caravena@caravena-530U3C-530U4C:~$ ubuntu-bug linux
caravena@caravena-530U3C-530U4C:~$ [12375:12409:1218/134054:ERROR:nss_util.cc(809)] After loading Root Certs, loaded==false: NSS error code: -8018
Se creó una nueva ventana en la sesión existente del navegador.
[7185:7220:1218/142107:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -106
[7185:7318:1218/142111:ERROR:get_updates_processor.cc(242)] PostClientToServerMessage() failed during GetUpdates
[7185:7318:1218/142115:ERROR:get_updates_processor.cc(242)] PostClientToServerMessage() failed during GetUpdates
[7185:7220:1218/142117:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -105
[7185:7220:1218/143613:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -106
[7185:7318:1218/144540:ERROR:get_updates_processor.cc(242)] PostClientToServerMessage() failed during GetUpdates
[7185:7220:1218/145430:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -106
[7185:7318:1218/162533:ERROR:get_updates_processor.cc(242)] PostClientToServerMessage() failed during GetUpdates
[7185:7220:1218/162540:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -21
[7185:7318:1218/162540:ERROR:get_updates_processor.cc(242)] PostClientToServerMessage() failed during GetUpdates
caravena@caravena-530U3C-530U4C:~$ ubuntu-bug linux
caravena@caravena-530U3C-530U4C:~$ [18327:18362:1218/165822:ERROR:nss_util.cc(809)] After loading Root Certs, loaded==false: NSS error code: -8018
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: apport 2.20.4-0ubuntu1
ProcVersionSignature: Ubuntu 4.9.0-11.12-generic 4.9.0
Uname: Linux 4.9.0-11-generic x86_64
ApportVersion: 2.20.4-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME
Date: Sun Dec 18 17:32:53 2016
InstallationDate: Installed on 2015-07-26 (511 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: Upgraded to zesty on 2016-10-29 (50 days ago)
Same problem. Still on 16.04. Recently installed system76 drivers, didn't notice this error. I can give you the packages last updated, 1/16/2017.