I really don't like the comments here. Why do people assume that the Mozilla foundation is a clueless scammer? Before questioning their methods and motives, how about reading what the site says:

"Welcome to Mozilla’s Privacy Not Included buyer’s guide. Our goal is to help you shop smart—and safe—for products that connect to the internet.

In 2017, when we first started Privacy Not Included, we didn’t know if people would be interested in a guide about the privacy and security of connected toys, gadgets, and smart home products. Turns out, they were. [--]" https://foundation.mozilla.org/en/privacynotincluded/about/w...