There are two types of product documentation: end-user documentation and developer-focused documentation.
'''End-user documentation''' is written for users of Mozilla's products and explains how are our products work and how to use them. In general, this type of content belongs on [http://support.mozilla.org SUMO].
'''Developer-focused documentation''' is written for programmers and includes content such as technical reference information and building and debugging instructions. In general, this type of content belongs on [http://developer.mozilla.org MDN].