I have problems viewing any transparent images, which have no background color set: the black lines are almost invisible on the dark gray background that Firefox has now set instead of the white color which was in use for 30 years(?).
Everyone has assumed the color is white for so long time, so all the transparent images are now hard to read.
How do i change the Firefox default background color for images (#222222) back to #FFFFFF ?
Firefox version: 13.0.1