Comment 8 for bug 735670

> The problem here is a bug in keepassx that uses the deprecated systray.
Calling that a bug is a rather bold statement as unity is the only desktop environment that has removed support for classic system tray icons and at the same time does not provide a way to detect that.
I doubt that a keepassx tray icon using the new protocol would be useful on unity since it doesn't allow showing the application on left-click.

> I don't know why the other two are on whitelist.
Mumble is whitelisted because it's heavily used by Canonical and there is no StatusNotifierItem implementation for Qt yet.