Thank you for using Ubuntu and filing a bug. While I appreciate you are frustrated by this issue, lets try to keep the conversation constructive.
First, apparmor would not uninstall the plugin. It sounds like it is blocking it from working. Second, firefox ships the apparmor profile, so I have retargeted the bug to firefox. Rather than purging apparmor you should only have to: $ sudo aa-disable /etc/apparmor.d/usr.bin.firefox Then possibly restart all instances of firefox and it should be back. The apparmor profile is opt-in and not enabled by default for precisely these types of plugins. It sounds like you need to update your policy, and I suggest you add the needed access rules to /etc/apparmor.d/local/usr.bin.firefox so upgrades won't remove them. If you would like to attach your /var/log/kern.log file after seeing the problems, we might be able to incorporate some of the denials into our official apparmor policy for firefox. ** Package changed: apparmor (Ubuntu) => firefox (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/975407 Title: AppArmor removing Citrix Plugin from Firefox Status in “firefox” package in Ubuntu: New Bug description: I'm not sure if this is a bug or Apparmor just sucks. I installed Citrix reciever from here. https://www.citrix.com/English/ss/downloads/details.asp?downloadId=2316611&productId=1689163 It's have doen so several times and it works without a hitch. Until you enforce the generic Firefox profile. It then stops working and apparmor uninstalls the plugin without asking if you actually want it to uninstall it. Then I can never get the plugin reinstalled. Apparmor is blocking reinstall even after I purge apparmor from the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/975407/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp