Total Validator
HTML / XHTML / WCAG / Section 508 / CSS / Links / Spelling

Home | Tools | Downloads | Purchases | Support | Site Map

Browser extensions

These are all free to use, but please read the associated licence before downloading them.

They are all fully tested on Windows, OS X and Linux, and they all need the Basic tool or the Pro tool to be installed.

Download Chrome extension Google Chrome extension v2.4 [License] [Recent changes] [Documentation]

Download Firefox extension Firefox extension v2.0.1 [License] [Recent changes] [Documentation]

Download original Firefox extension Original Firefox extension v8.8.0 [License] [Recent changes] [Documentation]

Note: If you have problems installing the Firefox extensions, right mouse click on the appropriate link above, save the .xpi file to your computer, then drag this onto your browser.