in chrome on ubuntu, I selected automatically opening the downloaded pdf on system default pdf viewer. Now whenever i download a pdf it automatically pops up in a pdf viewer. I want to disable it. How to do this?
Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
Google Chrome: Version 68.0.3440.75 (Official Build) (64-bit)