How to find out which application is sending notifications?

Question

On Ubuntu 16.04 with Cinnamon installed, I'm seeing advertisement notifications like this one:

How can I find out which application is sending these notifications so that I can uninstall or disable it?

Answer 1

I'm running 16.40. My default browser is Firefox. I found it in settings under privacy -> notifications where it was allowing web-push notifications from certain websites that I must have agreed to have received notifications from, not knowing that they could push them through even though the sites pages aren't loaded. (https://support.mozilla.org/en-US/kb/push-notifications-firefox?as=u&utm_source=inproduct).

Answer 2

I am looking a history tool for notification. And see your question here, you can find a history from "recent-notification" applet. And a debug command helps you to find more details:

$ dbus-monitor "interface='org.freedesktop.Notifications'" | \ grep --line-buffered "member=Notify\|string"

Reference:

• https://www.maketecheasier.com/view-past-notification-in-ubuntu/
• Is there a way to view notification history?

Answer 3

I don't know how to do what is being asked, in a general way, i.e. to find out which application is creating a notification, but I found a way to find out which application is creating these particular notifications.

By clicking on them, the default browser (Chrome) opens; as @DK Bose suggested, this implies that it is a browser notification.

Inspecting chrome://settings/content/notifications didn't show any web site that could be creating those notifications, but in this case you should look for other browsers installed in the system.

For instance, Firefox:

Even though the default browser was opening when clicking on the notification, it was in fact an additional browser that was creating them.