A set of core libraries and tools for building web extensions. These libraries are built on top of webextension-polyfill and support all browsers.

• @webext-core/messaging: Light weight, type-safe wrapper around the web extension messaging APIs
• @webext-core/storage: Local storage based, type-safe wrappers around the storage API
• @webext-core/job-scheduler: Schedule reoccuring jobs using the Alarms API
• @webext-core/fake-browser: An in-memory implementation of webextension-polyfill for testing
• @webext-core/proxy-service: Write services that can be called from any JS context, but run in the background service worker
• @webext-core/isolated-element: Isolate content script UIs from the page's styles

To get started, checkout the documentation website.