261770 - Installer doesn't delete old Mozilla/Firefox/Thunderbird versions from Windows "Currently Installed Versions"

Status: VERIFIED DUPLICATE of bug 247884

(Firefox :: Installer, defect)

Description

[Kelley Cook]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20040913 Firefox/0.10
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20040913 Firefox/0.10

Under Windows, after you upgrade Mozilla, Thunderbird or Firefox with a newer
version, the installer leaves the name of the old version in the "Add or Remove
a Program Dialog box".  If you install over the top of an old version, which is
the default, it should delete the previous version's entry in the list of
installed programs.

For example, see the attached file which is a .PNG of my Add or Remove Programs.

Reproducible: Always
Steps to Reproduce:
1. Install Mozilla Firefox 0.9.3 in the default location
2. Install Mozilla Firefox 1.0PR in the same default location.
3. Choose Start -> Control Panels -> Add or Remove Programs.  

Actual Results:  
Both Firefox 0.9.3 and 1.0PR have entries in the "Add or Remove Programs" dialog
box.

Expected Results:  
Only 1.0PR should have had an entry

Comment 1

[Kelley Cook]

Attachment: Screenshot of "Add or Remove Programs" with multilple Firefoxes and Thunderbirds

Comment 2

[José Jeria]

Always uninstall before installing new version. Its strongly recommended. Then
this bug wouldnt be shown

Anyways it is a bug and its already reported.

*** This bug has been marked as a duplicate of 247884 ***