Pull to Refresh by Andrei Petcu

You pull and it refreshes on Android. It basically injects code from this library in all the pages <a rel="nofollow" href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/ffeaf2eb90744385be7923c018a3da9aa590c28c92a29d20073065b5c28b7dd6/https%3A//www.boxfactura.com/pulltorefresh.js/">https://www.boxfactura.com/pulltorefresh.js/</a>. The icon is Refresh by gb on noun project.