T Writer extension button in the Gmail reply box. 3) Briefly enter what you want to reply to and hit "Generate Reply" button. How to generate a new email in Gmail: 1) Go to Gmail, compose new email. 2) Click the ChatGPT Writer extension button in the Gmail textbox. 3) Briefly enter what you want to write an email about and hit "Generate Email" button. How to make it work on Brave browser: If you are using Brave browser, follow these steps to make it work. - Go to brave://settings/shields - Disable "Prevent sites from fingerprinting me based on my language preferences"