Hi, I meet some issues with the Firefox certificates management. Here is my context: - Firefox v32.0.2 on Windows 7 32 bits - a self-signed certificate created with OpenSSL 32 bits - Firefox and self-signed certificate have been deployed on 11000 workstations with some automated process (scripts). The self-signed certificate is used to securize data flows with https protocol between two WebServices and different applications. There is no security problem with Internet Explorer, Safari, Chrome. I have already deployed and installed the self-signed certificate with an Microsoft Active Directory GPO (there is an addon GPO for FireFox) and it is OK Issue: When the application WebService calls Firefox, a message indicates to the users that the connection can't be certified and ask them to add an exception. the WS URL is appeared and the users must click on "Confirm security exception" (the checkbox "Conserv this exception permanently" must be checked) It is a bit "dangerous" to let the users with these different choices and this is not very friendly. So, I want to create a script which automates all these manipulations and deploy this script with a GPO. Is it possible ? How can I script this certificate exception and the different choices? Thanks a lot by advance for your help Best regards Yanolezard