Html Validator nga Marc Gueury

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing.

***** See Web Extension notes below ****

The extension can validate the HTML sent by the server or the HTML in the memory (after Ajax execution).

The details of the errors are seen when looking the HTML source of the page.

The extension is based on Tidy and OpenSP (SGML Parser). Both algorithms were originally developed by the Web Consortium W3C. And now extended and improved by a lot of persons. Both algorithms are embedded inside Mozilla/Firefox and makes the validation locally on your machine, without sending HTML to a third party server.

Each algorithm has advantages and inconvenients. The program will give you the choice at startup. But mostly,

- The SGML parser is the same program than the one running behind validator.w3.org.
- Tidy has accessibility check for the 3 levels defined in WAI
- W3 Online validator to validate HTML 5 pages

The extension is translated in 17 languages.

Or the forum:
http://www.htmlpedia.org/phpBB/

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HTML Validator 0.98 is the first Web Extension version.
Firefox old XUL extension do not work anymore with Firefox 57.
It is a complete rewrite of the code.

The extension works now differently:
* There is a new tab in Developer tools: Html Validator.
* The validation happens only when the "Developer Tools" is open.
* The extension uses a new version of Tidy 5 compiled from C to Javascript. It works now on all platforms.
* It works in Chrome

Some features from the 0.97 are still missing. See here for more details.

Any remark, bug report, patch, help is welcome !!! Email: mgueury@skynet.be.
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Sponsor:
- icons8.com