Why does Firefox not always work with iTunes U?
(tip provided by Apple Engineering, view forum post) Firefox needs to be properly configured to open URLs that are supposed to be handled by iTunes (prefix for these URLs is itms:// or itmss:// ). Firefox has security checks which may prevent it from launching a helper application such as iTunes. The first time Firefox attempts to open one of these URLs, it will prompt the user with a panel asking if they are sure they want to use this helper application. If the user chooses not to use the helper application, then they will not have the abiility to transition from Firefox into iTunes U or the iTunes Music Store. Secondarily, Firefox for the Mac does not render this panel correctly if the URL is too long and the user may not be able to enter iTunes U. We recommend that you tell your users to allow iTunes to be a helper application for Firefox.
