Firefox and Ajax: problem submitting multiple time

Hi to everyone,

I have a form with the following structure:

<% remote_form_for :trace, @trace do |f| %>

<%= submit_tag “Conferma” %>
<% end %>

This form contains a lot of data the user can change multiple times,
each time confirming
via the “Conferma” button.

This works like a charm under Safari, while with Firefox the information
are submitted only
Every other time I click on “Conferma”, nothing happens and the logs
show no information
about the button being pressed.

Is there anything I can do to solve this?

Thanks in advance for your help.