Problem found! Thanks to a few persons who helped: Rimas and Wilco (hallo daar!)
You helped me find the culprit. I was initially going to ask on for a pstree of someone also running KDE, but then it struck me: I use alltray with thunderbird to keep it in the system tray ('docked'). This is so natural for me - I didn't quite remember that this wasn't a feature of thunderbird itself (why isn't it, anyways :)) So the tree became kdeinit-+-alltray |-artsd |-compiz.real ... |-python `-smart-notifier thunderbird---run-mozilla.sh---thunderbird-bin---6*[{thunderbird-bin}] Instead of kdeinit-+-artsd ... |-smart-notifier `-thunderbird---run-mozilla.sh---thunderbird-bin---8*[{thunderbird-bin}] Note how thunderbird is not a (grand)child process of kdeinit when using alltray. I imagine this wreaks havoc on the IPC (security?). Anywyas, I can live with using thunderbird without alltray when reorganizing my mailbox. Also, I'll see whether options/alternatives exist to make thunderbird run in the system tray. I imagine both KDE and thunderbird are prone to have this feature natively by now. Thanks and I hope someone else is helped with this information. Regard, Seth -- drag&drop moving of message does not work https://bugs.launchpad.net/bugs/79289 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs