Fyrd/caniuse — pull request #609 by Vinz243 (2014-07-03 10:38:13+00:00)
Title: Update css-filters.json

Using FF nightly, the live examples don't work https://developer.mozilla.org/en-US/docs/Web/CSS/filter
However, gecko only accepts url() property (https://developer.mozilla.org/en-US/docs/Web/CSS/filter#Gecko_notes)