@meganrogge @Tyriar Hi I just removed the judgment for the current screenReaderNotification, and after testing, if the variable has a value on each click, the close operation is called first, so it is fine for the logic.

The reason for the change is that the notification center cannot determine whether the notification that the current pop-up wants to pop up already exists, so I used this solution, and I also referred to some other similar behavior features, e.g., the copilot extension, his behavior is also to pop up a notification every time you click, and It seems that their behavior is consistent for now

thanks @weartist!