490504 - privacy.item.cookies default change causes unexpected cookie loss when upgrading

Status: RESOLVED DUPLICATE of bug 488706

(Firefox :: Settings UI, defect)

Description

[Michael Ryan]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b5pre) Gecko/20090428 Shiretoko/3.5b5pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b5pre) Gecko/20090428 Shiretoko/3.5b5pre

In Firefox 3.0, the default for privacy.item.cookies is false. In Firefox 3.5, the default is true. This causes unexpected cookie loss when "Always clear my private data when I close Firefox" is checked and "Ask me before clearing private data" is unchecked.

Reproducible: Always

Steps to Reproduce:
1. Create a new profile and start Firefox 3.0.10
2. Check "Always clear my private data when I close Firefox"
3. Uncheck "Ask me before clearing private data"
4. Visit a few websites to get some cookies
5. Close Firefox
6. Open Shiretoko 3.5pre5
7. Close Shiretoko
8. Open Shiretoko

Actual Results:  
Cookies are removed without warning.

Expected Results:  
Cookies should not be removed. One possible solution would be to always ask before clearing data on the first shutdown after upgrading.

Comment 1

[Michael Ryan]

This was caused by the checkin for bug 480169.