Hi

The product that you refer to is one of our premium products. In order to get premium support from a dedicated agent, please select the product below to submit your question:

• Mozilla VPN
• Firefox Relay
• MDN Plus

I purchased this product by mistake not knowing how it works,it's not for me,I want to cancel this

Hi

Please refer to my previous answer. Mozilla makes available several premium products - the support team for the one that you have will be able to assist you in canceling your subscription.

I purchased this product by mistake not knowing how it works,it's not for me,I want to cancel this

You posted this thread in the Firefox for Android section, The Firefox web browsers for Windows, macOS, Linux and mobile versions for Android and iOS are 100% free to download and use as there has never been a subscription option for them.

So you are likely referring to Mozilla VPN or Firefox Relay or MDN Plus as Paul linked to the places you can ask for support.