Firefox/SeaMonkey extension
The Total Validator extension provides one-click validation. Once installed all you do is browse to the page you want to validate then click on the 'TV' icon in the browser status bar.
All of the options available with the online service are available with the extension through a series of tabbed pages on the options dialog:
In normal use the extension open a new browser tab and requests the online service to validate the pages. However, the extension is fully integrated with the desktop tool, so if you have this installed you can validate pages locally instead, and have access to many more validation options, such as validating a whole website with just one-click.
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Details of recent changes. Please read the license before downloading.
Just click on the link below and the extension will be automatically recognised by your browser and the installation process will begin. This same link can be used to upgrade an existing extension to the latest version.
Total Validator Firefox/SeaMonkey Extension v6.7.0
Alternative download from Mozilla
Once you reboot your browser you'll notice that a 'TV' icon appears in the status bar of your browser and you're ready to starting using it as described below.
The extension is fully tested on Windows, OS X and Linux platforms, and by the Mozilla organisation. See the support section for any issues you may have,
Note: There is a known issue with installing any extension, which incorrectly reports them as being corrupted or invalid. If this happens right mouse click on the first link above, save the .xpi file to your computer, then drag the file (or open it) in your browser.
Operation
Using the extension couldn't be easier. Just browse to the page you want to validate then click on the 'TV' icon in the status bar. Alternatively just right mouse click and choose Total Validator from the menu, or you can add an icon to your toolbar if that's your preferred method.
All of the validation options available with the online service are available including screen shots. Just right mouse click (command+click for Macs) the 'TV' icon or toolbar button, or select 'Total Validator Options' from the browser Tools menu to set the options you wish to use.