Open Source Document Management System | OpenKM

I've OpenKM 6.3 + CMIS + http + LibreOffice 4.3.3.2 working properly but when I change to the https protocol LibreOffice returns an error message like "The device specified is not valid".
On LibreOffice I have activated
- LibreOffice "Open/Save" dialog box
- the experimental features
- firefox certificate's path

Any help is welcome.

Regards

Have you tried this problem in LibreOffice forum?