http://www.html5rocks.com/en/features/presentation http://www.html5rocks.com/en/features/presentation The "Try this" demos on this page show features that Fire

http://www.html5rocks.com/en/features/presentation http://www.html5rocks.com/en/features/presentation The "Try this" demos on this page show features that Firefox supports, yet they only have "-webkit" prefixed styles so they don't work. Is the page out of date? Many of the features have been supported since Firefox 4 according to their own browser support chart.