This policy setting determines whether users will be prompted for non user-initiated file downloads. Regardless of this setting users will receive file download dialogs for user-initiated downloads. If you enable this setting users will receive a file download dialog for automatic download attempts. If you disable or do not configure this setting file downloads that are not user-initiated will be blocked and users will see the Notification bar instead of the file download dialog. Users can then click the Notification bar to allow the file download prompt.