Stop Firefox extension popupset hiding automatically
I am creating a Firefox extension. I have a popupset that is shown when a toolbar button is clicked and also has working code to close the popup manually.
The problem is that the popupset disappears whenever I click somewhere else. I would like to disable this automatic closing behavior. I'm sure I've seen a popupset or panel attribute to control this, but can't find the link anymore. Does anyone know how to do this?
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