Chrome 151 Ends Final Manifest V2 Ad Blocker Loopholes as Google Cites Security Risks
Updated
Updated · The Verge · Jun 15
Chrome 151 Ends Final Manifest V2 Ad Blocker Loopholes as Google Cites Security Risks
2 articles · Updated · The Verge · Jun 15
Summary
Chrome versions 150 and 151, due in late June and July, will disable the last workarounds that still let older Manifest V2 ad blockers run.
Google said it is stripping out the final Manifest V2 code because the old extension framework adds complexity, technical debt and security risks, including MV2-specific bugs.
From Chrome 151 onward, only Manifest V3-compatible blockers will work, extending Google’s 2024 phaseout that already pushed many users to uBlock Origin Lite or rival browsers.
The move closes Chrome’s remaining path for legacy blockers like uBlock Origin, while leaving other browsers free to keep supporting Manifest V2 if they choose.