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Firefox remains the only major browser supporting uBlock Origin as Chromium-based browsers like Microsoft Edge phase it out under Manifest V3, making it the sole choice for full ad-blocking capabilities.
Microsoft Edge is following Chrome by ending support for Manifest V2 extensions, gradually disabling older ad blockers like uBlock Origin starting this month and transitioning consumer users to MV3 by the end of 2026, with enterprise deprecation in early 2027.
This academic paper empirically investigates whether Google's transition from Manifest V2 to V3 in Chrome reduces ad blocker effectiveness, finding no statistically significant degradation and even slight improvements in anti-tracking for MV3 ad blockers.
Google Chrome's transition to Manifest V3 removes the final loopholes for Manifest V2 extensions, effectively ending support for popular ad blockers like uBlock Origin by June 2026.
Google Chrome will remove remaining support for Manifest V2 extensions in versions 150 and 151, effectively ending workarounds that allowed old ad blockers like uBlock Origin to continue working.
Google Chrome is enforcing Manifest V3, which disables workarounds for ad blockers like uBlock Origin, and Microsoft Edge and Opera are expected to implement similar restrictions.
This article provides a technical guide on integrating Transformers.js into a Chrome extension using Manifest V3, detailing architecture for background service workers, model caching, and agent loops.