Due to unreasonable demands from the Debian QA Team (namely to stop
auto-configuring other packages), post-install scripts are disabled.

You can run them manually on each upgrade with:

  /usr/share/fusionforge/bin/post-install.sh
 
Alternatively see the Debian packages from the official project:

  https://fusionforge.org/plugins/mediawiki/wiki/fusionforge/index.php/DEB_Installation