Google Chrome touchscreen - right-click gets stuck

There are at least one possible solution that worked for me. :)

That problem could be solved for me with Chrome's --touch-devices command line parameter.

Determine X's input device id in a console by

xinput list

leading to

google-chrome --touch-devices=10

on my system.

To make Chrome always use this CLI flag, see:

How to set CLI flags for Google Chrome?

Chrome + Touchscreen + Unity (14.04)