Can you please provide a concrete example? Which Operating System and which Firefox build are you using?
Bug 1669050 Comment 4 Edit History
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Can you please provide a concrete example? Which Operating System and which Firefox build are you using? I'm wondering if the issue you've described is about HTML `<img>`s or [SVG `<image>`s](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/image).