The issue I am facing:
I have finally got the DNS working where I can ping local devices by their name.
This thread
Now I can ping arlec1.
ping arlec1
PING arlec1 (192.168.0.23) 56(84) bytes of data.
64 bytes from arlec1.Mary (192.168.0.23): icmp_seq=1 ttl=255 time=121 ms
64 bytes from arlec1.Mary (192.168.0.23): icmp_seq=2 ttl=255 time=1.53 ms
64 bytes from arlec1.Mary (192.168.0.23): icmp_seq=3 ttl=255 time=2.03 ms
^C
--- arlec1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 1.534/41.409/120.669/56.045 ms
Correct IP address.
My LAN is called MARY - don't ask. 
So the question is:
Why can't I type `arlec1 into my browser and it loads the page?
(I've also tried arlec1.Mary and arlec1.mary and arlec1.local. NONE of them work.)
If I enter the IP address the page loads.
Entering the name: Mr Google is called and that isn't what I want.
Given: I can ping it and I see the correct IP address.
(On a side note:)
I have blocked/banned facebook.
I type it in my browser and it doesn't load.
Yet, I can ping it.
What is going on there?
Details about my system:
RasPi 2B
PiHole 5.13
FTL 5.18.2
GUI 5.16
What I have changed since installing Pi-hole:
¯_(ツ)_/¯
