In addition to the other problems reported with tabs, I have the following problem: The tabs are displayed in Internet Explorer but not in Firefox. This is true for a Drupal version 5 site (e.g. http://Wendezeit.ch ) as well as for a Drupal version 6 site (e.g. http://upgrade.Wendezeit.ch ). In Firefox, the tabs are only displayed when I am in the admin section of the menu.

Thank you in advance for any hints