There is a way to enable arbitrary add-ons to work on Firefox for Android, but you have to do a few extra steps: register a Firefox account, create a collection of extensions, then add that collection to your phone. I can tell you that Conset-o-Matic definitely works if you take this route.
And on top of this, the removals were done following the request from a troll account, by a user involved in far more questionable discussions than the legal discussions currently going on in the now-removed communities. Should no attempt be made to differentiate between a legit legal concern and trolling?
Yep, idioiotsincars is one that I miss, too!
The Edge 20 series isn’t on the list and it’s only about 2 years old…