Hi.. I found the problem.

In the file administrator/components/com_sef/views/config/tmpl/default.php

At line number 216 is an error in the closure of that part of the html commented. Instead of "-->" there "-- >" and all browsers except Firefox interpret it wrong.

I hope to be helpful.

Luca

Hello,

thanks for this info. It might be the reason, we will fix this.