About holmegan

Thank you for posting question @holmegan   If you would like to address an issue with different version of browsers and you are managing those clients, then there might be more elegant solution. For example to use an end point management to address this issue.   If you are going to leverage Firewall for this task, then closest match I can think of for your requirement is to create a Custom Application or Vulnerability Signature, then match version in HTTP header, then link it to a policy to block it.   Below are examples by using Custom Application as well as Vulnerability Signature:   https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClEdCAK https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClSOCA0   Note: In either case, you will have to enable decryption to get visibility into HTTPS traffic.   Kind Regards Pavel   ... View more