Appreciate your reading my post as it was quite a long one. Yes, it’s fun to figure out what makes the Facebooks of this world tick. Glad you found Firefox extension useful. Wish there were more not-for-profits around as that’s one way to tell the good guys from the baddies.
Have you tried the Firefox Focus app? It’s what I use if I have to access FB on my mobile devices. It does not work exactly the same as the extension, but it’s better than nothing and that everpresent ‘erase’ button (on the app’s top right) is really cool.
Sadly, I got busy and wasn’t able to get the fake FB network going. But I’ll eventually get down to it as the idea is too nutty to drop.