End Collaborator's use of Adobe Flash
Collaborator (and all Web-based tools, really) should retire any use of Adobe Flash. The same functionality is now available natively in standards-compliant HTML5 browsers, which are commonplace at this time.
Flash Player is a never-ending source of security issues, causes grief for IT administrators, and is constantly pining for updates. If it weren't for Collaborator, I could remove the flash plugin from my system entirely and enjoy improved security.