Google Chrome Disables Manifest V2 Ad Blockers in Version 150, Capping Filters at 30,000
Updated
Updated · ZDNet · Jun 25
Google Chrome Disables Manifest V2 Ad Blockers in Version 150, Capping Filters at 30,000
2 articles · Updated · ZDNet · Jun 25
Summary
Chrome version 150, expected around June 30, will complete Google’s shift to Manifest V3 and disable extensions that still rely on Manifest V2.
Manifest V3 replaces dynamic request blocking with a stricter model and caps filtering rules at 30,000, far below the 80,000 to 300,000 rules advanced blockers often use.
uBlock Origin, AdBlock and tools like NoScript are among the biggest losers, with V3-compatible alternatives such as uBlock Origin Lite and AdGuard retaining fewer advanced features.
Google says the change improves privacy, security and performance, but critics including the EFF argue it weakens real-world protection and user control while doing little to stop malicious extensions.
Firefox still plans to support Manifest V2, Brave says it has workarounds for some extensions, and Microsoft Edge is also phasing out V2 support.
Will Google's crackdown on ad blockers trigger a mass user exodus to rival browsers like Firefox and Brave?
Is Manifest V3 a genuine security upgrade, or a calculated move to protect Google’s multi-billion dollar advertising business?
As Chrome's new security model is exploited by malware, what is the next line of defense for everyday users?
Chrome 150’s Manifest V2 Phase-Out: The End of Powerful Ad Blockers and the Future of Web Privacy (2026)
Overview
With the release of Chrome 150 and 151, Google has completed the final phase-out of Manifest V2 (MV2) extension support, permanently removing workarounds that kept older ad blockers like uBlock Origin functional. From June 2026, only extensions built on the newer Manifest V3 (MV3) framework will work in Chrome, aligning the browser with Google’s stricter extension architecture. This transition marks the end of powerful MV2 ad blockers in Chrome, as the new system restricts their capabilities and enforces a more controlled environment for extensions, significantly impacting users who relied on advanced ad-blocking features.