Chrome Extension Review Preparation — Developer Guide

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Extension Review Preparation

This guide covers everything you need to prepare your Chrome extension for a successful Chrome Web Store (CWS) review. Following these guidelines will help avoid common rejection reasons and ensure a smooth submission process.

Pre-Submission Checklist

Before submitting your extension, verify each of the following:

Common Rejection Reasons and How to Avoid Them

Understanding frequent rejection reasons helps you prevent them:

1. Permission Overreach {#1-permission-overreach}

Problem: Requesting more permissions than necessary for your extension’s functionality.

Solution: Only request permissions your extension actually needs. Use optional permissions where possible and implement permission downgrades in Manifest V3.

2. Single Purpose Violation {#2-single-purpose-violation}

Problem: Extension tries to do too many unrelated things.

Solution: Ensure your extension has one clear purpose. If you need multiple features, consider creating separate extensions or clearly document how features relate to the core purpose.

3. Obfuscated Code {#3-obfuscated-code}

Problem: Using minified, obfuscated, or packed code that reviewers cannot inspect.

Solution: Always submit source code that can be reviewed. If you must use build tools that minify code, ensure source maps are available or keep a non-minified version for submission.

4. Misleading Descriptions {#4-misleading-descriptions}

Problem: Description doesn’t match actual functionality.

Solution: Your description must accurately reflect what the extension does. Update it if functionality changes.

5. Privacy Policy Issues {#5-privacy-policy-issues}

Problem: Missing, inadequate, or inaccessible privacy policy.

Solution: Host a comprehensive privacy policy at a stable URL. See Privacy Policy Template for requirements.

Permission Justification

Every permission must be justified in the CWS developer dashboard. Document why each permission is needed:

Permission Common Justification
tabs Accessing tab information for productivity features
activeTab Interacting with current page when user invokes extension
storage Storing user preferences and settings locally
cookies Managing session cookies for authentication features
webRequest Modifying network requests for filtering/blocking
scripting Injecting content scripts for page manipulation
contextMenus Adding right-click menu options

Always prefer activeTab over tabs permission when possible—it only grants access when the user explicitly invokes your extension.

Privacy Policy Requirements

A compliant privacy policy must include:

  1. Data Collection Disclosure: What data you collect and why
  2. Data Storage: How and where data is stored
  3. Third-Party Sharing: Whether data is shared with third parties
  4. User Rights: How users can access or delete their data
  5. Contact Information: How users can contact you with privacy concerns

See Privacy Policy Template for a complete template.

Single Purpose Policy Compliance

Chrome Web Store requires extensions to have a single, clearly defined purpose:

No Obfuscated Code Rule

CWS reviewers must be able to inspect your code:

Content Security Policy Requirements

Define a proper CSP in your manifest.json:

{
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}

Guidelines:

Screenshots and Store Listing Requirements

Your store listing must include:

See Screenshot Guidelines and Listing Optimization for best practices.

Review Timeline Expectations

CWS review times vary:

Factors affecting timeline:

Handling Rejections

If your extension is rejected:

Step 1: Understand the Reason

Step 2: Fix the Issues

Step 3: Appeal or Resubmit

Common Fixes for Rejections

Issue Fix
Permission too broad Switch to optional permissions or activeTab
No privacy policy Add hosted privacy policy URL
Obfuscated code Submit unminified source code
Single purpose violation Remove unrelated features or split extension
Misleading description Update description to match functionality

Turn Your Extension Into a Business

Ready to monetize? The Extension Monetization Playbook covers freemium models, Stripe integration, subscription architecture, and growth strategies for Chrome extension developers.

Part of the Chrome Extension Guide by theluckystrike. Built at zovo.one.

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