I see now, yes I installed v63.0. Perhaps the 18.5 is the installer application version? My mistake as it is a while since I have used Firefox. This is what I saw as I installed it.
Good you have it working now.
I have just looked again on Firefox with Metro (not Metro Fluid) and it shows search very top left. I am checking on a Surface Pro. A little strange why it does not show on your device. Anyway, good to hear you have it working.
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