World Wide Web Consortium (W3C) The W3C Markup Validation Service. Worldspace FireEyes Web Accessibility Validation. Accessibility - Web Accessibility Checklist. The Web Developer Extension for Mozilla-based Browsers. You are here: Home > Resources > The Web Developer Extension for Mozilla-based Browsers Introduction to the Web Developer Extension The Web Developer Extension, created by Chris Pederick, is a very popular and useful resource for web designers.
This section will specifically focus on the tools this extension provides that can help developers create more accessible web content. Note This extension is designed for Mozilla, Mozilla Firefox and Netscape (version 6 or greater) and will run on any platform that these browsers support. When downloaded, it adds a configurable menu and toolbar to the browser with various tools to help Web developers. Using the Extension First, follow the instructions provided to download and install this extension. Next, using your browser, make sure that you know how to find the Web Developer menu items () or display the toolbar itself (). Disable The options under this selection allow different items to be disabled in a web site. Images Information Miscellaneous Outline.