HTML5 datalist not working in Firefox 6.0.2

Though, most online resources on HTML5 mention that datalists are supported in Firefox 4 & above, but it does not work with my Firefox 6.0.2.

Also tried the example at http://www.html5tutorial.info/html5-datalist.php. Does it work only in Firefox 4? Is there a way to check the supp开发者_运维问答ort with Modernizr?

Regards, S