Hopefully they work, as it only states fire damage is increased.
Have you looked in the char stats?
Nah, im sure it works, but just pointing out the UI error.
I noticed this as well, and was about to create a post about it. Can confirm though, the UI tooltip doesn’t reflect the multiplier for gems socketed to enhance holy damage, but the stats tab show the increase. Likewise, the holy damage multiplier stat on gear also increases fire damage, whether this is intended or not we wouldn’t know.