It does what it says it does, even on LibreWolf. I don't see a lot of text on the 1-star ratings, so I assume you can ignore them, as they are likely from the "this is woke therefore it is bad because I'm a scumbag" crowd. In fact, if you find it's broken or is giving you trouble, I recommend putting in a 2-star rating on this one, or else nobody will ever see it.

works perfectly :)

pronouns in rhyme city

This addon exists within FFZ and just works! It just needs to be enabled in the addon tab.

If you you the browser addon separately from FFZ it doesn't work.

awesome extension

Excellent app that lets you see pronouns in Twitch chat! IF YOU ARE HAVING TROUBLE WITH THE APP WORKING, UNINSTALL FRANKERFACE! IT INTERFERES DIRECTLY WITH THIS ADDON! Only just figured that out myself now and I'm big mad about it lol.