|   Documentation topics | 
  | Introduction to Web developmentA guide to learning how to develop for the Web.HTMLHyperText Markup Language is the basic language for creating web pages and  other documents displayed in a browser.JavaScriptJavaScript is the most commonly used scripting language for developing web  applications; it's also used in the development of Mozilla-based software.CSSCascading Style Sheets make it possible to do advanced layout and page  design on the Web.AJAXAsynchronous JavaScript and XML isn't so much a technology as a combination  of technologies; using JavaScript and other modern web technologies together to  create dynamic web applications.
 | Web standardsLearn how to make your Web site or application reach the largest number of  users through compatibility with the open Web.DOMThe Document Object Model is an API for HTML and XML documents, providing a  structural representation of the document that you can modify in order to alter  its visual presentation.XHTMLExtensible HyperText Markup Language is an XML-based HTML-like language that  offers a stricter syntax than HTML.SVGScalable Vector Graphics is an XML markup language for describing 2D vector  graphics.Mozilla Web developer FAQFrequently asked questions from Web developers.  With answers!        
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 |   Add-ons topics | 
  | Submitting an add-on to AMOProvides helpful information for add-on developers to help them properly  package and deliver their add-ons.  This includes information about  addons.mozilla.org, Mozilla's add-on distribution web site.ExtensionsExtensions add new functionality to Mozilla applications such as Firefox,  SeaMonkey and Thunderbird. They can add anything from a toolbar button to a  completely new feature.Plug-insInformation about how to create plug-ins, which are binary components that  let Mozilla based software display content they can't handle natively.JetpackBrowser extension development for everyone. Jetpack developers only need to  know the tools of the modern web: HTML, CSS, and JavaScript.
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https://developer.mozilla.org/en/Web_Development