1966917 - POP Emails open with blank page

Status: RESOLVED DUPLICATE of bug 1966256

(Thunderbird :: Message Reader UI, defect)

Description

[Peter Williams]

Attachment: ThunderbirdTroubleShoot.html

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Thunderbird/128.10.1

Steps to reproduce:

Running 128.10.0 ESR updated automatically to 128.10.1 May 14 or 138.0
Open POP email inbox

Actual results:

Select an email to preview window is blank.
Double Click Email and empty blank page appears in email reader GUI.
Emails in my IMAP accounts work fine, problem only an issue on POP email accounts

Expected results:

We expect to be able to read emails after upgrades. Downgrade to 128.10.0 I can read the email again. Note This issue happened with 137 -> 138 version update on 5/14/2025 as well

Comment 1

[Wayne Mery (:wsmwk)]

It's unclear to me that a patch uplifted to 128.10.1 will have caused this. And as far as I know there are no other reports, but it has been out only a little more than a day.

Comment 2

[Peter Williams]

Attachment: Screenshot 2025-05-16 120110.png 128.10.0 prompt for update

This is a view of 128.10.0 showing message view prior to update to 128.10.1

Comment 3

[Peter Williams]

Attachment: Screenshot 2025-05-16 120237.png 128.10.1 upgrade

This shows message view after upgrade to 128.10.1 with blank message

Comment 4

[Peter Williams]

Attachment: Screenshot 2025-05-16 121636.png 136 update with email view

This shows update to 136.0 resolves the issue.

Comment 5

[Peter Williams]

Attachment: Screenshot 2025-05-16 121722.png 138.0 blank message issue

This shows the same issue with 138.0. Downgrade to 136.0 resolves the issue.

Comment 6

[Peter Williams]

Greetings, I am happy to retest to reproduce. I confirmed this issue on several computers with both version 128.10.0 esr upgrade to 128.10.1 and this started when we had a system running 136.0 upgrade to 138.0. All machines fail test with POP3 995 SSL mailbox yet work properly with IMAP. See the 4 screen shots attached before and after.

We followed instructions here:
https://www.reddit.com/r/Thunderbird/comments/16jwt7a/%E2%84%B9_how_to_downgrade_from_thunderbird_115_to_102/
Downgrade to 128.0 ESR to resolve the issue. I confirmed downgrade to 136.0 also resolves the issue.

Comment 7

[Wayne Mery (:wsmwk)]

Is any part of the Thunderbird stored on a network drive?

Comment 8

[Magnus Melin [:mkmelin]]

Likely duplicate of bug 1966256 yeah.

Peter, please see comment 7!

Comment 9

[phil]

After updating from version 128.10.0 to 128.10.1, I noticed a similar issue:
When opening .eml files, only blank windows appear, although the subject is displayed in the title bar.
The eml-files are in fact stored on a network drive and accessed by an UNC-Path.

Comment 10

[Peter Williams]

(In reply to Peter Williams from comment #0)

Created attachment 9488313 [details]
ThunderbirdTroubleShoot.html

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Thunderbird/128.10.1

Steps to reproduce:

Running 128.10.0 ESR updated automatically to 128.10.1 May 14 or 138.0
Open POP email inbox

Actual results:

Select an email to preview window is blank.
Double Click Email and empty blank page appears in email reader GUI.
Emails in my IMAP accounts work fine, problem only an issue on POP email accounts

Expected results:

We expect to be able to read emails after upgrades. Downgrade to 128.10.0 I can read the email again. Note This issue happened with 137 -> 138 version update on 5/14/2025 as well

Yes the profiles are stored on a UNC network drive. Confirmed duplicate of bug 1966256. We will disable updates and wait for next release that supports network access to profile.

Comment 11

[Peter Williams]

(In reply to Wayne Mery (:wsmwk) from comment #7)

Is any part of the Thunderbird stored on a network drive?

Yes. Waiting for next release that supports UNC.

Comment 13

[Wayne Mery (:wsmwk)]

Do you find your issue to be fixed with https://ftp.mozilla.org/pub/thunderbird/candidates/138.0.2-candidates/build1/win64/en-US/Thunderbird%20Setup%20138.0.2.exe ?

Comment 14

[Peter Williams]

Greetings,
I have confirmed latest released updates to 138.0.3 and 128.0.2esr resolves this ticket. Please Close as resolved.