Except it's not. That avenue has already been explored, and the pop-up blocker in Firefox is disabled. When it's on, there's also no warning of a pop-up being blocked, as Firefox would typically give. The link simply does not respond. Also, the 32-bit version of Firefox install 55.0.3 seems to be free of this issue, at least in the machines we tested, even with the blocker enabled.
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