Comment 14 for bug 1429276

=== UX Comment ===

As per the design specification for the new notification system: (http://bit.ly/1P70Dkb)

- In general, applications can fire only one notification at a time, but multiple applications can fire their notification simultaneously. All notifications should be treated as if they are in a queue and will be handled sequentially according to their fire time (in a FIFO manner).

- Grouping notifications from the same app in the notification centre and lock screen:

*If a notification of a certain type is already pending in the queue (not fired yet) when an app tries to send a new notification, they will be combined into a summary notification for that app.
*When the phone is locked, if a summary notification is already displayed on the lock screen and when a new notification from the same app arrives, the number displayed on the secondary icon will change to the correct count (detail text will change accordingly).
*Therefore, the notification bubble should be discarded from the queue and never displayed as a single bubble in normal usage. Same behaviour applies to the notification centre.

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@jonas-drange, you mentioned that when you get 4 gmail notifications without clearing any, the 3rd and 4th notification will only emit a beep. So I understand that this bug is not only related with the screen being locked but also with the number of notifications that are in the queue?

My suggestion is that the grouping of notifications should not be dependant on the number of them but rather on the conditions listed above, otherwise, each notification should be displayed individually.

I'm happy to discuss this further.