When clicking a link the actual behavior is to change the background color with an hard-coded color.
The normal behavior is to use the CSS class "a:active" to change the foreground color (not the background one).
I don't know how to do that, anyway the default behavior should be the IE one: no color change (foreground or background). This is the best way for now since there's no way to change it.
So, the attached patch simply removes the line: