Typekit.com link from CCDA = HTTP errors

Accessing "Browse Fonts on Typekit" from CC Desktop App, I get an HTTP abort  in Firefox 20.0 on Windows 7 x64. IE10 on the same machine gets as far as Typekit's own "Sorry, something has gone wrong." page, then dies.

The Typekit website itself is accessible, but the *enormous* code variable in the URL breaks it. The URI works fine on my XP machine, but that's not where CC is installed so it doesn't help.