Thanks, Rob. Could you test Chrome on Linux as well? Jeremy observed the same bug there, which is a clue that it might be a bug outside of Firefox in that instance.
Bug 1846816 Comment 19 Edit History
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Thanks, Rob. Could you test Chrome on Linux (with Chrome's built in print dialog) as well? Jeremy observed the same bug there (comment 6), which is a clue that it might be a bug outside of Firefox in that instance.