Stopped working on my firefox, why??? help please

NOT WORKING, ALL OF A SUDDEN

It does not work on Firefox !!!

Szuper! Nem jön be a face új felülete, viszont a régit szeretem. :)

It's hit and miss for me on Firefox 81.0.2 64 bit. Sometimes it works, most times it doesn't and I can't figure out why. It's just easier for me to use an agent switcher to trick FB into thinking I'm using Internet Explorer, but that's getting bothersome.

Perhaps it's an issue with one of my other add-ons. I'll check it out and change review if that's the case.

PLEASE FIX MY OLD LAYOUT FOR FACEBOOK NOW THEN THIS NEW FACEBOOK

I put one star to get your attention, it is no longer working on Firefox for Mac. When I enable it it says browser is not supported and puts everything in the old mobile layout. When I turn it off it widens it, but when I restart it goes back to the new crappy layout. Before it was great!!!

so good, thx u :D

This is absolutely essential. FB did something today that broke it, and it makes FB absolutely unusable. This extension and Kruse's Social Fixer are the only things that make Facebook tolerable, and it makes no sense that FB would want to make things more difficult/annoying for users.