Topic summary
WebExtensions
Extracted from the Wikipedia article Browser extension.
API conformity
In 2021, these browser vendors formed a new W3C community group, called WebExtensions, to "specify a model, permissions, and a common core of APIs". However, Google joined this during its overhaul of Chrome's extension API, known as Manifest V3, which greatly reduces the capability of ad blockers and privacy-related extensions. Thus the WebExtensions group is viewed by some extension developers as nothing more than Google imposing its Manifest V3 design.