Page validator - Плагин Mozilla который утверждает текущую веб-страницу используя W3C сервис утверждения веб-сайтов
  18 KB | Mac OS X | Freeware

Page Validator is a Mozilla Firefox extension which validates the current webpage using W3C's website validation service. By right-clicking and selecting "Validate Page" a new tab will open with validation results. Similarly this can be done from the Tools menu.

Validates a page using the W3C Markup Validation Service. Adds an option to the right-click context menu and to the Tools menu to allow for easy validation of the current page. Opens the results in a new tab. This is a simple extension that will work only for online pages.

Note: The W3C Markup Validation Service allows you to validate behind a site secured with HTAccess by allowing you to login for it.

Requirements:

· Firefox 1.0 or later