The 2nd issue is huge, as are the 3rd and 4th issues: 3. that a part of the browser chrome (which is technically iframing a website, but should still meet user

The 2nd issue is huge, as are the 3rd and 4th issues: 3. that a part of the browser chrome (which is technically iframing a website, but should still meet user expectation of being a part of the browser) is tracking users who have explicitly opted out of browser telemetry. 4. that in-browser telemetry includes sending user data to 3rd-parties without that being explicitly consented to. Tbh, AMO using GA is something I don't really find acceptable, and would much rather was phased out, but having been aware of it for so long, it'll hardly drive me away. Most importantly, I can block it with an addon (unlike this issue). Really though, the crux of the issue here from a PR perspective is not any individual technical failing, but the really disappointingly dismissive attitude of the Mozilla devs replying to comments on Github and here. If an employee of Mozilla can't see the significance of this, I worry about Mozilla's adherence to it's own stated mission.