To you, who may be a normal internet user, it makes it seem like they endorse the product. I didn't see that at all. (Plus, a "normal internet user" has no idea how Mozilla makes money.)
This site is a hot garbage of "yes but no but yes actually no"...
This webcam[0] with a doggy treat dispenser attached to it gets the wreath, but when you scroll further down they tell you what's bad with it. On 2nd reading the wreath means "It meets our minimum security standard!". Woah, that's like giving a crown to someone finishing a 5K run 4 hours behind the leader, because "Reaching the finish means you're special!".
And it's enough for the manufacturer to promise shit in writing ("Yeah we have a privacy policy, and we have a button that says 'Delete my data'.") to "meet their minimum security standards".
It smells to me like the foundation is using their reputation for a money/favors grab ("That's a nice product you got, it would be bad if it didn't get our wreath.") -- maybe that's not their motivation, but that's what I'm smelling. The whole thing stinks it makes me wonder if I should uninstall Firefox...
Other way around Mozilla is endorsing google home as 5/5 "Overall Security Rating". Users going to this site have rated google home as creepy. Mozilla is not the one saying it's creepy they are giving it the 5/5.
The 'meets our minimum security standards' seal is still next to the product.