To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
OK ish I suppose Rated 2 out of 5 stars
Firstly, the description above is confused to say the least....
"available on Windows only"
"platforms supported, OS X"
"Just a reminder, this is NOT available on mac OSX"
.....make up your mind mate ;)
Seriously though, this simply means you have to go to the website to install it if you're not a windows user, but then the issue arises that it will NEVER auto-update via the firefox interface.
Secondly, this app has a PPC version, but one that hasn't been updated FOR 3 YEARS. I'm forced to use version 0.7.9.5.
Maybe this is why this validator seems to miss more errors than MOST other firefox add-ons available?
It also has an issue with iFrames that other validators don't have.
Finally, W3C online is much more comprehensive (leading me to believe that all this needs is an up-to-date PPC build or a OS X UB build to bring it back up to spec?).
Either way, currently "Total Validator" is better at detecting issues (and conforms to W3C properly), whereas this one has the better GUI and doesn't send the html data to another site.
overall I'd give it 5/10 as it stands.
It is freeware
If you want a PPC version of the 0.841 validator, a Mac OSX PPC user will have to compile it.
There are compilation instructions here:
Unhappily, all my Mac buddy are on Intel now and are not interested in compiling a PPC version.
Finds errors W3C misses Rated 5 out of 5 stars
This is incredible. At first I thought it was not working right on pages that had been checked with W3C. But then I realized it was finding errors that W3C missed! Thanks guys.
Linux Rated 3 out of 5 stars
I have been using this for quite a while and I am really fond of it. Is there any chance the latest version (which supports SGML testing and therefore XHTML/Strict) will be available for Linux?
Right now I have to switch to a windows PC for my final testing - would be nice to do that from my development PC.
Thanks for a great tool!
A God-send! Rated 5 out of 5 stars
I might be the pickiest person I know when it comes to HTML validation. I have been willing to pay $150 for the CSE HTML Validator in the past because it would catch nesting errors that other validators would miss (it's still great for batch validations). But I don't need that any more - I have something better - the Firefox Html Validator.
It's so darn convenient that I can test my site and just glance at the little icon at the bottom of each page to look for HTML errors. They have made great strides forward in the past few months and now I rely on it for everything. Except for batch validations, this is going to put every other validator out of business.
The suggestions for how to fix errors are often very insightful and relevant. It teaches you how to write good HTML as you use it.
And speaking of using it, that's my only complaint. Now that it's so easy to write valid HTML, why doesn't everyone do it? There is no longer any excuse!
Thank you, thank you, thank you for creating this!
the best offline validator ever :D Rated 5 out of 5 stars
as a junior web-developer i'm using this tool(along with the http://validator.w3.org/ online validator) to validate my pages. it works great.
still i'd like to suggest some improvements though, because my page validates at http://validator.w3.org/, but this validator gives a warning:
anyway, great tool and i advice any web developer to use it!
One of the best plug-ins for web developers. Rated 5 out of 5 stars
I think every web developer have to use this tool!
Thx a lot for this plug-in!
Brilliant! Rated 5 out of 5 stars
Simply the best of all available validators for FireFox!This review is for a previous version of the add-on (0.8.3.9).
View source speed Rated 5 out of 5 stars
Hi Timki, the view source speed problem is only happening when the page is very very big. To have an immediate answer, remove the "line highlighting" and the "line numbers" in options.This review is for a previous version of the add-on (0.8.3.9).
Too slow Rated 2 out of 5 stars
Very good extension, extremely useful for web developers, except for one major problem which is that it runs faaaar too slow. The 'view source' window takes absolutely ages to come up. Needs work.This review is for a previous version of the add-on (0.8.3.9).
Nice but limited validator for the Web developer Rated 4 out of 5 stars
It's a useful extension but it lacks XHTML strict validation for example, instead you have to manually use the W3C online validation tool. But the extension is great to quickly check for HTML/CSS websites or accessibility issues.This review is for a previous version of the add-on (0.8.3.9).
Top add-on Rated 5 out of 5 stars
Such a great add-on, right up there with Firebug and Web developer extension as essential add-ons. The new OpenSP validator as used by the w3c validator is a fantastic new addition.
Certainly alot easier to use than installing the w3c validator on a windows dev machine. Keep up the great work.