As a workaround to the positioning issue, we could position a new XUL `<box>` element instead of the HTML input itself and place the HTML input inside that XUL `<box>`.
Bug 1547382 Comment 3 Edit History
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As a workaround to the positioning issue, we could position a new XUL `<box>` element using XUL positioning instead of the HTML input itself and place the HTML input inside that XUL `<box>`.