On my computer, Firefox (5.0) does not show the forward and back navigation buttons on one particular website. But on another computer with Firefox 5.0 the navigation buttons are visible and functional. I checked the "Websites look wrong" suggestions, but it isn't page styles, zoom level, font size, or script. The navigation links appear to be in a table. I see the other cells, but not the forward and back links. Here is an example: <title>Diario de Yucat&aacute;n - Ciudadanos rechazan la violencia</title> <div id="paging" align="center"> <div id="notatitu">Ciudadanos rechazan la violencia</div> <table height="25" border="0" cellpadding="0" cellspacing="0" style="position:relative; margin-top:10px;"> <tr> <td width="111" align="right" valign="top"> <a href="funcion_subportada.php?galeria_slide=20110408&seccion=146460&id=90043&pag_=1"><img border="0" title="Foto anterior" alt="Foto anterior" src="http://www.yucatan.com.mx/images/bantenota.gif" style="padding-bottom:4px" /></a></td> <td valign="top"><div style=" color:#333; ">&nbsp;&nbsp;<strong>2 </strong> de <strong>22</strong>&nbsp;&nbsp;</div> </td> <td width="111" align="left" valign="top"> <a href="funcion_subportada.php?galeria_slide=20110408&seccion=146460&id=90043&pag_=3"><img title="Foto siguiente" alt="Foto siguiente" border="0" src="http://www.yucatan.com.mx/images/bsignota.gif" /></a> </td> </tr> </table> </div> <style> .principal{clear: both; display: block; height: 0;overflow: hidden;visibility: hidden;width: 0;}</style>