Thunderbird Community Forum

Problem: newly added account disappears when TB is closed. Thunderbird on this PC (Dell Latitude 6540) has held a Verizon account for years. The "new" account is a different, equally old Verizon account kept on TB in an identical PC I no longer use. When added to TB on the present PC it tests and works fine until TB is closed. Repeated numerous times. Having read thread # 1286437 I did what follows , to no avail: 1. tried TB in troubleshoot mode; 2. tried in Windows safe mode; 3. cleared startup cache; 4. drastically pruned old emails; 5. looked up profile folder under troubleshooting info. Folder qxxxxxxd ( size 1.18 GB before adding new account) holds one folder tree, one directory tree, but NO prefs.js file. Instead, twenty-two prefs-xx.js files from 1 to 22; removed all to a thumb drive except prefs-1.js which I dared not rename as prefs.js; 6. found two profile folders, both labeled default. One is the above holding 1.18 GB, the other holds 685 MB (probably harmless and related to an old university account no longer extant). I copied both profile folders to a thumb drive. Note: profile folder qxxxxxxd is clearly engaged in what I am attempting. When TB is open with the added new account working -- which is the case as I am writing --, profile folder size increases from 1.18 to 1.20 GB and the number of folders increases by one (under "Mail" the list of pop.verizon-xx.net sub-folders increases from 17 to 18). Please advise on what to do next; I am 86 and no software geek, but can follow instructions... Thanks --Paul

I'm transitioning to a new computer and am having trouble getting my email profile to import. I’ve installed Thunderbird and set up my account on the new machine. I created a backup of my profile folder and attempted to use the import function for the (very) large file, but I keep encountering numerous errors related to hostname connectivity. Here’s the issue: My email address is still @teleport.com, but since Teleport has transitioned to Earthlink, my incoming and outgoing hostnames have changed to include "earthlink" instead of "teleport." How can I successfully import my old profile onto my new computer when the hostnames no longer match?

When I open Thunderbird for the first time after boot the message list doesn't line up with the headers. I have to close it, then restart Thunderbird for the columns to line up.

Was wondering if anyone knew what is going on here and if there is a fix for it.

I have been having problems with Thunderbird ever since I updated from Windows 7 to Widows 10 about 6 weeks ago. But these problems have become overwhelming recently. I have latest version of Thunderbird 128.3.2esr (64 bit). An unusual aspect of my setup is that I do not keep my Thunderbird profile on my C Drive but on another drive. I need to keep many of my emails so I have a large Archives with the emails kept by each year. I also have a large number of emails in Local folders from a previous email software I was using. Over the last few days I deleted a large number of emails from these Archive files to try to reduce the size of them. I also deleted a lot of emails from my current Inbox (as well as moving emails from there to Archives). But my Thunderbird has started to play up in ways I cannot understand: 1. Thunderbird has created about 10 new folders with names like Inbox-1, Inbox-2, Inbox.msf-1.compact-backup, etc. There is even a folder called Trash-1 2. Inbox-3 has one message in it which is one line of garbage - but the size of the folder is reported as 3.8GB! Inbox.msf-1.compact-backup has 1 message in it which is full of garbage and is reported as 6.1MB 3. My Deleted box got large in the process of doing the above. So I have emptied it several times. But the size of the Deleted box keep growing and has now reached 102 GB! I have compacted the Deleted Box and it does nothing. 4. Multiple copies of some of my emails are turning up in my Inbox - some as many as 6 or 7 copies. As a result the size of my Inbox keeps growing. I tried using a Thunderbird Extension that removes duplicates but, although it correctly identified all the duplicates, it stopped functioning when I clicked OK to remove the duplicates. 5. Needless to say that Thunderbird also at times excruciatingly slow and frequently freezes (with "(Not responding) showing on the Thunderbird window. 6. At one stage there were 1000s of message which were dated 1/1/1970 and were blank. I think I have deleted most of those. Using Windows Task Manager, I can see that CPU and Memory usage are always blow 50%. The Disk that the Thunderbird profile is on is sometimes at 100% and sometimes at a low %. But this does not seem to correlate with what I am actually doing. For example right now as I am typing this message, it is showing 100% active time and disk transfer rate of 450kb/sec but I am not doing anything with Thunderbird and the Thunderbird Activity Manager is showing no activity. But another time I could be trying to delete or move emails and it shows a low % of active time on that disk. I have looked through this support site and tried the following suggestion: I have put the Thunderbird profile in the exceptions section of my Antivirus software I have deleted global-messages-db.sqlite and allowed Thunderbird to rebuild indexes I have disabled all extensions as well as the extension I mention above for removing duplicates. I tried opening Thunderbird in Troubleshoot Mode and Windows in Safe Mode. Thunderbird operated more quickly but the problems did not resolve. Bewildering? I have been using Thunderbird for 10 years but after 6 weeks or so of problems and many frustrating hours, I am looking around for alternative email software but I don't want to go to Outlook. Does anyone have any suggestions for email software that can deal with large Archives?

I have been using Thunderbird, formerly Netscape for over 30 years. Recently, I needed to delete about 3,000 messages I had mistakenly downloaded through Yahoo. Thunderbird just crashed. I usually just download a new version and reinstall Tbird. However, it did not work this time. So I copied the entire profile and subfolders to a stick. I uninstalled TBird and then I copied the profile folder back to where it was. Unfortunately that didn't do it. TBird started but no files, no index no nothing just an empty Bird.

So essentially I hired someone to fix the profile which seems to have been corrupted somehow, seemingly with too many sub folders, but I don't have the skills for that. He took the largest of the numerous profiles and somehow got Thunderbird to open. However, the folders opened in T-Bird, yet they contained no files. He tried for hours to populate the files to no avail.

Supposedly, every email folder, mailbox, contact etc is somewhere inside the group of "The Profile" files. I need some expert help me to get these files to show. I am willing to pay for this help.

trying to add email addresses I keep getting a pop-up asking for passsword. I have tried every password I have with no success.

The pop-up says: Password Required - Mozilla Thunderbird.

Hi, I have a python script that send notification email from my server using an outlook account. Microsoft recently changed their security requirement in June 2024. So, I cannot just use SMTP with password anymore, but I can send an email using Thunderbird.

My question: Is there an API for Thunderbird that I can use to send my notification emails ?

regards, DG.

As of yesterday there is a issue on both my computers. Email does not get send. If you create a email and then press send the window somewhat dimes and nothing happens. It is possible to save the email in the concepts folder after the message window is closed. Secondly Cardbook behaves funny. If you select a group no contacts are shown at all. Only if you select the address book contacts are shown. I retrieve my 300 contacts from a NextCloud server. I depend havily on as being active in two different bridge clubs. When I watched the Cardbook screen I saw that the contact were not updated. It happened when I manually started the process. I hope for a solution because I use mass mailing with Thunderbird.

I set up multiple Gmail accounts on TB, and all work as expected. I have turned off Win 11 telemetry and I use an always-on, kill-switch VPN. On TB, each of the outgoing SMPT servers is set to a different Gmail account.

Keeping in mind the settings, above: can Google determine somehow, through TB keys/OAUTH/data/settings etc., that the user of one Gmail account is the same user of another Gmail account?

Also, I can post this question to the separate Android blog, but if anyone here knows the answer to the same question with K-9 (F-droid version), I'd appreciate it.

This is an odd one, and an hour of googling now has turned up nothing except one person on Reddit from 6 months ago with the same issue.

When I open a messasge with an attachment, either in a new window or tab, and at the bottom of the window I click the arrow to expand the list of attachments included with the email message, if I click to select one of those attachments, I would expect that pressing the spacebar would launch a Quick Look to preview the file.

I am moving over to Thunderbird from Postbox (which I should have done long ago, frankly). Postbox is Thunderbird based, and I had no problem with the quick view of attachments in Postbox. I assume there's a configuration setting or something I'm missing that's not allowing me to use quick look to preview attachments. Or, is this by design (or rather, lack thereof)?

Running Thunderbird 128.3.3esr (64-bit) on MacOS Monterey.

Thanks for any input you may have.

I am not very tech savvy, so I apologise if I have asked this question before.

Having just downloaded Thunderbird and trying to add email addresses I keep getting a pop-up asking for passsword. I have tried every password I have with no success.

The pop-up says: Password Required - Mozilla Thunderbird.

Having never, to my knowledge, created a password for Thunderbird, I am stumped.

Any suggestions much appreciated.

Hi,

I have an issue: How to change the location of the Thunderbird's profile folder to another partition (non system)?

When I do so by: 1. Changing in setting destinanion folder to the new one; 2. Closing the program (Thunderbird); 3. moving the directory folder with my profile to the new destinanion according to procedure below: https://support.mozilla.org/pl/kb/profile-thunderbirda#w_przenoszenie-profilu 4. Starting the program it end with error of missing profile.

Hello, I've been using thunderbird since 2013, and have never had as many issues as I have this year. I reinstalled Thunderbird (uninstalled with revo uninstaller so nothing stayed), and then installed the latest version fresh. This seemed to smooth out most of my issues, but I haven't been able to solve this one..

I use Thunderbird because I have multiple email accounts to monitor and like them all in one place. The latest problem that I am having is that my "sent" email is showing up as giberish (sometimes.. Not every email, and not always on the same account).

My system is Windows 11 Home 64-bit

I will attach a screen shot of: 1. My current version of Tbird 2. The email that displays in Tbird 3. The email that displays in Gmail

Thank you in advance! -Eric

When opening an "ics" attachment I was given a popup modal, where I could change the default behaviour when clicking an "ics" attachment. I opted for open with thunderbird as a default, however I want to change this. When looking under "Settings" -> "Files & Attachments" only PDF and Text File are listed as content types with an according action. I also tried right clicking the attachment to see what options I would get but there are only the options "Open", "Save as...", "Detach..." and "Delete".

So there is no way for me to change the default behaviour of "ics" files that I could find.

Does anyone know how to change this?

I am using MacOS 15.0.1 & Thunderbird 128.3.3esr

Before the Thunderbird update to Version 128.3.1esr it was possible to click on an Event in the Lightning Calendar and drag it to a different day. You can still do this when the Calendar is displayed in 'Week' mode, but now you cannot drag an event to a different day when the Calendar is displayed in 'Multi-Week' or 'Month' mode.