CS Nav Links is a free Chrome add-on developed by Don Shine that aims to enhance the navigation menu on the Couchsurfing website. This add-on appends useful links to the dropdown menu, making it easier for users to access important features and information. Additionally, it changes some of the images on the site, replacing the round porthole look with more traditional square images.

One notable feature of CS Nav Links is the option for users to donate to the developer. This is done through a PayPal link provided by Don Shine. However, it is important to note that the add-on itself is completely free to use.

Overall, CS Nav Links provides a convenient way to improve the navigation experience on Couchsurfing, offering additional links and a more visually appealing interface.