Make sure new mDNS code is disabled in ESR 52-based Tor Browsers
There is new mDNS code we don't want to have in
/dom/presentation/provider/MulticastDNSDeviceProvider.cpp netwerk/dns/mdns/libmdns/fallback/MulticastDNS.jsm
There is new mDNS code we don't want to have in
/dom/presentation/provider/MulticastDNSDeviceProvider.cpp netwerk/dns/mdns/libmdns/fallback/MulticastDNS.jsm