Chrome Web Storeのガイドライン

Publishing your extension on the Chrome Web Store (CWS) requires adherence to specific guidelines. These rules ensure a safe, high-quality experience for all users.

Understanding them is crucial to avoid rejections and ensure a smooth approval process.

The CWS Guidelines protect users from malicious, deceptive, or low-quality extensions. They also ensure a fair playing field for developers.

Ignoring them can lead to:

• Extension rejection
• Suspension from the store
• Even account termination

This is a critical area. If your extension handles any user data, you must clearly disclose what data you collect, why, and how you use it.

Key requirements:

• Prominent privacy policy link
• Secure handling of sensitive data
• No undisclosed data collection

Your extension must do what it claims. Avoid misleading titles, descriptions, or screenshots that misrepresent its purpose or features.

Users should understand exactly what the extension does before installing it.

Extensions should enhance, not degrade, the user's browsing experience. This means:

• No excessive pop-ups or ads
• No unwanted changes to browser settings
• No interference with other extensions
• Minimal impact on browser performance

Your extension must be stable and functional. It should not crash, freeze, or introduce significant delays.

Ensure your extension is tested thoroughly and works reliably across different devices and Chrome versions.

Respect copyrights, trademarks, and intellectual property. Do not use copyrighted material without permission.

Avoid using Google brand assets (like the Chrome logo) in a way that suggests endorsement or affiliation without explicit approval.

If your extension includes paid features or ads, there are specific rules. All payment methods must be secure and transparent.

Ads should be non-intrusive and clearly distinguishable from content.

After submission, your extension undergoes an automated and manual review. This process checks for policy compliance, security vulnerabilities, and functionality.

Review times can vary, but typically range from a few hours to several days, especially for new or complex extensions.

Many extensions are rejected for similar reasons. The most common include:

• Lack of clear privacy policy
• Misleading description/functionality
• Excessive permissions without justification
• Poor user experience (e.g., intrusive ads)
• Broken or non-functional features

Imagine your extension collects browsing history to offer personalized recommendations. According to CWS guidelines, what is a mandatory step you must take?

We've covered the essential Chrome Web Store Guidelines. Key takeaways include:

• Prioritize user privacy and data transparency.
• Ensure your extension's functionality is clear and honest.
• Provide a high-quality, non-intrusive user experience.
• Respect intellectual property rights.
• Familiarize yourself with common rejection reasons.

Adhering to these guidelines is crucial for a successful launch and maintaining your extension on the store.