ranorex shows the warning message "Please make sure that you have the Ranorex Addon installed and enabled in your Mozilla browser. Otherwise Ranorex' UI element identification capabilities for Mozilla are limited." though this addon was installed in my Mozilla Firefox.
incidentally this message is only shown if Mozilla Thunderbird is running.
this is annoying in the long run.
System:
Windows 7 Professional
Ranorex Studio 3.1