The open standard for browser extensions
The W3C groups developing a common, interoperable model and API for browser extensions across all major browsers.
Draft Specification →W3C Groups
Community Group
WECG
Community proposals and discussion. An open forum where browser vendors, extension developers, and the wider community collaborate on proposals for new WebExtensions APIs.
Working Group
WEWG
Formal specification work. Develops the official W3C specification for browser extensions, informed by WECG proposals and working toward a ratified open standard.