Chrome Extension Builder Checklist

Pick the right surface: popup, side panel, options page, content script, or service worker.

Persist state in chrome.storage, not in-memory service worker variables.

Define typed messages before wiring popup, content script, and service worker flows.

Request the narrowest host permissions possible.

Explain every sensitive permission in plain language.

Keep browsing history, notes, and focus data local unless sync is essential.

Write a keyword-rich Chrome Web Store title and 100+ word description.

Prepare all five promotional screenshots with real UI and benefit captions.

Add privacy policy, support route, changelog, and uninstall feedback page.

Publish a landing page before submission so search can start indexing.

Build comparison and what-is pages for high-intent searches.

Ask beta users for reviews during the first week after approval.

Make the first useful action happen inside the first session.

Add export or reset paths so users trust the tool.

Track install, activation, core action, uninstall, and paid conversion events.