I've created a workout in Garmin Connect but I can't send it to my Edge 500 or see any way of exporting the file so I can manually put it on the Edge 500.
The error I get when trying to send is:
The address wasn't understood
Firefox doesn't know how to open this address, because one of the following protocols (connectagent) isn't associated with any program or is not allowed in this context.
You might need to install other software to open this address.
As far as I can tell the garmin software for connecting to devices is no longer supported in firefox.