Thank you for reporting this to Ubuntu. While I do recognize the value in this for enterprises, we currently aren't even using the system NSS in our Firefox builds. I notice the upstream bug is about opening a second read only system NSS DB. This is why I marked this triaged instead of won't fix. We'll follow upstream if they choose to allow this. Please report any other issues you may find.
Thank you for reporting this to Ubuntu. While I do recognize the value in this for enterprises, we currently aren't even using the system NSS in our Firefox builds. I notice the upstream bug is about opening a second read only system NSS DB. This is why I marked this triaged instead of won't fix. We'll follow upstream if they choose to allow this. Please report any other issues you may find.