fieldset firefox overflow CSS fix

Question

How can i set content to overflow in fieldset? It works in IE but not in FF.

Same functionality I can achieve with div element in both browsers.

Sample:

<fieldset style="border:thin solid #990033;">
    <legend>test</legend>
    <div style="background-color:#0033FF; height: 30px; width:800px;" >FIXED DIV</div>
</fieldset>
<p>&nbsp;</p>
<div style="border:1px solid #999999; padding:0 8px 8px 8px;">
    <label style="background-color:#FFFFFF; padding:0 5px; position:relative; top:-10px;" >test</label>
    <div style="background-color:#0033FF; height: 30px; width:800px;" >FIXED DIV</div>
</div>

Answer 1

Found solution, add conditional css style:

fieldset {
    display: table-column;
}
<!–[if IE]>
fieldset {
    display: block;
}
<![endif]–>

Answer 2

This is actually a bug in Firefox and it exists for almost 8 years. :D https://bugzilla.mozilla.org/show_bug.cgi?id=261037

Answer 3

From a blog post by Emil Björklund:

body:not(:-moz-handler-blocked) fieldset {
  display: table-cell;
}