Html Validator extension xpi

Html Validator

By Marc Gueury

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Download and Install The Html Validator Xpi file For Firefox Browser. Also, Html Validator add-ons Install the latest version Just A simple click. No need for Any Registration. We do not provide any fake version of Mozilla Firefox Browser with free viruses.



Html Validator extension for Firefox

Mozilla Firefox is the most secure and privacy-focused web browser. For instance, Html Validator extension xpi file For Firefox web browser. It has been built to offer you the best in security, privacy, and choice. Maybe, Html Validator add-ons development by the Marc Gueury. Html Validator Xpi file have been tested by the tech experts and have been found to be trustworthy.

If you are tired of spending so much time surfing the internet and searching for various resources, we have come up with an website of extensions that help you do your work in a faster way. But if you’re not careful, they can also seriously harm it. Here’s how to install them properly so that they don’t ruin your browsing experience in the long run.

Download Html Validator extension xpi file For Firefox

Are you looking For Html Validator extension xpi file For your using Firefox Computer Browser? The article will share Html Validator extension Xpi file for Mozilla Firefox Browser that will make your online browsing experience more secure, easy and fun.

Mozilla has been making a lot of changes lately. In addition to the new features in Firefox Quantum, Mozilla has also announced that they are going to replace the traditional Html Validator extension xpi file For the Firefox web browser. Even more, gives you a great collection of the best extensions to enhance your web browsing experience. You can download these extensions for free on the website below. Also read : RESTer

Html Validator add-ons Features for Firefox

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 56, use 0.974 (see all versions below).
For Firefox 57, see Web Extensions.

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
– 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:

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:


How to install Html Validator extension xpi file For Firefox?

Here are explains how to install Html Validator extension xpi file from the Firefox extension manager.

  • Fast open your Firefox Browser
  • Tap the menu
  • Then click the add-ons menu item
  • Then click the (+) Button
  • Then tap (add) Button
  • After installing the Firefox extension must be needed to enable private browsing.
  • Then tap to (Okay Got it) Finish. Thanks

If you can full fill this step easily download and install it in your firefox browser. faintly you have any problem check your browser and again check the download link below.

How do I update Html Validator add-ons for Firefox?

When releasing a new version Html Validator extension for Mozilla Firefox, Automatically Update your Firefox Html Validator add-ons xpi file For Firefox Browser. No need for any click.

It has a total of 900+ million users worldwide and 300+ million active users per month.  The Html Validator  add-ons community that exists around Firefox, the open-source browser extension that is free to use, allows you to customize and control your browsing and surfing experience.

Conclusion: The Firefox browser is widely used around the world, and Html Validator extension is one of the best ways to get more out of it. You can find out how to download the firefox Extension in our blog post. Which other extensions are you using? Let us know in the comments below!

Please one more PV Before Get Code


Author Details

Alamgir Vi

Technical Information

Package Name:Marc Gueury
File size:2.65 MB

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