Thread:Support/Enhanced Translation Editor does not work/reply (7)

I got

Error: uncaught exception: [Exception... "Could not convert JavaScript argument arg 0" nsresult: "0x80570009 (NS_ERROR_XPC_BAD_CONVERT_JS)"  location: "JS frame :: http://translatewiki.net/sandwiki/load.php?debug=true&lang=en&modules=jquery%2Cmediawiki%7Ctwn.jserrorlog&only=scripts&skin=vector&version=20120217T083457Z :: anonymous :: line 6371"  data: no]

with Firefox/3.5.3.