Here comes the Google Chrome change that worries ad blocker creators Google says it's addressed concerns some Chrome extension developers had with its Manifest v3 technology. Listen - 04:08 Manifest v3 will arrive with Chrome 88 in mid-January, Stephen Shankland/CNET With the next version of Chrome, Google is moving ahead with a plan to improve privacy and security by reining in some abilities of extensions used to customize the browser. The move had angered some developers who expected earlier it would cripple ad blockers. Manifest v3, the programming interface behind Google's security plans, will arrive with Chrome 88 in mid-January, Google said Wednesday at the Chrome Dev Summit. Extensions using the earlier Manifest v2 will still work for at least a year.