Thunderbird Community Forum

I get a message like this every time I start Thunderbird. The topic came up last year but the conclusion was along the lines of "...this problem will be fixed in version 128" but it was never clear whether or not the User followed Mozilla's support replies or what they had to do to clear the email message from Thunderbird. .....Well I'm running version 128.1.1esr and the problem still exists.

My questions:

1. What is Thunderbird trying to do? Compact individual email files? Compae from ct the whole Thunderbird Profiles folder?

2. Is the problem the size of the Profiles folder or the overall size of the hard drive the Profiles folder resides on? What is the Hard/solidstate drive is the maximum?

3. Is the problem related to the amount of Free Space left on the Hard/solidstate drive or is the issue the number of individual files?

4. Is the issue related to the number of Thunderbird files and/or folders OR is it related to the total number of files and/or folders on the hard drive?

5. Is there a limit to the number of sub-folder levels that Thunderbird can navigate?

Thank you.

Tom

Tom O'Brien TOBrienArchitect@gmail.com

When I right click on a document [Show More Options/Send To] Thunderbird email I get the following notice: There is no email program associated to perform the requested action. Please install an email or, if one is already installed, create an association in the Default Programs panel. I've been using TB for multiple years with zero problems, this started when I recently reloaded Windows 11 from scratch (due to a bot virus issue). I have reloaded TB 3 or 4 times. I have also tried creating an association to MapiMail which hosed my Send To link. I had to import a new Send To link from my wifes PC after restoring the registry entry for MapiMail. I have always used the 64 bit version, so the 32 bit version is not for me. I am out of ideas? Anybody else have this problem?

I have been having much trouble with Thunderbird. The latest problem is with the Sent folder. When I try to Compact Folders I get the message "The folder 'Sent on Local' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again."

I have plenty of disk space and have Full Control. I tried creating a temporary folder and moving all the Sent messages to it, so that Sent had zero messages. I still got the same message. The file listing showed Sent to have a size of 182 MB even though it didn't contain any messages. I've tried deleting sent.msf to force Thunderbird to recreate the index - didn't work. I tried using Repair Folder. That worked, but when I tried Compacting Folders again it found another folder with the same problem. I fixed that one and then it said the Sent folder was bad once again. I'm going around in circles!

I've deleted and recreated scores of .msf files for various reasons, trying to get Thunderbird to work without errors, but as soon as I get one problem fixed, another one crops up. I'd conclude that it's my computer, except that I'm not having any problems with other programs.

Any thoughts on this particular problem or Thunderbird problems in general? Thanks.

As of yesterday afternoon 1/8/2025 Thunderbird crashes every time it opens. I tried troubleshooting mode, but it still crashes.

These are the last five crash reports I submitted:

bp-b06aee68-741d-4f5a-8bc4-c15230250109 bp-82e871d5-0479-422f-9ee1-c0d3c0250109 bp-de082294-4c7b-48e4-a20e-db4730250109 bp-993f1d6a-4671-47bf-9d9a-5da6a0250109 bp-6b4de7fd-a602-4632-ae48-961690250109

Please contact me at my alternate email account: tvcrider@gmail.com I suspect that I will not received notices when someone answers this thread. I pretty sure my account is tied to my Thundebird email. Thank you, Joe G

I have a new Macbook M4, and installed Thunderbird 128.6.1esr as default email application.

If a new message comes in, suddenly a white square appears in the upper left of the desktop, and Thunderbird becomes nonresponsive. If I close it, it won't reopen. If I click the white square, a truncated Thunderbird menu appears at the top. See screenshot.

Also, the white square overlays all other running applications, so that anything full screen has the red and yellow close/minimize buttons hidden.

This happens whether Thunderbird is the only application running or if others are running.

It is driving me mad. Any insights how to fix it?

Guten Tag, ich arbeite mit Thunderbird auf Linux Mint. Jeweils in den aktuellsten Versionen: Linux Mint 22.1 Cinnamon Thunderbird 128.11.0esr (64-Bit)

Auf meinem bisherigen Rechner begann Thunderbird mit dem letzten Upgrade von Linux Mint langsamer zu laufen. Da ich mir nicht anders zu helfen wusste, habe ich in einen neuen Computer investiert. Obwohl der Rechner jetzt deutlich performanter sein sollte, hängt Thunderbird mindestens genauso wie vorher. Zum Teil ruft Thunderbird auf dem neuen Rechner auch keine neuen E-Mails mehr ab. Ein Neustart korrigiert das zwar wieder, aber beim nächsten Start kann es dann wieder genauso sein.

Alles, was man in den Foren findet, um Thunderbird schneller zu machen, habe ich erledigt. Cache gelöscht, im abgesicherten Modus gestartet (da ist Thunderbird genauso langsam). Auch verschieben von Nachrichten in Archivordner brachte keine wirkliche Besserung.

Ich nutze Thunderbird für 7 Kalender (zum Teil lokal) und 10 E-Mail-Adressen bei unterschiedlichen Anbietern.

Als Add-on habe ich DKIM Verifyer installiert und aktiv.

Ehrlich gesagt, bin ich inzwischen ziemlich verzweifelt, was das Thema angeht. Witzigerweise lassen sich die Entwicklerwerkzeuge nicht aufrufen. Keine Ahnung, ob das vielleicht ein Indiz für den Fehler sein könnte.

Hat jemand eine Idee? Oder noch Fragen?

Herzlichen Dank.

Hello,

I use Thunderbird 128.5.2esr with xubuntu 24.04.

All of a sudden (I haven't changed anything) thunderbird hangs completely after a few minutes running. The process does not react at all, I have to kill it. Thunderbird process is then stuck on 100% load.

Already testet (with no success):

• Troubleshooting Mode with deactivated Addons
• Disabled Global Indexing (with deleting global-messages-db.sqlite file)
• Waiting for 20min (in case thread/process is running a long time)
• Reboot OS

I have no idea what the issue is. Does anyone have ideas? Thx, Hugo

Thunderbird 138/139, Windows 11 Pro 23H2. While composing a message, after a few lines the app freezes. Both the compose window and the main TB window freeze. Only opening the Windows Task manager allows me to close them. This did not happen with earlier versions.

If I save the message every few seconds while composing I can get most of the message back and continue after restarting TB. This behavior is the same in both the normal and troubleshooting TB modes. I can't even find a crash log to send to Mozilla.

Where shall I look next?

Thank you!

Thunderbird, quite suddenly, stopped getting my email; Both on my account and my wife's account at the same ISP. I spent more than two hours on the phone with the ISPs help line trying to resolve this issue. They also use Thunderbird at their help desk, and the agent I talked to was familiar with your program. She (the agent) was not able to replicate the issue on their system. We then tried to set up a NEW email account. I carefully entered all the info needed for a new account, following instructions from the agent, then hit the 'Test' button. I got the following message onscreen: "THUNDERBIRD FAILED TO FIND SETTINGS FOR YOUR EMAIL ACCOUNT" The answer to the original issue suddenly became very clear - Thunderbird cannot, or refuses to, connect with the email server, therefore NO EMAIL. We tried everything in her toolkit to resolve the problem to no avail. We finally tried UNINSTALLING Thunderbird (and the Maintaince program). Once Uninstalled, I used the Registry Tool on CCleaner to remove any entries in the registry referring to Thunderbird (there were several), then restarted my computer. I then downloaded and installed a totally NEW Thunderbird program. When I ran the Thunderbird again, I found all my account(s) info was still present, and Thunderbird was still unable to find the server. I'm at my wits end trying to resolve this issue, and REALLY HATE to go back to Microsoft OUTLOOK to get my email. Anybody got any ideas??? Any help would be greatly appreciated. (Signed) Proteus

I have Thunderbird installed on windows 11 and have the import export NG tools add-on. I have an mobx file locally that I am trying to import to thunderbird. I created a local folder and started the import but almost immediately I get this error: "TypeError: window.ietngAddon.mboxCopyImport is not a function", and the only thing that gets imported is the name of the mbox file, as a subfolder

Hello--

I've been getting this notification error message for about 1 week now - every time I start Thunderbird (see attachment). I have no idea what this is, what needs to be done to correct it, nor where to go. Can anyone help? I thank you all for your time and help, and look forward to hearing from someone.

Thank you.....

[I am starting a new post because I was replying to someone else's post and it stopped working.]

After updating to TB v.140.0esr (then just now updating to v.140.0.1esr) from v.128esr, I cannot compose a new message in any Local Folders or my main virtual inbox. The +New Message button is there, but clicking it does nothing. It was working for over a decade before this.

However, going into the normal account folder inboxes DOES allow me to click the "+New Message" button and start/compose a new message.

I can still reply to messages in the local and virtual folders, just not start a new message.

I have tried disabling all security software. No luck.

I have ran Help > Troubleshoot mode with no addons. No luck.

When I create a new folder under Local Folders, clicking New Message still does nothing while in that new folder. But if I move that new folder to an existing email account, then go to the new folder, clicking New Message works correctly.

I am on Windows 10. I did use the addon Manually Sort Folders in the past, but not recently.

I ran the Check Error Console (ctrl+shift+J) on TB v.140.0esr. Here is the paste:

1752107893534 addons.xpi WARN Checking C:\Program Files\Mozilla Thunderbird\distribution\extensions for addons This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “”. background.html WebExtensions: Import modules with new 'ChromeUtils.importESModule' implementation.js:34 Hello there, I'm BorderColors-D! background.js:11:9 CopySent2Current: 3.39 on Thunderbird 140.0 Received: pong

1.0.9 background.js:141:33 no migration CardBookXULNotifyListener.js:600:13 TypeError: can't access property "document", currentWindow is null implementation.js:568:15 1752107894980 addons.webextension.{a300a000-5e21-4ee0-a115-9ec8f4eaa92b} WARN Loading extension '{a300a000-5e21-4ee0-a115-9ec8f4eaa92b}': Reading manifest: Warning processing locales: An unexpected property was found in the WebExtension manifest. 1752107894980 addons.webextension.{a300a000-5e21-4ee0-a115-9ec8f4eaa92b} WARN Loading extension '{a300a000-5e21-4ee0-a115-9ec8f4eaa92b}': Reading manifest: Warning processing chrome_injectors: An unexpected property was found in the WebExtension manifest. New compose tab 5 with identity id1 styleswitcher.js:31:15 Applying new border style for identity id1 to tab 5 styleswitcher.js:45:13 New compose tab 6 with identity id1 styleswitcher.js:31:15 Applying new border style for identity id1 to tab 6

What is meaning of the blue bar meter in the bottom right corner? It is stuck in half. After clicking on it the Activity Manager pops up, but with no actual info. If it brings some info about actual processing of data, it should display such info.

Thunderbird v128.4.3ser (32-bit) setup with 4 accounts: Shaw.ca (POP), Shaw.ca (IMAP), 2xGmail (OAuth2). The Shaw.ca (POP) account is the main one, and it stopped receiving email. Another (related?) issue is that Local Folders does not appear. The size of that one Inbox is 4.0GB, which I understand is a limit. I don't want to delete any of that email, but I'm fine with moving/archiving some of it. I moved a whack of it to an Archive folder, but the size of the Inbox and Archive folders don't change (4.0GB + 0.0GB). I have tried repairing and compacting. What can I do? I'm a technician/troubleshooter with many years of experience with Thunderbird ... I recommend it to all 6000 of my clients, because (until now) it is bulletproof.

Hi,

Starting less than a week ago Thunderbird has been running slowly. Sometimes it's quite noticeable and sometime not so much. E.g. clicking on a different folder sometimes happens immediately and sometimes takes maybe 4 sec. to display the folder. Clicking on a message sometimes displays it immediately but can take 7 or 8 secs. to display. Receiving messages seems normal and I haven't noticed slower speeds sending. Clicking on Reply for a message can take several seconds, and dragging a message to a different folder can do the same. Once I'm editing a message the edit speed is normal with no slow down and the address book and editing filters are both fast. I didn't make any changes to Thunderbird, this just started happening on it's own.

I'm running Thunderbird ver. 128.4esr (32-bit) on a windows 10 desktop PC using POP to access messages. I ran Compact on all the folders to no benefit. I don't know what else to try.

Please let me know how to correct this or figure out what's going on.

Thanks, Mike

I am now getting a spinning wheel with annoying frequency while using/trying to use Thunderbird on my MacBook Air 2017 running Monterey. Everything was fine for the first 6-9 months, but over recent months the spinning wheel has appeared more and more frequently while I'm trying to read mail, answer mail, scroll through messages, etc., etc. Now it comes up every few minutes and delays me doing anything for about 15-30 seconds at a time. It's really frustrating. I recently ran Onyx, which was designed to clear cache, etc and make everything run smoothly. But the only program it required me to quit before it started was Thunderbird. Is there some cache or something I need to clear on a (semi-) regular basis to keep it working at a reasonable speed without this godforsaken spinning wheel interrupting everything? Thanks for any/all your help.

How do I change the scroll bar width in Thunderbird? I can change the width in W11, but it has no effect in Thunderbird. I am using Thunderbird version 128.8.1esr 64 bit.

Thank you

I installed Thunderbird 136.0.1 for Windows this week to use with my Gmail/Google account. I'm loving the way it works and the fact that it interfaces with the Google calendars (even the birthday calendar driven by Google contacts) well. The address book seems a bit more inconsistent with syncing/updating and I'm trying to gain an understanding of how that works. If I add a contact the the address book in Thunderbird, it shows up in the web interface in Google contacts. However, If I delete a contact in the web interface, that contact is not removed from the Thunderbird address book. Am I just not being patient enough for the syncing to take place?

Thanks! Rob