CHROME MANIFEST V3 API QUICK REFERENCE

Build Chrome Extensions Faster with Manifest V3 — Without Digging Through Docs

If you’re developing Chrome extensions with Manifest V3, you already know the pain: scattered documentation, subtle API changes, and endless tab-switching just to confirm a single field or permission.

Chrome Manifest V3 API Quick Reference is a concise, developer-focused cheat sheet that puts all essential MV3 APIs, syntax, and usage notes in one place — designed for rapid lookup, offline reading, and real-world development.


What This Book Covers
manifest.json core fields — clearly explained with practical examples

Permissions & host permissions — scopes, pitfalls, and best practices

Service workers & background logic — lifecycle, events, and limitations

chrome.runtime & messaging — extension communication patterns

Declarative Net Request (DNR) — rulesets, actions, and migration notes

Content scripts & injection logic

Extension UI — actions, popups, options pages

Storage APIs — local vs sync usage guidance

Packaging & publishing tips for Chrome Web Store

Who This Book Is For
Developers migrating from Manifest V2 to V3

Chrome extension authors who want a single, reliable reference

Solo builders tired of jumping between docs, blog posts, and samples

Engineers who prefer clarity over tutorials

This is not a step-by-step beginner course.

It’s a working reference you keep open while coding.

Why This Guide Is Different
📌 Structured by API, not theory

⚡ Fast to scan, easy to bookmark

💻 Offline-friendly — no docs rabbit holes

🧠 Focused on what you actually need while building

Stop context-switching.

Ship your extension faster.