Chrome Extension -- 2

Job ID: 31718863

Budget: $250 – $750 USD

Hi, I have a Chrome extension.
But I want to change that. I want to generate serial / key codes and make the extension work only if the key is validated by my system.

The customer will sign the product. He will then receive the extension download link and an activation key.
If he doesn't pay the following month, his key will be canceled and he will no longer be able to use the extension.

The activation key generator system is ready, I just need to insert in my chrome extension a serial code validation system / activation keys provided by my system.

Apply only if you can and think you can do the job.