User interface elements displayed in the page (progress bar, logs panel) won't be displayed unlessdom.webcomponents.enabledis enabled inabout:config. When opening pages saved with the option "Images > group duplicate images together" enabled, some duplicate images might not displayed. It is recom...
(If I do re-load the live article today, it turns out that now this is the image being displayed, with a new link and a different scaling system and a dynamic conversion to WEBP format, while the lower quality JPEG versions have been removed.) It can also happen that the origin ...