659002 - If starting page is authenticated, no authentication dialog is shown

Status: UNCONFIRMED

(Firefox :: General, defect)

Description

[arnoud]

User-Agent:       Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

If Firefox is started by e.g. clicking a link in Thunderbird, and this link leads to a webpage requiring HTTP basic authentication, Firefox doesn't ask for a password but immediately goes to the 401 Unauthorized error.

During normal browsing, opening or clicking links from anywhere do create the prompt for username and password. But for some reason this doesn't happen if Firefox is _started_ with such an authenticated link as parameter.

Reproducible: Always

Steps to Reproduce:
1. Close all Firefox instances
2. In another application (e.g. Thunderbird), click on a link that leads to a webpage requiring HTTP authentication.
3. Observe how Firefox shows a 401 Unauthorized message rather than prompting for a username and password.

Actual Results:  
See #3 above.

Expected Results:  
Firefox should ask for the username and password like it always does.

Comment 1

[Alice0775 White]

Works For Me
http://hg.mozilla.org/releases/mozilla-2.0/rev/08cd5ee7b7c3
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.2pre) Gecko/20110523 Firefox/4.0.2pre ID:20110523030626

And
Mozilla/5.0 (Windows; U; Windows NT 6.1; ja-JP; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10 ID:20110414114714

Comment 2

[Simona Badau, Desktop QA]

Works for me too on:
Mozilla/5.0 (Windows NT 5.1; rv:6.0a1) Gecko/20110523 Firefox/6.0a1

Reporter, please can you confirm whether this issue still occurs using Firefox with a clean profile?
http://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile

Comment 3

[arnoud]

It does, Simona.