A study analyzing the performance of Chrome ad blocker extensions published on Friday has proven wrong claims made by Google developers last month, when a controversy broke out surrounding their decision to modify the Chrome browser in such a way that would have eventually killed off ad blockers and many other extensions.
The study, carried out by the team behind the Ghostery ad blocker, found that ad blockers had sub-millisecond impact on Chrome's network requests that could hardly be called a performance hit.
Following the publication of this study, Google engineers made it official on a Google Groups posting hours later, announcing a relaxation of the Manifest V3 changes that would have impacted ad blockers.
"Another clarification is that the webRequest API is not going to be fully removed as part of Manifest V3," said Chrome engineer Devlin Cronin [emphasis his].
"The extensions ecosystem on Chrome is vibrant and varied, and enables myriad use cases that would otherwise be impossible," Cronin added. "We are committed to preserving that ecosystem and ensuring that users can continue to customize the Chrome browser to meet their needs. This includes continuing to support extensions, including content blockers, developer tools, accessibility features, and many others. It is not, nor has it ever been, our goal to prevent or break content blocking."