Ever since I've upgraded to Yosemite I'm getting "Plugin Failure" where QT media should be playing in Safari. I've identified a work-around, but it doesn't appear to be a consistent solution. When I go to Preferences in Safari I click on Security. I have the Allow checkbox checked for Internet plug-ins. When I click on Website Settings... a new screen pops up. On the left I click on Quicktime and the two sites I can't get QT files to play shows up on the right. At first I had "Allow Always" selected but would still get the plugin failure. So I selected "Run in Safe Mode" and can usually get the media to play properly. The problem is that setting doesn't always seem to hold. And why is it only these two sites require this?