Productivity, Developer Tools

Why Is My CP Calendar Chrome Extension No Longer Supported?

Learn why your CP Calendar 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 CP Calendar extension may soon no longer be supported because it doesn't follow best practices for Chrome extensions.

Screenshot from CP Calendar Chrome Web Store entry saying 'This 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 CP Calendar 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 CP Calendar.

What does this mean for you?

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

Where to find alternatives?

CP Calendar has more than 4000 installs and a rating of 4.6 stars. It was last updated at 3-Jul-24 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 CP Calendar alternative.

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