Thankfully it seems that this is only for Dark Reader on Edge (not Firefox or Chrome).

Still worrying to see them integrate this fraudulent service.

The firefox list is pretty much entirely overly specific youtube tweaks (that you should be using uBlock or a more fully featured Youtube extension for), “games in sidebar”, and custom cursors. Bonzi buddy and toolbars, anyone?

Seriously, an NES emulator? As a browser addon? That needs permission to access “your data on all websites”?