User-Agent: Mozilla/5.0 (X11; U; Linux i686; de-DE; rv:1.7.6) Gecko/20050223 Firefox/1.0.1 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; de-DE; rv:1.7.6) Gecko/20050223 Firefox/1.0.1 Firefox 1.0.1 fails to display the punycode of `dasörtliche.de', instead it shows the original IDN. "www.dasörtliche.de" will be transformed to www.xn--dasrtliche-gcb.de, but it fails on the URI without "www." prepended. If you enter "dasörtliche.de" into the address bar and press enter, the webpage is loading, but Firefox does not place `http://' in front, as on other web pages. Reproducible: Always Steps to Reproduce: 1. Enter "dasörtliche.de" or "http://dasörtliche.de/" into the address bar. 2. Click "Enter". Actual Results: The webpage loads and it still displays "dasörtliche.de" or "http://dasörtliche.de/" in the address bar. Expected Results: The webpage loads, but it prepends "http://" (if not entered) and displays the punycode http://www.xn--dasrtliche-gcb.de/ instead of the IDN.

Confirmed using Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050223 Firefox/1.0.1

Small correction to my "expected results": Firefox should display http://xn--dasrtliche-gcb.de/, not http://www.xn--dasrtliche-gcb.de/.

This is firefox only and could be caused by the autoreplace (adding www in front). wfm with Mozilla/5.0 (Windows; U; Windows NT 5.2; de-DE; rv:1.8b2) Gecko/20050226

The problem isn't that it adds "www.", it's that the URL bar isn't updated with the URL obtained at: http://lxr.mozilla.org/mozilla/source/browser/base/content/browser.js#3307 which results in having the domain displayed as typed.

I think I've got the reason for this behavior: "dasörtliche.de" (respectively the punycode "xn--dasrtliche-gcb.de") does not exist in DNS (only "www.xn--dasrtliche-gcb.de" exists), so Firefox prepends "http://www." and loads "http://www.xn--dasrtliche-gcb.de/", but does not update the address bar. I can reproduce the same bug on normal (not IDN) domains: enter "thomaskaschwig.de" (which has no DNS record) into the address bar. Firefox loads www.thomaskaschwig.de, which is a redirect to http://www.kaschwig.net/, but still displays "thomaskaschwig.de" in the address bar. The page info dialog shows the correct URI: http://www.kaschwig.net/

This seems to be a duplicate of bug 264610. *** This bug has been marked as a duplicate of 264610 ***