Chatbook is a Chrome add-on developed by palle.torsson. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. This free program aims to enhance the user experience on Facebook by removing the main content of the website, allowing users to focus solely on the chat feature.

With Chatbook, users can eliminate distractions caused by the main feed and sidebar on Facebook. This feature is particularly useful for individuals who want to use the chat function without being overwhelmed by the extensive content displayed on the platform. By removing the main content, Chatbook provides a clean and clutter-free interface, allowing users to concentrate on their conversations.

By utilizing Chatbook, users can stay connected with their friends and contacts on Facebook while minimizing distractions. This Chrome add-on provides a simple and effective solution for those who prefer a more streamlined Facebook experience.

Please note that I am unable to provide any further information about the developer or suggest contacting them.