Emily, not sure if this ties into the cups printer work that you did; maybe you could take a look when you've got cycles? (Maybe we need a "found a new network printer" event that we can receive and dynamically update the printer list without blocking the user.)
Bug 1722063 Comment 2 Edit History
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Emily, not sure if this ties into the cups printer work that you did; maybe you could take a look when you've got cycles? (Maybe we need a "found a new network printer" event that we can receive and dynamically update the printer list without blocking the user.) (Emilio said he's interested in working/collaborating on this too, if you'd prefer.)