Comment 9 for bug 378394

sudo has had a long history of causing all sorts of problems when running GUI apps with it. (Bug 53845, bug 234982, bug 234982, and bug 112781 to name a few) I've even been bitten by a permissions bug caused by running stuff with sudo. Running graphical applications with sudo has never been supported by either Ubuntu or Kubuntu; but sure, you are free to choose whether or not to use sudo unreliably with GUI apps.