In my case, I wrote a page which include a table like <table> <tr> <form_tag ....> <td> ...... </td> when submit this form in Firefox, the params in RAILS controller doesn't include the form's content, but it works with IE. I guess it's a problem related to certain browser mechanism, but still dont know how to solve it.
Put your form content in table cells like <td>, not <tr>.
