Can't open param list

APM - Full Param List - Open From File

Does not see any files including param and txt

I am on Ubuntu 14.04, 64 bit,
APM 2.0.15

@Cossack,
Are you connected to the APM/Pixhawk either over the USB or telemetry link when attempting to view the Full Parameter List?
Regards,
TCIII GM

Yes. I was connected.

BTW I was able to run APM Planner on Mac (DMG was not signed) and I am able to open params files on Mac.
It is some bug with Open File Dialog. It does not recognize open file pattern.