I successfully installed pepperflashplugin-nonfree - version 1.8.2ubuntu1.1 from xenial-proposed - version 1.8.2+nmu1ubuntu1.1 from yakkety-proposed
I successfully installed pepperflashplug in-nonfree
- version 1.8.2ubuntu1.1 from xenial-proposed
- version 1.8.2+nmu1ubuntu1.1 from yakkety-proposed