BApp details: CSurfer
This extension automatically handles anti-CSRF tokens, and hides the mechanism from the browser (or other tool) that is using Burp. It tracks the most recent token received in a response, and ensures that each request always contains the latest token.
It also allows Burp to be chained as an upstream proxy from other security scanning tools that are not CSRF-aware.
Requires Java version 7.
Read more: https://github.com/asaafan/CSurfer/
You can install BApps directly within Burp, via the BApp Store feature in the Burp Extender tool. You can also download them from here, for offline installation into Burp.
Please note that extensions are written by third party users of Burp, and PortSwigger Web Security makes no warranty about their quality or usefulness for any particular purpose.