Still not in the updates for Kubuntu. Window appears on every boot after every update of flashplugin-nonfree.
WORKAROUND (to be repeated after every update):
sudo rm /var/lib/update-notifier/user.d/data-downloads-failed sudo rm /var/lib/update-notifier/user.d/data-downloads-failed-permanently
Still not in the updates for Kubuntu. Window appears on every boot after every update of flashplugin- nonfree.
WORKAROUND (to be repeated after every update):
sudo rm /var/lib/ update- notifier/ user.d/ data-downloads- failed update- notifier/ user.d/ data-downloads- failed- permanently
sudo rm /var/lib/