What's left to do (with all the latest changes as @MoscaDotTo referred to):
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder]\security_state > All contents
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > cert9.db
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > key4.db
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > ClientAuthRememberList.txt
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > credentialstate.sqlite
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > xulstore.json
Follow up for issue #912
What's left to do (with all the latest changes as @MoscaDotTo referred to):
C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder]\security_state > All contents C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > cert9.db C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > key4.db C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > ClientAuthRememberList.txt C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > credentialstate.sqlite C:\Users[USER]\AppData\Roaming\Mozilla\Firefox\Profiles[profile id folder] > xulstore.json