It seems that ICANN (and various Internet Domain Registry organisations) have criticised the Mozilla Foundation for disabling Internal Domain Names in Firefox.
Basically, to prevent potiential phishing attacks, as described at
http://www.shmoo.com/idn/homograph.txt (and until recently, demonstrated, but that page is no longer active). Ironically, IE (usually the least secure of browsers) is not affected by this.
Mozilla's response was to disable International Domain Name resolution. This is what has been criticised, as ICANN is trying to encourage non-english domain names. Mozilla has disabled support without apparently considering other options.
Original article at:
http://www.theregister.co.uk/2005/02...la_nixes_idns/