274598 - Help does not work when IE is the default browser

Status: VERIFIED DUPLICATE of bug 272519

(Thunderbird :: Help Documentation, defect)

Description

[Marvin Skorman]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

When you click Help>Mozilla Thunderbird Help, and IE is the default browser you
are redirected to a "Page Cannot Be Found" page with the following URL. 
http://texturizer.net/thunderbird/<NOSCRIPT><META%20HTTP-EQUIV=REFRESH%20CONTENT=
instead of the TB help page.
Clicking on the throbber works fine.

Reproducible: Always

Steps to Reproduce:
1. Set IE as the default browser.
2. Click Help>Mozilla Thunderbird Help
3.
Actual Results:  
Redirected to a "Page Cannot Be Found" page with the following URL. 
http://texturizer.net/thunderbird/<NOSCRIPT><META%20HTTP-EQUIV=REFRESH%20CONTENT=

Expected Results:  
Should have gone to the TB Help page   http://www.mozilla.org/products/thunderbird/

Comment 1

[Mike Kowalski]

*** This bug has been marked as a duplicate of 272519 ***

Comment 2

[Marvin Skorman]

Help>Mozilla Thunderbird Help works fine when FF is the default browser. The
problem is only when IE is the default browser.