When dragging, the drag avatar (image) is not correctly styled:
In FF 3.6
- centered thumbnail label becomes left justified and turns into a link
- thumbnail image changes in size
- a black horizontal line appears below the thumbnail image.
- thumbnail dimension increases in size
- the drag avatar only consists of an image.
- text and box styling not visible.
- thumbnail image changes in size.
[See comments for Mac OS 10.8.5 issues]