Am running Chromium on 13.04. For the last few days every morning I get a notification that says "Failure to download extra data files." The dialog box specifically indicates pepflashplugin-installer and has a prompt "run this action now."
If I run the action, no complaints. At some point, the dialog will return. If I run the the installer from the CLI, my system tells me that I already have the latest version.
I read elsewhere to try this:
sudo rm -f /var/lib/update-notifier/package-data-downloads/flashplugin-installer.failed
This doesn't stop the notification from reappearing.
I've also tried, but the notification immediately reappears:
sudo apt-get --reinstall install flashplugin-installer