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Notifications for incoming Yahoo mail via Firefox have the word undefined after sender's name

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  • Last reply by lorry
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I use Firefox for viewing my Rogers/Yahoo web mail in an open tab. I have granted Yahoo mail permission to send notifications and I get a Windows 11 toast notifications when there is a new email in my inbox.

The problem that I cannot figure out is that the notifications take the form of "X undefined", where X is the sender's name. There is something that is appending the word undefined to the sender's name in the notification. I also note that these notifications are "sticky", that is, they remain visible until dismissed. I would prefer that they dismiss after a few seconds and remain in the notification centre.

I am using Windows 11 Home edition with the latest updates.

I use Firefox for viewing my Rogers/Yahoo web mail in an open tab. I have granted Yahoo mail permission to send notifications and I get a Windows 11 toast notifications when there is a new email in my inbox. The problem that I cannot figure out is that the notifications take the form of "X undefined", where X is the sender's name. There is something that is appending the word undefined to the sender's name in the notification. I also note that these notifications are "sticky", that is, they remain visible until dismissed. I would prefer that they dismiss after a few seconds and remain in the notification centre. I am using Windows 11 Home edition with the latest updates.

All Replies (1)

Hi, the "undefined" text may actually be coming from yahoo/rogers mail itself rather than Firefox. You could try clearing the site's cookies/cache and re-allowing notifications. It may also help to test the same notifications in another browser to compare behavior. The persistent notifications are likely controlled by Windows 11 notification settings

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