Thunderbird Community Forum

Hi everyone,

Long time, happy TB user and supporter. A new problem has appeared with nebula that I am hoping that the experts here can help me troubleshoot.

When any operation is performed on the emails in one particular account's Inbox folder, there is a 3-5 second pause where TB freezes. For example, when I try to open an email, I see a blank email tab with `Loading Message...` for a few seconds, before the email shows; when I toggle the read status for an email in the folder by clicking on the gray/green icon, there is a few seconds' delay. During this pause I can hear my CPU fan speed up, so seems like there is a spike in CPU usage. After a few minutes, these delays go away, but then reappear at some point (even though TB has been open the entire time) - possibly after new email has been downloaded from the server.

My overall suspicion is that something in this particular folder's files is triggering Nebula. I need help figuring out what it is and fixing it. This is not bad enough for me to ditch TB but it's definitely annoying AF. Strange part is that it appeared only after the Nebula upgrade, which makes me think this is a code issue not a mailbox file issue.

Setup

1. Thunderbird 128.3.3esr (64-bit) on Windows 11 23H2
2. Multiple mailbox accounts, all using POP3 (not IMAP; there is no interaction between TB and the server other than downloading email). Had not changed any settings during the nebula upgrade
3. The account in question has multiple folders in TB. Filters are used to move messages from the Inbox to different folders (and sometimes, to folders on other accounts). Again, the slow performance is only on the single, Inbox folder in one account, and not any of the other folders or other accounts.
4. Profile files are on a very fast SSD. I have not been able to detect a peak in disk usage when the pause happens.
5. The affected folder has 32K emails in it, size on disk 1.5G (+27M for `.msf` file). I have another folder which is 3.1G+20M, that one does not have this problem.

Here's what I have tried, with no changes

1. Compact all mailboxes
2. Repair folder for all folders/subfolders
3. Delete the GLODA to force a rebuild
4. Troubleshooting mode
5. Watching the console in developer tools (no relevant errors appear)
6. Turning on `browser.dom.window.dump.enabled` - no significant errors appear
7. Turning off hardware acceleration
8. Updating graphics card drivers
9. Ensuring that the TB profile folder and windows temp folder is not being indexed by Windows search
10. Checking the filter logs - no errors

Any suggestions or tips on how to gather more data, are welcome. Thanks!

TB 128.3 did not work in Mac OS 15.0 Sequoia. So I called Apple, and they helped me re-install TB. It works fine now, but the layout looks weird. Instead of

Subject of message on left sender in middle date on right

I now get

Subject of message on left sender underneath date on right

How can I fix it? It is using a lot of white space around everything

Thank you

E.

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

Since Thursday last week, I've not been able to receive or send e-mails.

I constantly receive the error asking for my password. It's the same for my hotmail account and my two gmail accounts.

Please help.

Carol

unable to use Thunderbird, try to open program and all I get is a white screen for 2-4 seconds, then a crash report pops up. Unable to get any further. Have uninstalled, cleared cache, reboot, then reinstall. Help appreciated. Win 10. Kevin

Each time I start TB, I get this message: "The folder 'Inbox on redacted@aol.com' 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." What does this mean and what can I do to fix it. Thanks. M. Campbell

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.

I have a fresh install of ubuntu 24.04.3,... on my AMD 'go-faster' PC. S/w all up to date,.. and snaps up to date. In my pursuit of migrating TB email from one m/c to another,... nothing works,.. least of all the TB i/f. My TB screen looks as follows:- with only a few seconds in-between shots. This 'font' type issue is my primary problem,.. and is consistent even if a create a 'new profile',.. emails are display still with funny fonts, ( which change as my mouse moves over them ). secondary issue is in copying over my '.thunder' folder structure, from one m/c to new one,.. is TB insists on creating new profile,.. as it reports profile is outdated,.. yet as far as I can see both are running TB 140.2.0esr 64 bit. I have tried several clean installs,.. but results 'seem' to be the same. Does anyone have any ideas...

I installed Thunderbird (T-bird), and on the "Set Up Your Existing Email Address" tab, I entered my Xfinity e-mail address/password and clicked on "Continue". T-Bird is able to find the proper configuration in the Mozilla ISP database. I clicked the IMAP radio button and then "Done". That opens a popup window with the heading "Enter credentials for <my-email-address> on imap.comcast.net, but the window never prompts for anything (a prompt for my Xfinity password is what I expected). Instead I just get a message headlined "Unable to connect", with the subtitle "The connection was refused when attempting to contact localhost". This is followed by three suggestions for why that might be the case. I verified that: 1. The Xfinity site is NOT "temporarily unavailable" - I can log into Xfinity directly and see my messages. 2. My computer's network connection is operational since I can load any website at will. 3. I do have Windows firewall enabled, and I suspect that is root of the problem. How can I permit T-Bird to access the web??? Thanks.

in inbox suddenly some mails became empty and cannot be deleted nor moved nor archived, other messages not affected. It happened earlier and was asked to delete the inbox folder, that worked. But again same problem happening on the same email account, other accounts no problem. See screenshot, the bad ones have red star. Clicking on bad ones: empty screen. MacBook Pro latest OS and software

Recently when I download messages they are blank in the inbox, but when opened they are in source code! This happens with all accounts. It was working correctly up until 7th August. The only update since then was for .net! I'm running latest Windows 11. When I uninstall, then reinstall Thunderbird, initially any messages download correctly, but any further downloads revert back to the problem in question. Any help would be appreciated. Thanks Ray

reinstalled Thunderbird 140.0.1esr (64-bit). When I attempt to Write a new email: gibberish shows p in the text body. Canot overwrite; have deleted previous version and reinstalled current one; followed trouble shooting steps in Safe mode without change. This doe not ocur in my Android devices. It appears in each of the two email accounts I have running in Thunderbird, 1) gmail, and 2) email account from my business website. I have been a Thunderbird user for 10+ years, and have not encountered this before. any assistance is appreciated! TYIA!

Thunderbird 147.0esr Email arrives. I open it It has the usual 'view this thread' link I click that link waterfox opens all of my home pages.....not the email I have disabled all add ons, in both thunderbird and waterfox....I have changed profile in waterfox & synced with firefox.

I have accounts from Outlook Mail through GoDaddy and Gmail on my Thunderbird desktop app. After the update on 9/17/24 I am unable to send from any of my 3 accounts. Please help.

[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

install on Dell studio 1555 8 gb ram running widows 64 bit windows 10 home solid state drive

Unable to send any emails although all the server settings are correct have the attached dialogue box come up see screenshot. suspect this is not directly a prob with Thunderbird as was having problems with some undelivered email with outlook.

any ideas recive mail is fine

thanks Chris G