This is really well thought out and works without slowing the page down which is something New Facebook haven't been able to do at all. I had to switch back to classic Facebook and use this instead - easily a 5/5.

"Colored Icons" setting doesn't always work. (I sometimes have to turn it off and back on again to get it to work.)
And most of the "conversation colors" in messenger don't work with this theme enabled.

this one is good. clean and black unlike the other dark theme I've tried. messenger looks good too

I tried a lot of facebook themes and all of them were terrible! But this extension i so beutiful. Thanks!

Perfect for those looking for Facebook Dark Mode on Firefox. Tried the most popular ones but their Messenger Chatbox looks like a buggy mess, but not with this one. This one got it right.

Keep up the good work @pierOandMu

Nice