As far as I understand it, both of the above. AMP apparently doesn't work on Firefox and AMP-pages are only linked to by Google. Obviously, some people might c

As far as I understand it, both of the above. AMP apparently doesn't work on Firefox and AMP-pages are only linked to by Google. Obviously, some people might copy the AMP-link themselves and post it somewhere, but if you're not much on social media, it's entirely possible that you just haven't seen that yet.