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Neither. They used a plugin to anonymously track people who opted-in to the experiment. https://addons.mozilla.org/en-US/firefox/pioneer https://addons.mozilla
by Aeronwen 6y ago
Neither. They used a plugin to anonymously track people who opted-in to the experiment.
https://addons.mozilla.org/en-US/firefox/pioneer https://addons.mozilla.org/en-US/firefox/pioneer