Can you please share the output of the following command (will prompt you for your sudo password):
sudo apparmor_status --pretty-json Also, can you run the following command in a terminal, leave it open, reproduce the issue in libreoffice, and share output from the terminal? journalctl -f | grep libreoffice Thanks! ** Changed in: libreoffice (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1779804 Title: libreoffice cannot send document by email Status in libreoffice package in Ubuntu: Incomplete Bug description: Since 18.04 ersion, I am not unable to send a document by email (File->Send->Document by email). No thunderbird window. If libreoffice in run in terminal, message: /usr/lib/libreoffice/program/senddoc: 62: /usr/lib/libreoffice/program/senddoc: file: Permission denied /usr/lib/libreoffice/program/senddoc: 70: /usr/lib/libreoffice/program/senddoc: /usr/bin/thunderbird: Permission denied rights seems good: % file /usr/bin/thunderbird /usr/bin/thunderbird: symbolic link to ../lib/thunderbird/thunderbird.sh % ls -l /usr/bin/thunderbird lrwxrwxrwx 1 root root 33 mai 22 00:10 /usr/bin/thunderbird -> ../lib/thunderbird/thunderbird.sh % ls -l /usr/lib/thunderbird/thunderbird.sh -rwxr-xr-x 1 root root 2,7K mai 22 00:10 /usr/lib/thunderbird/thunderbird.sh ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: libreoffice (not installed) ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Jul 3 06:11:25 2018 InstallationDate: Installed on 2018-06-16 (16 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) SourcePackage: libreoffice UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1779804/+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