No it’s not? Unless something changed in the last few months. I’m like 99.99999% sure it’s not.
It is not. I just installed Firefox today on a new machine. It is, however, synced to all my machines when I’ve logged in.
Then I guess I must be getting special treatment from Mozilla then or somehow am downloading a different installer from GetFirefox.com because it’s always been installed for me on a fresh install after a reformat or when putting it on someone else’s computer since I switched back from Chrome after rumors about Manifest V3 started circulating a few years back. 🙄