I have many customers who use Checkpoint UTM, and part of that is URL and application filtering, this include HTTPS inspection. Now with Https inspection it requires users to install a ROOT certificate from checkpoint onto their machines, this stops IE, CHROME, SAFARI from getting certificate warnings when browsing https sites. However Firefox stil gives certificate warnings for HTTPS sites and asked to add security exemptions, it can't read the root certificate, how do I manually import the certificate? or is there a way to stop the warnings?