CSE HTML Validator Compatible Firefox Extension

Firefox 4 support

The HTML Validator by Marc Gueury for Firefox extension (new window) supports recent versions of CSE HTML Validator (v10.02 or greater, any edition). In the options, choose CSE HTML Validator for the Algorithm (highlighted in the screen shot). View the page source to see the validation results.

NOTE: Make sure the extension version you have supports the version of Firefox you are using.

Select CSE HTML Validator for the Algorithm in the Options dialog