Wait a second, can someone with more knowledge explain how Google Analytics is related to everything else? I don't understand the following sentence from the article:
> This data will allow us to correlate telemetry IDs with download tokens and Google Analytics IDs.
IIRXC, Firefox has (had?) Google Analytics in new tab page and settings page. I don't think it's the same as standard web tracking script, but rather API calls with specific events.
It is likely that they correlate the dltoken, Google Analytics tracking ID, and Telemetry IDs.
The Google Analytics usage in Firefox is very difficult to Google, and I wholeheartedly wish my memory is wrong about this, because it's a very worrying thing otherwise.
> This data will allow us to correlate telemetry IDs with download tokens and Google Analytics IDs.