This works fine in my Firefox 3.5.6
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<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<p class="s">some content</p>
<script src="jquery.js"></script>
<script>
$(document).ready(function() {
$(".s:gt(2)").css("color", "red");
});
</script>
</body>
</html>
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Show us your code....
