Public bug reported: As mentioned in comment 5 of bug #1298021, it seems that Google have modified how they package Chrome in their repository.
Based on the fix for that bug, it appears that Chrome was packaged as /opt/google/chrome-stable/google-chrome-stable, /opt/google/chrome-beta /google-chrome-beta or /opt/google/chrome-unstable/google-chrome- unstable based on the package version. The current stable package, google-chrome-stable version 36.0.1985.143-1, from the repository at http://dl.google.com/linux/chrome/deb/installs the binary as /opt/google/chrome/google-chrome, which doesn't match any of the rules added to Apparmor. Adding the following additional line caused the browser to work in guest mode for me: /opt/google/chrome/google-chrome Cx -> chromium, $ lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 $ apt-cache policy lightdm lightdm: Installed: 1.10.1-0ubuntu1 Candidate: 1.10.1-0ubuntu1 Version table: *** 1.10.1-0ubuntu1 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.10.0-0ubuntu3 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1361372 Title: Apparmor stopping Google Chrome from launching in guest session Status in “lightdm” package in Ubuntu: New Bug description: As mentioned in comment 5 of bug #1298021, it seems that Google have modified how they package Chrome in their repository. Based on the fix for that bug, it appears that Chrome was packaged as /opt/google/chrome-stable/google-chrome-stable, /opt/google/chrome- beta/google-chrome-beta or /opt/google/chrome-unstable/google-chrome- unstable based on the package version. The current stable package, google-chrome-stable version 36.0.1985.143-1, from the repository at http://dl.google.com/linux/chrome/deb/installs the binary as /opt/google/chrome/google-chrome, which doesn't match any of the rules added to Apparmor. Adding the following additional line caused the browser to work in guest mode for me: /opt/google/chrome/google-chrome Cx -> chromium, $ lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 $ apt-cache policy lightdm lightdm: Installed: 1.10.1-0ubuntu1 Candidate: 1.10.1-0ubuntu1 Version table: *** 1.10.1-0ubuntu1 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.10.0-0ubuntu3 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1361372/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp