Input seems disabled for some reason, only with Firefox
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I got this problem with Firefox and input elements.

[JsFiddle][1]

In this menu, if you navigate to "Strumenti" -> "Colonne" -> "Prova6", you will see a table inside a "li" with two inputs and one combobox.
The inputs seems to be disabled but only with Firefox: with Chrome or IE it's all working as expected.

Any ideas?


  [1]: http://jsfiddle.net/nanny07/dmW9p/