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Mozilla hit with privacy complaint over Firefox user tracking
(www.reuters.com)
A place to discuss the news and latest developments on the open-source browser Firefox
It is opt-in if you have an adblocker.
Also it is anonymised info
Except Mozilla enables the telemetry by default and does not ship an ad blocker.
Also the data is not anonymized until after upload. You must trust Mozilla to do this. And I don't know how much I trust Mozilla after they refused to announce this change to its users.