At https://dxr.mozilla.org/mozilla-central/rev/833f84d0d5c729054a3aa8b3f34735f56fe6436b/toolkit/content/widgets/notification.xml#491 var result = callback(this, button, aEvent.target); we call a button callback with the event target. It would be beneficial to pass the full event, or at least aEvent.shiftKey. So the patch would be a one liner adding the extra argument. Sorry about the NI SPAM, I really can't see who's in charge of this. Please point me to the right person and also adjust the component of this bug.
Hmm, something funny happened and I created three bugs instead of one.
Status: NEW → RESOLVED
Closed: 2 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1392055
Moving to Core:XUL per https://bugzilla.mozilla.org/show_bug.cgi?id=1455336
Component: XP Toolkit/Widgets: XUL → XUL
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