I have done the following procedure and succesfully removed all protection in Firefox v23. This will help you to view syllabi and media content in OWL Space.
https://support.mozilla.org/en-US/questions/967760
To permanently disable:
1. In the address bar, type “about:config” and press Enter.
2. Click the “I’ll be careful, I promise!” button.
3. In the search field, type “block_active”.
4. Set the value for the one search result (“security.mixed_content.block_active_content”) to “false”.
After above procedure, I restarted Firefox and all is well.
REMEMBER – you are removing all protection from Firfox. Be aware and please practice safe surfing.