Closing as WFM since this seemed to only affect one Firefox profile on one user's machine, and (pending a response to comment 20-22from the reporter) it's likely fixed there as well now, given the site was redesigned.
Bug 1915573 Comment 23 Edit History
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Closing as WFM since this seemed to only affect one Firefox profile on one user's machine, and (pending a response to comment 20-22 from the reporter) it's likely fixed there as well now, given the site was redesigned.