Hi, I'm also a user of Firefox Nightly with the same issue. If anyone is having this issue it seems to be due to an issue with webcomponent-loader.js where firefox is misreporting (or webcomponent loader is misparsing) polyfill options.
I recently had a blank notification showing (KDE plasma) with Chrome. I created another user account on my computer and it seems to have cured it. No more blank notifications.
Ok, more bug hunting...Thanks Ja' I'll start with switching to Gnome as I'm getting a recurring log with plasma (KDE) that freezes the desktop but chrome still works and also this ext'
nah! dang it...I installed calendar checker and enable desktop notifications and signed in using chrome. Back to bug hunting... (was watching a vid' and it just freezes the screen where a notification should be on the bottom right hand)
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I created another user account on my computer and it seems to have cured it.
No more blank notifications.
I'll start with switching to Gnome as I'm getting a recurring log with plasma (KDE) that freezes the desktop but chrome still works and also this ext'
Now back in KDE and hasn't happened again (here's hoping)
Thanks for the support Jason and for providing such a great addition to browsing.
Back to bug hunting... (was watching a vid' and it just freezes the screen where a notification should be on the bottom right hand)
my logs are racing in a loop;
Feb 19 23:38:51 localhost.localdomain plasmashell[1577]: file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationItem.qml:184:13: QML Heading: Binding loop detected for property "height"
Feb 19 23:38:51 localhost.localdomain plasmashell[1577]: file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationItem.qml:184:13: QML Heading: Binding loop detected for property "height"
I added buttons (Delete) on the Gmail notifications and this triggers the blank space, that and also having it replicated with KDEconnect app between my devices.
https://joaoapps.com/fully-costumize-buttons-in-gmail-notifications-with-autonotification/