It is still a bit forward looking, but I can give you one quick "for instance":

Using the data that is being collected today, we can analyze poor performance and stability and correlate it with certain extensions and plugins, going down to the level of version and platform specifics. We can then provide better blocklisting based on this data, in addition to providing the user with the tool to see the results for themselves and offer suggestions such as updating an add-on or uninstalling it.