I have a D-link 4G Router whose IP Address is 192.168.1.1 Its does not support https, only http. I am unable to configure it using Firefox, I have to use Chrome. Firefox prevents me connecting to it because (a) It does not support https and, if I get round this issue (b) Firefox reports that the Router's security certificate is out of date I can never get round (b), there are no options to override Security Certificate is out of date. I can override the same issue if I use Chrome (but I would prefer to use Firefox) It seems a bit over-authoritarian to me, to prevent me from logging into and configuring my own Router !!!! I believe Firefox should always provide a mechanism for the user to override these security issues.