[esperent]

Your first link is about Firefox studies.

I had never heard of these before, but when I go to about:studies, I see that I have never participated in any studies, and when I click the link from that page to "Firefox data collection and use" setting, I see that I am opted out from everything. Pretty sure I didn't do that manually.

Your second link is to a page called "Firefox health report". I have no idea what conclusions I'm supposed to draw from that.

Can you provide more info about the privacy violations you're referring to?

[resfirestar]

> when I click the link from that page to "Firefox data collection and use" setting, I see that I am opted out from everything. Pretty sure I didn't do that manually.

Are you on Linux? Many distributions include their own tweaks to the Firefox package, including disabling data collection.

[afiori]

> but when I go to about:studies, I see that I have never participated in any studies

Are you in the US? I also have not participated in any studies but in the preferences it is marked as active. My guess would be that they either run very few of them or are restricted to the US.

[kop316]

I am in the US. It was disabled by default in Debian, but it is on in Windows. It looks like I have not participate din any studies on the Windows machine.

[esperent]

No, Vietnam.