New mail notifications
Periodically to get the Gmail RSS feeds, to notify the New.
It is recommended to the next person.
・Environment that is not available The Desktop Notifications of Gmail.
Settings are as follows.
・Interval to get the feed. - 1，5，15，30，60 minutes
・Time to display the notification. - user operations, 1，5，10，20，40 minutes
・Check to "Continue running background apps when Google Chrome is closed".