WXT Framework Patterns

Comprehensive guide for building cross-browser extensions with WXT, including security hardening, Firefox/Safari specifics, and production patterns.

Overview

WXT is the leading framework for browser extension development, offering:

• Cross-browser support: Chrome, Firefox, Edge, Safari
• Manifest agnostic: MV2 and MV3 from single codebase
• File-based entrypoints: Auto-generated manifest
• Vite-powered: Fast HMR for all script types
• Framework agnostic: React, Vue, Svelte, Solid, vanilla

This skill covers: