Actually, this is not a Firefox issue. That's the standard Session Restore message. That should happen on Shutdown so that your tabs are restored. It should not happen on Hibernation though. I would check into why your hibernation is not working properly.
Actually, this is not a Firefox issue. That's the standard Session Restore message. That should happen on Shutdown so that your tabs are restored. It should not happen on Hibernation though. I would check into why your hibernation is not working properly.