I also copied the profiles.ini file from computer 3 to computer 1 but again to no avail.

Furthermore, I found out, that I can open the Error Console on accounts B and C on computer 1 but not for account A on computer 1.

On computer 2 (Windows 10 Pro 64-BIT) and computer 3 (Windows 8.1 Pro, 64-BIT, Thunderbird 60.9.1) the Error Console for mail account 1 opens normally. (both computers TB 60.9.1, updates always fail though on both computers).

Any help now?

Thank you, Holger

On Computer 3 (Windows 8.1 Pro, 64-BIT, TB 60.9.1) Thunderbird now updated to 68.3.1 and mail account A now opens here empty too.

I now installed version 60.9.1 on computer 1 and guess what: yes, hurray, mail account A does not show empty anymore.

Therefore, it seems to be a specific problem of that account in connection with the TB version, but I have no idea how to pin down to what triggers the problem.

See https://thunderbirdtweaks.blogspot.com/2019/09/i-lost-my-profilemail-on-update-to.html

Hello Matt,

Thank you for your support.

I looked up the information on the link. I can only follow the steps partly and I can only start with Menu / Help / Troubleshooting Information if I use one of the profiles that work. If I use the profile that opens empty clicking on "Troubleshooting Information" does not generate any action at all. So I started from one of the profiles that work.

It shows the three profiles of which one is the one that opens empty. If I understand your description correctly I am supposed to click on the button "Launch profile in new browser" of the non-working profile. If I do that it opens the empty profile in a new window but I cannot access the "Troubleshooting Information" to set this profile as default. Therefore, I tried to "Set as default profile" the non-working profile from the window of one of the working profiles. Then I clicked Restart / Restart normally (on the upper right).

This restarted Thunderbird but interestingly with the same profile that I opened it with in the first place and not with the newly set default profile (the non-working profile). It also directly opens the last tab (About profiles) and shows the non-working profile as default even if it did not open as default.

Maybe, I misunderstood your guide but anyway I am stuck here again. I hope you can understand what I was trying to describe.

Any more information needed, thank you again for your help, Holger

in this case, I missed one of the pictures. Rebuilding the global message store appears to be the cure for what your very first picture shows.

https://support.mozilla.org/en-US/kb/rebuilding-global-database

Dear Matt,

Yes, yes, yes.

Thank you very much, Matt, this now solved the problem, Holger

I have exactly the same problem now after updating TB from version 60.9.1 to 68.3.1. I have had my active profile in NAS for years but after the update the account is empty as in your first picture.

I have copied the new default profile to the NAS and it is empty too. And I have copied the old profile from NAS to the local computer it works there. So it obvious that the the new TB version doesn't accept NAS as profile location.

I deleted the global-messages-db.sqlite file and opened TB after that. A new global-messages-db.sqlite file was created automatically but it is totally empty and no activity found in the Activity Monitor. I am using Apple MacBook Air with macOS High Sierra version 10.13.6. Does this matter? You Holger have Windows.

How to proceed? Any idea? Is the downgrading to the TB version 60.9.1 the only solution?

Matt's last comment comment with the solution: https://support.mozilla.org/en-US/kb/rebuilding-global-database

(above my "yes, yes, yes ...")

solved the problem.

MrWeb, if your profile is on a samba 1 share on the nas, you might see issues like here https://bugzilla.mozilla.org/show_bug.cgi?id=1593035

If that is the case I suggest you join in there or open your own support question quoting that source.

Hey Matt,

almost the same problem again. (None of the folders, none of the messages show up).

This time though, the profile does not even open on any of the (now) two computers (profile on a NAS). Also, rebuilding the Global Database / deleting global-messages-db.sqlite does not help.

(If I click on write a new message, I can write a new message, on sending it, it asks for the password and sends the message (the receiving party gets the message) TB but cannot save the message to the "Sent" folder.)

Any ideas on how to fix this?

Thank you for your help and patience, Holger

Forgot to mention: currently using TB 68.6.0 (64-bit) on Win10Pro 64-Bit

Actions manager only shows my Inbox Archive and Outbox Archive were indexed but not my current Inbox, Sent Messages or Drafts.

Nevertheless, even if my Archives were indexed, the respective folders do not show up on the left. Everything, left and right is empty.

Any ideas?

Thank you for your support Holger

Try placing the profile folder on a local drive and see if it works. There is a lack of what is the underlying issue data here, so unfortunately you are going to have to do some playing to get it.

Is it the NAS, the Network connection? or some thing else.

As the NAS is non standard it is probably a good idea to get that one out of the way first.

Do you have an anti virus? If so I would suggest cutting it out of the equation. The data is on the network, so the Anti virus will be scanning everything, both directions, you open a 6Gb file and access it the network will transfer it to temp storage on your local drive and then save the changes to the remote file. This probably places quite a load on the processor and the available time as the network connections will be magnitudes slower than a local drive.

Hello Matt,

Thank you for your help. You helped me already a couple of times.

I have access to three family profiles, all on a NAS. Two of them still open without any problems, only mine opens empty. My is by far the biggest one of the three, containing 2.5 GB of data, the problem-free ones only 1.2 and 0.7 GB.

The network is provided by a router, the NAS is one of the many things connected to it (internet, computers, printers, NAS).

I have put my profile on a local drive now, but to no avail. Since the other two profiles on the NAS are still behaving normal, anti-virus program or a firewall should not be a problem. Nevertheless, after having placed the profile onto local drive and having found out that also here the profile does not work, I also deactivated the anti-virus and the firewall. Still no success.

Any other suggestions?

Thank you for your patience Holger

I drudgingly copied the files from my profile into a new and fresh profile folder and found out, that the prefs.js file was corrupt or did not work any more.

HJStern Question owner said

I drudgingly copied the files from my profile into a new and fresh profile folder and found out, that the prefs.js file was corrupt or did not work any more.

That is usually caused by anti virus scanning. One of the reasons we recommend against allowing them to scan profile folders.