Thunderbird Support Forum

Suddenly, Thunderbird 78.9.0 (64-bit) Win10 is very very slow

I don't want to reinstall and have to redo all my settings - anything I can do for this?

All else works OK on the PC, Thunderbird was OK before.

Any way to back up my settings so I don't have to do all that again?

Thank you

I have spent the last two days trying to re-establish receiving/sending emails on my Apple MacBook Pro using Thunderbird without success. This problem developed suddenly about 3 or 4 days ago and only affects the MacBook, not any other device (I have an iMac and two iPads). I have gone through the instructions in Thunderbird's support pages and those in Mozilla with no success.

How do I fix this please? Would the easiest way be to simply delete the account xxxxxxx.gmail.com from Thunderbird on my MacBook and re-instate it by adding it back in?

All the setting for IMAP and SMTP are correct and the username/password is identical on all my devices.

On 30 May, you may lose access to apps that are using less secure sign-in technology

To help keep your account secure, Google will no longer support the use of third-party apps or devices which ask you to sign in to your Google Account using only your username and password. Instead, you’ll need to sign in using Sign in with Google

Hi,

TB 91.5.0 on Windows 10 (with profile folder excluded from virus scan)

The latest update to seems to have resurrected a problem with saving copies of sent emails. Sending works fine, but copying of the sent email to the sent folder causes the send dialog to hang. Disabling the "Place a copy in:" option in account settings eliminates the problem. Using the "Other" option to place it in a local folder works *that is not part of a unified folder* works OK.

I have tried repairing folders and deleting the sent files inside "smart folders" in the profile, with no luck.

Older details here: https://support.mozilla.org/en-US/questions/1363781

I am going around in circles here. I have searched and all the options I have found appear to be out of date or don't work. All I want to do is increase the size of the fonts I see in the left hand folders list and the folders message lists in the main panel. It's far too small for me and everything I have tried makes no difference. Please guide me.

I have a script:

D:\>cat tb.bat rem batch script to set environmental variables and then start Thunderbird rem 20Feb21 0728PM Barry Finkel rem 21Feb21 0904AM Cloned from tb-append.bat; removed ",append" rem 10Mar22 0315PM Added SMTP

rem set MOZ_LOG=POP3:5,timestamp,sync,append rem set MOZ_LOG=POP3:5,timestamp,sync set MOZ_LOG=SMTP:5,POP3:5,timestamp,sync set MOZ_LOG_FILE=C:\Users\BarryFinkel\Desktop\pop3.log START C:\"Program Files (x86)"\"Mozilla Thunderbird"\thunderbird.exe

D:\>

I need to log SMTP traffic when I send a piece of mail from Thunderbird. What I see in my pop3.log.moz_log file is SMTP traffic when Thunderbird downloads mail from the server. But I do not see the SMTP traffic when I send a piece of mail to the outbound server. When I look at previous logs, I see SEND records in a log from 2020-03-02. Did something change in the SMTP logging? I am running Thunderbird 91.8.0 64-bit in Windows 10 Professional 21H2 64-bit.

Why does my Sent messages folder not appear in my Folder pane? My settings are for All folders to be viewed. I'm using Thunderbird version 78 in Windows 10. Thanks for any help.

Hello,

This morning when I opened Thunderbird it wouldn't accept my master/primary password. I've used the same one for years, so I know I've not forgotten it. Plus it worked yesterday!

Only thing that seems to have changed is the update to Thunderbird 91.

Any tips would be greatly appreciated.

In a world where respondent's often draft messages about a new subject by lazily replying to messages on an old subject, does anyone find Threading helpful? Why is it now the default.

After View/Sort by/Unthreaded then propagating that by "apply current view to all folders." All folders do in fact sort by unthreaded. But if I create a new subfolder it defaults to sort by threaded. Please, is there anyway to entirely disable Threading?

Hi, I want to use Windows Task Scheduler to send command line emails via Thunderbird.

I have found only: thunderbird -compose "attachment='C:\first.txt,C:\second.txt'"

This works. But I also want to include email to, subject, text body and send.

I have tried options like Blat. Blat works but not with gmail.com as they block it. So with Thunderbird installed locally I may be able to work around the new gmail restrictions.

Many thanks.

I'm migrating to a new computer and from Windows 10 to W11. I have successfully exported/imported the contacts using the export tool, but cannot figure out how to ex/im the calendar. I am using a SanDisk drive to move the files. Both systems have TBird 102.1.2 (64-bit).

Please give step-by-step instructions to do the calendar (only) ex/im. I do not use the Mail feature.

How do I disable the ANNOYING message box I get every time I want to send a message to the trash folder. Thunderbird keeps asking me if I want the message deleted to save disk space. This just started in the past week. I want my deleted messages to go to the trash folder and I will manage that folder. I can't seem to find anything in settings that lets me disable this option.

I can't back-up my mailbox.

• I have the same problem as in the question from markosv63 8/19/20, 10:01 PM (now archived) in that I have many emails in many folders.
• The procedure recommended to markosv63 doesn't work. That procedure is in https://support.mozilla.org/en-US/kb/imap-synchronization#w_configuring-synchronization-and-disk-space-usage.
• I don't think I use an imap account because my server type is POP Mail - Port 110 (default).
• I followed exactly the recommended procedure but the result was a folder marked updates, containing a folder marked 8216C80C92C4E828.
• 8216C80C92C4E828 contains a folder marked updates plus two files, one file called update-config.json and the other called updates. This updates folder contains an empty folder marked 0 plus two files, marked backup-update and last-update.
• None of these files or folders contains any emails.

Starting on June 1, when I tried to use Thunderbird, I have to log into my Gmail account. I enter my email address and password and the next screen states: "Sign in with Google", which I do. The last screen in the process is "Mozilla Thunderbird Email wants to access your Google Account". I click on Allow and then the following message appears: "Authentication failure while connecting to server imap.google.com"

When I go back to Thunderbird and click on "Get Messages", I am put back into the Login loop, including 2- Step Verification..

I've used Troubleshoot Mode, I've cleared the startup cache, but neither has resolved the problem.

More Troubleshooting Information

Application Basics Name Thunderbird Version 91.10.0 Build ID 20220525135609 Distribution ID Update Folder C:\ProgramData\Mozilla\updates\D78BF5DD33499EC2 Update History Update Channel release User Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Thunderbird/91.10.0 OS Windows_NT 10.0 19044 Application Binary C:\Program Files\Mozilla Thunderbird\thunderbird.exe Profile Folder C:\0-TBird\Profiles\jsxynuvz.default (Local drive) Build Configuration about:buildconfig Memory Use about:memory Performance about:performance Registered Service Workers about:serviceworkers Third-party Modules about:third-party Launcher Process Enabled Multiprocess Windows 0/0 Fission Windows 0/0 Disabled by default Remote Processes 3 Enterprise Policies Inactive Google Location Service Key Missing Google Safebrowsing Key Missing Mozilla Location Service Key Missing Safe Mode false Profiles about:profiles Telemetry Data about:telemetry Mail and News Accounts ID Name Incoming server Outgoing servers Name Connection security Authentication method Identity Name Connection security Authentication method Default? account1 [user name]@hotmail.com (pop3) pop3.live.com:995 SSL/TLS Normal password Wes <[user name]@hotmail.com> smtp.live.com:587 STARTTLS Normal password true account2 Local Folders (none) Local Folders None Normal password account4 [user name]@gmail.com (imap) imap.gmail.com:993 SSL/TLS OAuth2 "[my name]" <[user name]@gmail.com> smtp.googlemail.com:465 SSL/TLS OAuth2 true

I can use account1 - [user name]@hotmail.com (download, read, delete, messages), but I no access to account4 - [user name]@gmail.com. I have no idea what account2 - Local Folders relates to.

On June 2 during a 2-1/2 hour unproductive session with a good computer technician I've been using for probably 10 years, Security Alerts were sent to account1 - [user name]@hotmail.com (as set up as a security step in Gmail): "2-Step Verification turned on", "App password created to sign in to your account", "App password used to sign in was removed", etc.

I have personally spent over 8 hours over the past 3 days exploring solutions suggested to other users with a similar problem but nothing has helped.

I have checked for stored passwords; there are none.

Please let me know if you need more information.

Thank you very much for you help! I will save whatever is left of my sanity!

For the past couple of weeks Thunderbird has exhibeted some unwanted behavior. #2 I often shut down T'bird with multiple emails, each in their own tab. Recently, I seem to have accumulated multiple open email tabs. I have gone back through the open tabs and closed them (there have gotten to be quite a few, and it is a fair investment of time to get them all closed). I am not deleting them, just closing the tab each is on. Then I close Thunderbird. Next time I open Thunderbird, be it a few minutes, a few hours, or the next day or so, all the emails I closed are once again opened upon startup. This is making a huge number of tabs be open, and I am unable to make them stay closed. I am not deleting them, just closing the tab each is on. Why is this occuring (started a couple weeks ago, maybe around the same time Firefox auto-updated to v92 or 93, can't recall which.

After updating Thunderbird to the new version 91.9.1, most of my email messages disappeared.

An error message was displayed after updating to the new version. Thunderbird restart chashed and I started the program again, just to noticed that the messages were not anymore in the folders.

How can I recover my messages?

Andy

According to the help document, "Allow me to view "hidden" attachments" [https://support.mozilla.org/en-US/kb/.../configuration-options-attachments] "There is a special view mode for messages which allows you to see all of a message's attachments, even "hidden" ones, in its attachments list. Because this view mode is not needed by most users and could be confusing to some, it is disabled by default. To enable it, install the "Show All Body Parts" add-on."

Unfortunately, the add on "Show All Body Parts" is no longer supported in 91.3.2.

Our non-profit uses Vertical Response Vertical Response for connecting with supporters. When a supporter replies to an email sent via Vertical Response, the return email is attached to a generic form sent to us by VR. I need to view all hidden attachments in order to reply to an email from our supporters. I need to be able to click on the contact_reply.eml attachment in order to reply.

Any help you could give would be greatly appreciated. Thank you in advance.

This problem has been around for ages, but since a clean install of Windows 11 Pro (64-bit, v21H2) a few days ago it's gotten much worse. I'm using Thunderbird 91.2.0 (64-bit). Used to be that every few days I'd get the "Add security exception" failure (see image) when trying to connect to smtp.googlemail.com (209.85.232.16:465). See the images for the details from viewing the certificates. (I've already worked with Bitdefender to try to resolve this problem -- after completely disabling it the error still occurs, but with different certificates. The Bitdefender cert goes away and I get the smtp one plus one for "GTS CA 1C3" and another for "GTS Root R1" which weren't there before disabling BitDefender). None of the certs have expired in either case. Once I add the security exception, telling Tbird to remember it, things will work fine for a couple hours then it happens again. The frequency of these errors has gotten a whole lot worse since running on Windows 11. I'd rate it as having left "annoying" and entering "frustrating". Anybody have any ideas? Thanks, DougP

How do I change "POP" server to IMAP server? Verizon default to AOL requires an IMAP address. Putting new IMAP address in doesn't work unless the server type is changed. You can't delete it and change it in "server" settings. This 77 yr old needs more guidance please.

Outgoing SMPT doesn't need a change. Thank you.