matteopey
On another note you should really spend 2-3 days in Naples, a city which I found (unexpectedly) very interesting and fascinating.
Finally you should really make this card [0], it allows you to take every train, metro, bus, funicular railway, from Naples to Sorrento and allows you to enter for free in the first two cultural sites that you visit. So I recommend you to go first in the two Roman cities and save a few money that you can invest in good pizzas :).
[0]: https://www.campaniartecard.it/campania-3-days/?lang=en
It's also available on f-droid [1] and of course open source [2].
[1]: https://f-droid.org/en/packages/org.shadowice.flocke.andotp/
I solved the problem by using an extension that toggle that flag: https://addons.mozilla.org/en-US/firefox/addon/toggle-resist...