UPDATE: the chrome://plugins area has been deprecated. Use this link now: https://helpx.adobe.com/flash-player/kb/enabling-flash-player-chrome.html
I was having more and more trouble as time went on with some features in echo360’s editing area. It sends an error complaining about flash not being new enough… but I knew I had the newest one installed… very frustrating. I know that Apple and Adobe don’t always get along – especially when it comes to Flash, so I just went with it for a bit. But hey – turns out that there is an actual solution, and it isn’t in the apple preferences, it’s in the browser preferences.
The other fun bit, is you can’t just pull down a normal settings menu and expect to find this… you have to type into the URL field: chrome://plugins to get to these preferences.