You can cancel your paid subscription at any time. Canceling your MDN Plus subscription will turn off auto-renew, and you will no longer have access to MDN Plus features when your subscription period ends.
MDN Plus allows you to auto-renew, so you don’t have to worry about your subscription. Learn the steps to update your payment method in this article.
Follow the steps in this article to view your MDN Plus subscription information.
Learn how to request a refund for MDN Plus in this article.
You can change your paid MDN Plus subscription plan through your Firefox Accounts subscriptions page. This article describes the steps to do it.