To disable it in about:config
browser.search.serpEventTelemetry.enabled = false
browser.search.serpEventTelemetryCategorization.enabled = false
To disable it in about:config
browser.search.serpEventTelemetry.enabled = false
browser.search.serpEventTelemetryCategorization.enabled = false
Never mind the controversy about telemetry in general, which I suppose has its uses even if it’s too often over-used. This telemetry in particular — collecting data about how many times you searched for things involving shopping, travel, real estate — is ridiculous, and cannot be justified by vague platitudes about enhancing the browsing experience.