У вашего броузера проблема в совместимости с HTML5
In the previous video, we installed Security Onion using the standard Ubuntu installer and then rebooted into our new Security Onion installation. In this video, we'll run through phase 1 of the Security Onion Setup wizard that allows us to configure our management interface and optimize our sniffing interfaces. If you have questions or problems, please use our mailing list:
https://github.com/Security-Onion-Solutions/security-onion/wiki/MailingLists