Mozilla is refreshing their MDN website and improving documentation efforts in 2010-2011. Key initiatives include a new homepage and developer landing pages, more communication channels for developers, increased developer engagement through surveys and documentation sprints, and replacing the current documentation platform. The new platform will prioritize features like a WYSIWYG editor, embedding HTML, and localization support in 1.0, with additional advanced features rolled out in subsequent 1.1 and 1.2 releases. The goals are to learn from past mistakes, improve the user experience, grow and engage the documentation community, and establish MDN as a premier destination for web developers.