HTML Development Tools

• Firefox
  • As of this writing, Firefox still has the best developer plugins available, though Google Chrome is quickly catching up. Chrome ships with a pretty impressive Firebug-like set of developer tools.
• Firebug: http://getfirebug.com/
  • An invaluable plugin for Firefox that allows you to, among other things
    1. view and manipulate the HTML, CSS, and DOM of your page in real time
    2. debug javascript
    3. enter and execute javascript in a console on the fly in the context of the current page
    4. inspect all the HTTP requests and responses made by the current page in real time - a life-saver for AJAX work.
• HTML Validator: http://users.skynet.be/mgueury/mozilla/download.html
  • Integrates W3C validation with the view source window.
  • Validates internal server pages that are not accessible by the public W3C web service.
  • Might require the installation of the libstdc++5 and/or libxul-dev packages on some Linux platforms. See special instructions on http://users.skynet.be/mgueury/mozilla/faq.html.
  • In the plugin's options, set the algorithm to SGML Parser not HTML Tidy.