1888690 - Thunderbird reverts to Vertical View

Status: RESOLVED INCOMPLETE

(Thunderbird :: Mail Window Front End, defect)

Description

[Avner Falk]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0

Steps to reproduce:

Set View > Layout to Classic View. Closed Thunderbird. Reopened Thunderbird.

Actual results:

Thunderbird reverted to Vertical View.

Expected results:

Thunderbird should have remembered its Classic View layout.

Comment 1

[Anje]

Tested : Windows 10 OS beta 125.0b2

Tested for both Table View and Cards view

• View > Layout > Classic
• Selected: View > Layout > Vertical
• Exit and restart Thunderbird

Actual REsult:
Opens using View > Layout > Vertical

• Selected: View > Layout > Classic
• Exit and restart Thunderbird

Actual REsult:
Opens using View > Layout > Classic

I cannot reproduce this issue.

Test:
Help > Troubleshoot Mode
Click on 'Restart' button
select checkbox 'Reset toolbars and controls'
Click on 'Make changes and restart'

Please report back with results.

If still a problem:
Possible the session.json file and/or xulstore.json file are corrupted or not able to be written to or there is a clean-up file software on computer.

If you use cleanup software - eg: CCleaner, WiseCleaner or Anti-Virus product that offers the option.
Make Thunderbird profile folder exempt from access.

Test:
Exit Thunderbird
Access profile name folder
Delete: 'session.json' and 'xulstore.json' files

When you restart new default ones get created.
Then set up prefered view options.
Later exit Thunderbird - wait a few moments for files to get updated - restart Thunderbird.
Report on results.

Comment 2

[Avner Falk]

As your colleague david has pointed out, the view layout is preserved in the prefs.js file of the Thunderbird profile with the following line:
user_pref("mail.pane_config.dynamic", 0);
When you set the view layout in Thunderbird, it needs to write this line to the pref.js file. However, to quote david again, unfortunately, something is keeping Thunderbird from updating the prefs.js by itself.