定位固定Firefox

Question

在Firefox中，当position设置为fixed时，它的行为类似于绝对值。有没有办法改变这种行为，或者只是让我的表格元素在Chrome中表现得像：Fiddle

JS：

$('.ui.sticky').sticky();
$( '#table tbody tr td' ).click(function() {
  $( "#table .ui.sticky" ).sticky('refresh');
});

HTML：

<table class="ui cellled striped table" id="table">
    <thead>
        <tr>
            <td class="ui sticky">asdasd</td>
            <td class="ui sticky">asdasd</td>
            <td class="ui sticky">asddd</td>
            <td class="ui sticky">asdda</td>
            <td class="ui sticky">asdddd</td>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>raaarararar</td>
            <td>raaarararar</td>
            <td>raaarararar</td>
            <td>raaarararar</td>
            <td>raaarararar</td>
        </tr>
    </tbody>
</table>