Chrome Extension Development Setup: The 2026 Starter Guide | ExtensionBooster

Short summary

Comprehensive Manifest V3 setup guide addressing the development environment most tutorials skip. Covers Node.js, package managers (npm/pnpm), VS Code extensions for API autocomplete, Chrome dev profiles, and three debugging surfaces (service worker, popup, content script). Includes ready-to-use configurations and best practices to avoid common pitfalls like stale service workers and environment pollution.

• •Use Node.js and a package manager (npm/pnpm) for any serious extension toolchain with TypeScript and bundling
• •Install @types/chrome and VS Code extensions for proper API autocomplete and debugging
• •Create a dedicated Chrome dev profile to isolate experiments and avoid leaking into personal browsing

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