Mozilla’s websites are full of trackers too, and they are largely funded by Google. How can you protect privacy when your biggest customer gains money by tracking? Seems like a clear conflict of interest.
And it’s not a bit of telemetry data, it’s literally your entire computer config, number of tabs open, duration… they claim not to log IPs, but can you really trust them? The point is you’re constantly pinging with your IP to their servers for useless reasons. They literally sell your data by sharing it to their “business partners”.
They also send the url of all files you download to Google by default. Great. That’s privacy!