codice:
<ul id="navlist">
	[*]Chi Siamo
	    <li id="active">Prodotti
	[*]Contatti
	[*]Links[/list]

il css è questo:
codice:
ul#navlist
{
width: 100px;
padding: 0px;
border-top: 0px;
margin: 0px;
background: #3B4461;
font-family: Verdana, Lucida, Geneva, Helvetica, Arial, sans-serif;
font-size:0.9em;
}
ul#navlist li
{
list-style: none;
margin: 0px;
border: 0px;
border-top: 3px solid #3B4461;
}
ul#navlist li a
{
display: block;
width: 100px;
padding: 4px;
border: 0px;
border-left: 10px solid #EFB611;
border-right: 3px solid #1D2049;
background: #3B4461;
text-decoration: none;
text-align: left;
}
ul#navlist li a:link { color: #fff; }
div#navcontainer li a:visited { color: #fff; }
ul#navlist li a:hover
{
border-color: #1D2049;
color: #fff;
background: #1D2049;
border-right: 3px solid #EFB611;
}
#active a:link, #active a:visited, #active a:hover, 
{
border-color: #1D2049;
color: #EFB611;
background: #1D2049;
border-right: 3px solid #EFB611;
text-align: right;
}
Su explorer tutto ok, su ff non si vede lo stato active.