Back to Top Plus is a free Chrome add-on developed by 超能小紫. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This add-on adds a back to top button and a go to bottom button on every page, allowing users to easily navigate through long web pages.

The developer created this add-on for personal use and as a way to learn extension development. It offers a convenient feature that many users find useful. Additionally, the add-on includes the option to customize the placement of the buttons on the left or right side, as well as an automatic hide feature after a period of inactivity.

The developer has tested the add-on on multiple websites and has not encountered any issues. However, they encourage users to provide feedback in case any problems arise. Overall, Back to Top Plus is a practical and user-friendly browser add-on that enhances the browsing experience by providing easy access to the top and bottom of web pages.