and Configuring Spark for a detailed guide on setting up the Spark client.

Get Started - Once you have Spark, it's easy to get started helping.

Important details
If you have questions about getting started with Live Chat, you can ask in the #sumo channel on irc.mozilla.org.