And a quick fix, which I implemented yesterday [via Dave Farber's IP list]:
Many Mozilla based browsers (Firefox, Camino, ...) and khtml based browsers (Safari), plus a couple others, have a vulnerability that is susceptible to phishing attacks, even spoofed SSL certificates. The usual problems-prone IE, in this case, is immune to this issue.
Read about the problem at http://www.shmoo.com/idn/homograph.txt with the proof of concept at http://www.shmoo.com/idn/. It is a jaw dropper!
No work-arounds so far except for Firefox, detailed at
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