The license file indicates that the extension is AGPL (https://github.com/nccgroup/LoggerPlusPlus/blob/785c85e06eb64e3b0982f31c6dcf5ad925f281db/LICENSE). Is that compatible with the closed-source, Burp Suite Professional or Community software though? https://portswigger.net/burp/eula/community https://portswigger.net/burp/eula/pro https://portswigger.net/legal Would the LGPL have been more suitable? https://www.gnu.org/licenses/lgpl-3.0.html