News of a launch possibly as early as March 9 comes from web developer Sören Hentzschel, who says it will initially be available in the US, Canada, UK, Germany, Austria, Switzerland, France, Italy, Spain, Belgium, the Netherlands, Ireland, Malaysia, New Zealand and Singapore.

Mozilla’s main motivation for MDN Plus is a new source of income, which Henzschel believes will keep MDN Web Docs as a platform that Mozilla has been providing for free for over 16 years. According to his information, which confirms what we reported last May, the price is likely to be $10/month or $100/year, which is the cheaper option.

Mozilla announced MDN Plus last May and then tested an early version. As a premium service, it offers subscribers exclusive content and additional features in addition to MDN, which will continue to be available for free. The main advantage of MDN Plus is that you can download content for offline access or even print it on paper, as well as create your own personal collection of documentation that you can access from any device. Other advanced features are annotations and bookmarks that can be used with both free and paid content and themes for platform customization and personalized styling, useful in the context of custom documentation. Another feature is a notification of changes to certain articles, which keeps you up to date with the latest developments.