(X)HTML5 Checker by Francesco De Stefano

3.3 Stars out of 5

(X)HTML5 Checker version history - 4 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 0.0.4resigned1
Released 26 Apr 2024 - 30.55 kB
Works with firefox 48.0 and later
Source code released under Mozilla Public Licence 2.0
You'll need Firefox to use this extension
Download Firefox and get the extension
Download file
Older versions
Version 0.0.3
Released 3 Apr 2019 - 30.52 kB
Works with firefox 48.0 and later
Source code released under Mozilla Public Licence 2.0
Download file
Version 0.0.2
Released 6 Dec 2018 - 106.31 kB
Works with firefox 54.0a1 and later
Source code released under Mozilla Public Licence 2.0
Download file
Version 0.0.1
Released 5 Dec 2018 - 105.62 kB
Works with firefox 54.0a1 and later
Source code released under Mozilla Public Licence 2.0
Download file

Latest version