Chrome has flash built in....but you have to enable it, and now, you have to specify to use flash on a domain by domain basis unless there is some prompt the web page has that tells you to enable flash (which ours does not...).
Until we update our floor plan tools, this is what you can tell people to do. Tammy, I am sending in to FD as a knowledge base item.
Enable Flash at chrome://settings/content/
Add specific sites to allow flash automatically here