browser-extension - Build Modern Browser Extensions
Build 2025/2026 browser extensions with Manifest v3, Service Worker persistence, and Cross-Browser compatibility
Tags
Updated: 2026-03-11Capabilities
Typical Inputs
Typical Outputs
What this skill does
- create manifest file
- configure side panel
- use chrome storage
- use IndexedDB
- set alarms
- create offscreen document
- write service worker
- write content script
- sanitize data
- use declarative net request
- use web request API
- read file
- write file
- edit file
- glob files
- grep files
- run bash commands
- run playwright tests
Inputs
- Extension source code
- Extension assets
- Test files
Outputs
- Manifest v3 file
- Browser extension package
- Stored data
- Declarative net request rules
Requirements
- Manifest v3 support
- Service Worker environment
- Chrome extension APIs
- Node.js runtime
- Playwright test framework