Why Is My Core Web Vitals Annotations Chrome Extension No Longer Supported?

Learn why your Core Web Vitals Annotations Chrome extension may no longer be supported, what it means for you, and how to find an alternative.

If you got here, you probably have seen the following banner in the Chrome Web Store saying that your Core Web Vitals Annotations extension may soon no longer be supported because it doesn't follow best practices for Chrome extensions.

Why is this happening?

Google is updating their browser extension store to improve security and performance. They're moving from Manifest V2 to Manifest V3, which is like upgrading from an old operating system to a new one for extensions.

"To better protect your privacy and security, Chrome and the Chrome Web Store require extensions to be up-to-date with new requirements. With this, Chrome may disable extensions that don't meet these requirements."
- Chrome Web Store Help

Google started informing extension developers and companies years ago that they should update their extensions to Manifest V3. This deadline is now coming to an end and extensions using the old V2 manifest will be removed.

The Core Web Vitals Annotations extension is still using the older Manifest V2, which is deprecated for years and will soon be phased out. This change affects many popular extensions, not just Core Web Vitals Annotations.

Why Are Some Of My Chrome Extensions No Longer Supported?

Learn about the transition from Manifest V2 to V3 and its impact.

What does this mean for you?

• Your Core Web Vitals Annotations extension may stop working in the near future.
• You might need to find an alternative extension for Core Web Vitals Annotations that has been updated to Manifest V3.
• If the developers update Core Web Vitals Annotations to Manifest V3, you'll need to update your extension when it becomes available.

Where to find alternatives?

Core Web Vitals Annotations has more than 2000 installs and a rating of 5 stars. It was last updated at 24-Feb-21 and is listed in the category Productivity and Developer Tools. We have manually tested and reviewed many extensions in different categories, including the Productivity category.

Check out our full list of detailed reviews and rankings to find the perfect Core Web Vitals Annotations alternative.