Personalized Send Button is a free Chrome add-on developed by CogniSend.com. This add-on aims to prevent embarrassing and costly mistakes of sending emails to the wrong person. By displaying the recipient's name and photo on the "Send" button, it helps ensure that emails are sent to the intended recipients every time.

The add-on works by dynamically updating the "Send" button with the name and photo of the recipient as you enter their name in the "To" box. This real-time display serves as a reminder of the intended recipient(s) before you press the send button. For emails with multiple recipients or "Reply all" emails, the add-on also displays the names, photos, and total number of recipients, providing a comprehensive overview of all recipients.

Key features of Personalized Send Button include the display of intended recipient(s) name and photo on the "Send" button, the display of total number of recipients for "Reply" and "Reply all" emails, an intuitive and user-friendly email interface, and a commitment to user data privacy as the extension does not store emails.

Please note that this add-on is currently in beta version, with new features being added frequently. The developer encourages users to provide feedback and report any issues encountered during usage.