Modernizr/Modernizr — pull request #1327 by patrickkettner (2014-05-02 02:05:21+00:00)
Title: add support for FF 17-21 @supports

[as mentioned](https://github.com/Modernizr/Modernizr/commit/31371a95cf170e2e8214a1d179ad8bf8b0d4b755#commitcomment-6182612) by @Bo98