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Microsoft Edge is about to lock out older ad blockers, just like Chrome did

Microsoft Edge is discontinuing support for Manifest V2 extensions (including popular ad blockers like uBlock Origin), following Chrome's earlier transition to the newer MV3 platform, with consumer phase-out completing by end of 2026 and enterprise shutdown in early 2027. This industry-wide shift toward MV3 significantly restricts ad-blocking capabilities across major browsers and consolidates vendor control over extension ecosystems, creating potential security and compliance implications for enterprise environments. IT organizations must evaluate the impact on employee productivity, corporate security postures, and data privacy policies as ad-blocking functionality diminishes across standardized browser deployments.