Firefox Focus – privacy focussed mobile browser

It's somewhat disturbing to see "Automatically block online tracking while you browse" the very same moment the app starts to silently send tracking data to app.adjust.com and incoming.telemetry.mozilla.org.

Yes, Mozilla needs that data to improve Firefox Focus. Yes, they probably don't send anything sensitive. Yes, it's not browsing activity, just an install ping (probably). Yes, the app's open source so I can take a look. But still...