Pixiv Bookmark with Star is a useful Chrome extension developed by 無限猿. It allows users to simultaneously rate bookmarks with a 10-point scale while adding them on the popular art community website, Pixiv.

Once the "Add to Bookmark" button is clicked, there is a slight delay before the rating feature becomes available. However, it is worth noting that occasional failures may occur.

This extension provides a convenient way for Pixiv users to quickly rate their bookmarks without the need for additional steps. It streamlines the bookmarking process and enhances the overall user experience.

Please note that the developer has made updates to address any issues with the extension's functionality. The most recent update was on May 4, 2013, with version 1.4. Users who encounter any problems are advised to update or disable the extension accordingly.