In case you don’t know, Facebook has a feature to add new comment from reply email. The process is same as you are replying an email to the recipient. It is pretty simple and straightforward. Take a look at the screenshot below:

1. Open your email inbox and read the email notification from Facebook regarding someone has comment on your status. You’ll see a text “Reply to this email to comment on this status“. Click “Reply” to this email button to proceed.
2. Make sure the email body content is empty. Now, enter your comment inside the body content. As you are finish, click “Send” button to send this email to Facebook and it will automatically update your comment in Facebook.
3. Done. Login to Facebook and verify your comment is updated.