[URGENT] How Do I Fix Thunderbird Email Client User Profile Corruption?

[Drac]

Each account should have a user profile at ~/.thunderbird/<profilename>/ 
within you home folder.

Go into each profile folder and change the foldertree.json and 
session.json file names to foldertree.json.bad and session.json.bad.

Now restart Thunderbird and this should reset each layout and session 
for each profile. You should be able to get the folder pane back and 
make and changes to your layout as necessary. If you can identify the 
one profile you are having trouble with, then don't change the .json 
files on the "good" profile - you don't need to fix what isn't broken

Drac.

On 07/10/15 11:37, Teo En Ming wrote:
> Dear Ubuntu users,
>
> I am using Lubuntu 15.10 Linux as a virtual machine in a Windows 10
> host operating system. The hypervisor/virtual machine manager I am
> using is Oracle VM VirtualBox 5.0.4 for Windows hosts.
>
> Currently, I have 2 user profiles in my Thunderbird email client which
> is running in Lubuntu 15.10 Linux.
>
> I could start Thunderbird using the first user profile without any problems.
>
> Recently, I started encountering problems with my second Thunderbird
> user profile. Previously, I could start my second Thunderbird user
> profile without any problems. But now, whenever I start Thunderbird
> using the 2nd user profile, the folder pane on the left would not show
> up at all.
>
> I have tried the following 2 suggested fixes.
>
> (1) As suggested by the Mozilla Thunderbird knowledgebase, I have
> tried removing the files folderTree.json and session.json and
> restarting Thunderbird. However, the folder pane on the left would not
> show up at all and it is still missing.
>
> (2) The Thunderbird email client version in Lubuntu 15.10 Linux is
> 31.8.0. I have downloaded the latest Thunderbird email client version
> 38.3.0 from the official Mozilla Thunderbird website. Then I performed
> the upgrade to Thunderbird version 38.3.0 as follows:
>
> $ cd /usr/lib
>
> $ sudo mv thunderbird thunderbird.31.8.0
>
> $ cd
>
> $ cd Downloads/
>
> $ tar xfvj thunderbird-38.3.0.tar.bz2
>
> $ sudo mv thunderbird /usr/lib
>
> $ cd /usr/lib/thunderbird
>
> $ ./thunderbird
>
> But still, the folder pane on the left would not show up at all and it
> is still missing.
>
> Hence, I suspected that my second Thunderbird user profile is
> corrupted. How do I fix a corrupted Thunderbird user profile? It's
> either I fix Thunderbird or Thunderbird fix me.
>
> I have considered running the Linux command "fsck /" but fear damaging
> the root filesystem which is already mounted in a running Linux
> operating system.
>
> I am looking forward to any suggested fixes.
>
> Thank you very much.
>
> Yours sincerely,
>
> Subtle Denial of Medical Treatment by the Singapore Government for Mr.
> Teo En Ming (Zhang Enming)
> https://www.scribd.com/doc/258700156/Subtle-Denial-of-Medical-Treatment-by-the-Singapore-Government-for-Mr-Teo-En-Ming-Zhang-Enming
> 7th Oct 2015 Wednesday 6:37 PM Singapore Time
>