Google and Microsoft Pull ModHeader With 1.6 Million Installs After Dormant Collector Found
Google and Microsoft Pull ModHeader With 1.6 Million Installs After Dormant Collector Found
13 July 2026
Google and Microsoft have pulled ModHeader, a popular header-editing extension with roughly 1.6 million installs across Chrome and Edge, after researchers found a hidden browsing-history collector built into its official store version.
The collector was dormant. An empty allow-list kept it switched off, and no proof has emerged that it ever gathered or sent a single browsing domain.
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