I am running Ubuntu Mate 16.4 on a Raspberry Pi. All the updates are running on manual, since the internetconnection costs 1 cent per megabyte. Only firefox updates fully automatically, consuming traffic volume and money. I would like to set it to manual update (Means, I get notified that a new version is available).
Currently, I have set about:config app.update.enabled and app.update.auto to false, and yet the system automatically downloaded the Firefox 47 update.
Which settings do I need to change?