It turned out Chrome 81 already shipped this change (and broke Slack) so there’s no reason for Mozilla to stop shipping. This rather needs to ride Firefox 77 along with other Exif-related changes (Bug 1616169, Bug 1616411, Bug 1630165, Bug 1632243).
Bug 1607667 Comment 15 Edit History
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It turned out Chrome 81 already shipped this change (and broke Slack) so there’s no reason for Mozilla to stop shipping. This rather needs to ride Firefox 77 along with other Exif-related changes (Bug 1566316, Bug 1616169, Bug 1616411, Bug 1630165).