"Mobile USB" option fails when using adb over tcp

[maks]

when trying to profile a device which doesn't have a non-host usb port (eg. android x86, pc like devices) you need to run adb over tcp instead.
This works fine for adb, but choosing the USB Mobile option in the add on causes this error to be displaye:
"You must have exactly one instance of Fennec running"

which seems to be because this code:
https://github.com/bgirard/Gecko-Profiler-Addon/blob/master/lib/remoteHost.js#L56-L64
is not parsing the output of adb devices correctly because when connected over tcp adb devices output is:

$ adb devices 
List of devices attached 
192.168.1.17:5555   device

Trying to use the "TCP" option connects fine but doesn't seem to know about pulling all the native libs of the device to enable breakpad profiling.