MailBlock is a free Chrome add-on developed by Ruby.co that aims to protect your privacy by disabling tracking from Gmail. With the increasing prevalence of embedded tracking in emails, MailBlock offers a solution to prevent senders from knowing when and where you open their emails.

According to statistics, approximately 90% of marketing emails and 20% of personal emails contain embedded tracking. This tracking allows the sender to monitor how many times you open their email and even track your location at the time of opening. MailBlock addresses this issue by blocking tracking from almost 100 different vendors.

One of the key features of MailBlock is its comprehensive block list, which is regularly updated every week. This ensures that you are protected from the latest tracking techniques and vendors attempting to monitor your email activity. By using MailBlock, you can regain control over your privacy and prevent unwanted tracking from Gmail.