Removing active/focus dotted link borders in Firefox 1.5

From Nathan Springs (sonspring.com):

"It is no secret, I love Firefox. I have been using it since the beta version of 0.8. Firefox 1.5 though, has a quirk that proves to be a minor irritation every time I use it. I am of course referring to the dotted outline that appears around every link. In versions previous to 1.5, the outline behaved similarly to Internet Explorer on Windows, wrapping exactly around clickable areas. Now though, it wraps completely around links that have negative value applied to text-indent."

Screengrabs & fix here

Stu Nicholls also talks about it on CSS Play