KillTrack - can be used as a replacement.

The information shows in the tooltip when you hover over the mob.

Also know this. Some mobs have multiple NPCID, so this addon will show only the count for the ID that you have hovered over.

check out this item it is dropped by 8 different versions of the "Primal Proto-Drake"

https://www.wowhead.com/item=202081/dragon-isles-supply-bag

I would prefer to kill the one that has the 3% drop chance as often as I can, and just kill others when I can't find that one. I added the NPC id for the 3% Drake to SilverDragon, so it puts a diamond on that mob, but it only give me a pointer to it the first time. It does help me to check them when I hover over them. Also it switches around targetting any that are close by.

To get the MOB NPCID I used "IDTIP Community Fork" not the regular one. It was not working for me.

is there a working version somewhere out in the web ?

or any alternative ?

Another ugly fix to hopefully keep this one alive.

MobKillCount.lua line 24

Replace

    GameTooltip:HookScript('OnTooltipSetUnit', function(self)
        addon:OnGameTooltipSetUnit(self)
    end)

with

    TooltipDataProcessor.AddTooltipPostCall(Enum.TooltipDataType.Unit, function(tooltip, tooltipData)
        addon:OnGameTooltipSetUnit(tooltip)
    end)

Fix borrowed from 'NPC Time' update

Seems to work so far

In reply to CrookedO_o:

 Thank you so much. Been trying to fix this myself but had no luck finding the correct syntax.

In reply to CrookedO_o:

 For some reason, when edition the lua file with the new code, the counter still doesn't increase when I kill a mob.

It's ugly fix, but if you modify function addon:OnCombatEvent (line 54 of MobKillCount.lua) by adding a line just before if destGuid then like:

local timeStamp, logEvent, hideCaster, sourceGuid, sourceName,sourceFlags, sourceFlags2,
destGuid, destName, destFlags, destFlags2, spellID = CombatLogGetCurrentEventInfo()

It would work. At least worked for me in 8.1 ;)

In reply to Forge_User_59144897:

 Can fix for 9.0.1 ?

The addon is so tiny. I looked through the code and it shouldn't be hard for someone that knows what they're doing to find the problem at hand? I honestly have no idea but I assume something has changed with a value. 

Any news about update? or if this one was abandoned names of similar addons?

Quote from NekromantDE >>

Any news about update? or if this one was abandoned names of similar addons?

In reply to NekromantDE:

In reply to Tntdruid:

Broken in pre patch 8.0

Broken in pre patch 8.0

I like it, very simple. Only thing that would be nice is some command that opens a window that shows all your kills with possibility of filtering.

this addon is broken it doesnt display anything at all

can this track specific boss kills? will this be able to count in previous kills?

Ya know.. some usage commands or something would be nice. would give a good rating if you posted info about it but you did nothing..