Extension.devPlatform documentation

Build, preview, release and publish browser extensions for Chrome, Firefox, Edge and Safari from one project.

Four ways to start

From a template, from a repository you already have, from a description, or from the theme builder.

Ways to start

Connect a repository once. Every push builds one artifact per browser from the same commit.

Projects

Promote a tested build through the channels you define before any store review sees it.

Release channels

Hand a reviewer a link that runs your build in their browser. They install nothing and sign in to nothing.

Share a build for review

Credentials live in the project, not in the command. Submissions dispatch from the console, from CI, or from an agent.

Publishing

Push to build, arm a release to promote itself when the build goes green, and let the store sweep report back.

CI and git deploys

An MCP server for the verbs and an agent skill for the judgment, from create to store submission.

MCP server

Free runs everything by hand, every browser and every store. Paid is unattended operation, stated in one table.

Plans and limits