Simple Proxy for Puppeteer is a Chrome extension developed by andrei0x309. This free extension allows users to set a proxy for their browser and can be used in conjunction with Puppeteer, a tool for controlling web browsers programmatically. However, it can also be used as a standalone proxy extension as long as a working proxy server is available.

The extension is designed to provide seamless proxy control for chromium-based web browsers. It comes with permissions for "proxy" and "storage," which are necessary for its functionality. The extension does not collect any data from the user's device and all necessary files are packed within the extension itself.