Jquery to unselect element

I'm trying to unselect element or not allow select element to prevent this:


How can i do this?? This only happens on FF, on IE8 its fine..
My html:

<ul>
                <li class="selecionado">
                    <a href="#"><p>HOME</p></a>
                </li>
                <li>
                    <a href="#"><p>ESCOLA</p></a>
                </li>
</ul>

SOMEBODY HELP ME ! :)

• Topic Participants

• ben.quintino

• Kevin Boudloche

  

• jamandyjam