Hi Sebastien, $ gdbus call --session --dest org.freedesktop.Notifications --object- path /org/freedesktop/Notifications --method org.freedesktop.Notifications.GetCapabilities
(['body', 'body-hyperlinks', 'body-markup', 'body-images', 'icon-static', 'actions', 'persistence', 'inline-reply', 'x-kde-urls', 'x-kde-origin-name', 'x-kde-display-appname', 'inhibitions'],) And there was definitely something interesting in the debugger console: mail.notification: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIAlertsService.showAlert] _showAlert resource:///modules/MailNotificationManager.jsm:359 _fillAlertInfo resource:///modules/MailNotificationManager.jsm:219 MailNotificationManager.jsm:362:22 _showAlert resource:///modules/MailNotificationManager.jsm:362 _fillAlertInfo resource:///modules/MailNotificationManager.jsm:219 I hope that helps. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/2056481 Title: [snap] Thunderbird does not support native notifications on KDE Plasma Desktop Status in thunderbird package in Ubuntu: Confirmed Status in xdg-desktop-portal package in Ubuntu: Confirmed Bug description: After testing and upgrading, I have discovered that the thunderbird snap does not support native notifications on KDE Plasma Desktop on either Kubuntu or Ubuntu Studio (same packages and desktop, really). This might be an issue with xdg-desktop-portal, so I'm also going to mark it as affected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/2056481/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp