Check For HTML 5 Errors On Any Webpage In Firefox

HTML5 is the next generation of HTML (Hyper Text Markup Language), which is used for the structuring and presentation of content produced on the World Wide Web. HTML 5 Validator is a Firefox extension that allows checking the HTML5 structure (via right click context menu) of any webpage(s) and provides with an overview of any possible errors in the validation process. It functions much like the widely used Firebug extension which is used to debug CSS, HTML, and JavaScript issues.

To inspect for HTML validation issues, right-click a webpage and choose HTML 5 Validation from context menu.

This will open a separate window with HTML validation information of the web page. In case you are wondering why anyone would use HTML 5 Validation instead of Firebug? The answer is simple. HTML 5 Validation is specifically designed to provide in-depth information about HTML related issues on a webpage (including the under development HTML 5), whereas Firebug despite acting as a comprehensive toolkit for developers can appear quite convoluted. This extension on the contrary provides straightforward and easy to debug information for the HTML5 format of a page.

HTML 5 validation

HTML 5 Validator extension works with Firefox 3.5 – 3.6.*.

HTML 5 Validatior Extension for Firefox

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About Alyse Kalish

Alyse Kalish
As an Associate Editor for The SalesJobInfo, Alyse is proud to prove that yes, English majors can change the world. She calls many places home, including Illinois where she grew up and the small town of Hamilton where she attended Colgate University, but she was born to be a New Yorker. In addition to being an avid writer, Alyse loves to dance, both professionally and while waiting for the subway.

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