If you set "Large fonts" in MS Win Display Options Mozilla dialogs are not look good. (Especially if you set custom size of font scaling). All texts are overlaps each other (in lists fist line overlap second e.g). Text is not fit dialogs any more (Thanks to people, who made dialogs resizable by user, or I whouln't be able to click on half of options/buttons). I thinks it is importand, but not critical bug.
*** This bug has been marked as a duplicate of 131670 ***