Session Share is a free Chrome add-on developed by Scott Leung that allows users to share their website account cookies with friends without the need to share login passwords. This add-on is particularly useful for sharing video website accounts like IQY and Youku, as well as learning platform accounts like New Oriental Learning and Udacity.

With Session Share, users can easily share their account login status with trusted friends, enabling them to access the shared account without the need for passwords. However, it is important to note that this sharing operation is high-risk and should only be done with trustworthy individuals.

To ensure account security, it is recommended to share accounts under the same IP address to avoid detection by the system. It is also advised not to share sensitive account information like Alipay to prevent any potential information leakage.

If users wish to revoke the shared login status of all shareholders, they can manually log out of the account and re-login.