Hey Nick. The legacy InfoBurst user interface is Flash-based. Browser developers (Google, Microsoft, etc) will remove Flash from their browsers at the end of the year when Adobe drops support for Flash. InfoBurst Build 240 introduces a new HTML5 user interface that replaces the Flash version.
InfoBurst Platform Build 240 - Release Notes
https://help.infosol.com/support/discussions/topics/19000028761
Does this answer your question?
Bryan, is IB going to be flash free by the end of the year?
Bryan Baca
InfoBurst Platform Build 240 FP1 is now available and includes fixes and enhancements for Build 240.
InfoBurst Platform Build 240 FP1 - Release Notes