Thunderbird Community Forum

Curious about the name convention change from Spam to Junk in TB 141. I can't change it back -- I actually prefer "Spam", but I'll "adjust" to "Junk" if I have to. Was this a political thing (ie: the "spam" brand name)?

Hello,

Windows 11 OS / PC

Basically I have Thunderbird installed on my second hard drive. I had several folders of different programs in that drive. I was basically trying to clean up those folders, so I made a folder called programs, and was dragging program files into that folder.

I dragged the whole Thunderbird folder into that new folder. That was where my issue started. After that, the desktop shortcut I had for it wouldn't work. Ok, easy, I went to the Thunderbird folder, found its .exe and voila, made new shortcut.

When I opened that up, it was basically like a new install, asking me to set up username/password pop/smtp etc. I'm decently ok at this, and I know that your Thunderbird profile can just be put in and it will pull everything back up the way it was, only, it's not.

When I looked in the AppData profile area for Thunderbird, it had a profile that was listed at 6:53, 7/22/2025 the exact time I moved the whole folder, and created the new shortcut...

So, my question is, how screwed am I? When I built my PC, I imported the Thunderbird profile over from the old computer to the new one. This was on 12/31/2023. So now, I see no other profiles but from 2023, and from the screwup date, today 7/22/2025.

I should also mention I tried messing with Thunderbird again later this evening, and it made another profile, 10:30 7/22/2025. I knew this wasn't right, and deleted it. So now, when I click on the Thunderbird shortcut, it says profile cannot load Thunderbird, profile is missing / inaccessible. So, Thunderbird won't even load up.

I'm wary of doing a fresh install, as I'm thinking there should be a profile dated between 12/31/2023 and today 7/22/2025, and I don't want a new install to wipe everything if the correct profile is hiding in there somewhere.

If I somehow figure out how to get the main program working again, please tell me the current data from Thunderbird before moving the folder is stored on that original 12/31/2023 profile. I really really really hope the correct and current profile wasn't wiped out when I moved the folder.

Is there a way to do a Windows restore to get it back if it is truly gone? If it is not truly gone, is it still the 12/31/2023 profile (Thunderbird just updates that original profile and keeps the original date that was transferred to the new computer)? If not, how can I find the current one I had before moving the folder? And how can I get Thunderbird to load using that profile?

Thank you for taking time to read this, and if you can help me get my Thunderbird back, you are a God among mortals!

Since last Thunderbird update my sending of email in Thunderbird no longer works. Email provider is AOL and email address ends in @verizon.net ,It is a POP3 config. No problem sending via AOL website. Any ideas to allow Thunderbird send of mail?

A mail folder appears suddenly corrupted. The imap folder in question is duplicated but both folders are empty. In my Profile Folder the three associated files/folders have been duplicated - the new variants have weird file names. See screenshot.

If someone can advise on the best strategy to fix this I would be most grateful!

Thank you

Graham

Connecting to a cpanel server with a normal password, TB has 5 accounts, 4 that work, and I can see the passwords for. The 5th, the one that actually gets used, no longer has passwords listed in the saved passwords. No mail since July 6th. I have the password, but cannot for the life of me get TB to let me enter it. What do I need to do? Haven't used TB in 30 years or so. Any help would be appreciated.

I had a compact card view in 115 that automatically changed itself over to a new expanded card view when a Thunderbird version update in Linux Mint 21.3 changed my Thunderbird version to 128.

Here is a screenshot of how I used to have my inbox and I want to keep it that way now but I don't know how.

Screenshots: https://imgur.com/a/9FziTqh

The first picture is how I had it setup before in 115 and I want to keep that format for 128. The second picture is what TB automatically changed my view to after the update. I didn't manually make any changes.

I have a userchrome.css setup already and it is making some changes but not everything I want anymore. How to I change the userchrome.css to revert the view? I want the colors and size and everything of the lighter color as well as the multi line view.

My userChrome.css is available to view here:

https://www.dropbox.com/scl/fi/x1ss94o727bzbptt64yot/userChrome.css?rlkey=zyywmb73r6pq9li7sah03sid5&e=1&st=cvu2yefz&dl=0

I know userChrome.css isn't officially supported but I want to try anyway.

Hi,

I am seeing an issue where if Thunderbird is running -- 140.1.0esr (32-bit), Windows 11 -- I see my internet connection speed reduced from over 900MBps to less than 300Mbps. Thunderbird doesn't show any activity in its status bar and Task Manager shows only extremely minimal CPU and Network load attributable to Thunderbird.

This is repeatable. Start Thunderbird, give it a few minutes, run Speedtest. Quit Thunderbird, re-run Speedtest. Try the same test with each of other programs that I generally level running. Repeat test with all such other programs running. And then just repeat again to confirm. Results are consistent. The download speeds is affected; upload is not.

And yes, I have run the test after Thunderbird had been running for hours with the same results.

Anybody have any ideas?

-Carl

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 did an update today which failed. I reinstalled Thunderbird and now there are two Draft folders in my GMAIL account. One empty, the other with all drafts. How do I get rid of the one that is empty?

There is also a new folder in my GMAIL account that I did not create called Drafts Backup. It seems to have a copy of every file in my Drafts folder.

Can someone enlighten me? How can I remove this new empty Drafts folder? Where and why did this new Drafts Backup folder come from?

Thanks!

In the past I have had no problems creating email subfolders for the various accounts I have configured. Specifically, my folder structure hierarchy for the problem at hand looks like this:

MyAccountName |- Templates {what is this? A system folder?} |- Expected subfolder A |- Expected subfolder B |- etcetera

When I try to create a new subfolder directly under MyAccountName (right click on MyAccountName > New Folder), Thunderbird creates the folder, but as a subfolder of the account inbox. I can't drag it from my inbox down to MyAccountName. I don't want it as an inbox subfolder, I want it in line with the rest of my subfolder hierarchy. Does this weird "Templates" thing have anything to do with it? And what am I doing wrong?

I am trying to move Tbird profile from one HP to another. When I try to backup or export I get" backup / export failed unexpectedly" . The new installation has a number of profiles but I am lost as to how to proceed. Thanks.

Wondering if slow email delivery is a known issue on the desktop client. I know the issue is not server side because I'm receiving incoming messages immediately on my smartphone client. I'm using TypeApp on android but app and OS type are irrelevant. Comments appreciated.

We use multiple emails that share the same folders. I have been trying to sort the emails using filters, so obviously I have to create the folders prior to sorting. It allows me to create the following pathway. Under one user but seen by all users Winter 2025-2026/Registered Soccer/11v11/2018 GIRLS U8/TEAM NAME 1/REGISTRATION Winter 2025-2026/Registered Soccer/11v11/2018 GIRLS U8/TEAM NAME 1/WAIVERS Winter 2025-2026/Registered Soccer/11v11/2018 GIRLS U8/TEAM NAME 1/CONFLICTS Winter 2025-2026/Registered Soccer/11v11/2018 BOYS U8/TEAM NAME 1/REGISTRATION Winter 2025-2026/Registered Soccer/11v11/2018 BOYS U8/TEAM NAME 1/WAIVERS Winter 2025-2026/Registered Soccer/11v11/2018 BOYS U8/TEAM NAME 1.......THIS IS WHERE IT STOPS LETTING ME CREATE THE SUBFOLDERS AND NOW ITS NOT LETTING US DELETE THE FOLDER EITHER. Is there a limit on the number of subfolders each parent folder can have ?? If not what is causing it to not allow me to create the folder? when I say will not allow I am referring to the create button being grayed out and if I change the name of the file and it ends up showing me the create folder button and upon hitting the botton the pop up screen disappears but it does not create the folder. can someone please help me resolve this issue

I was forced to erase my PC because it was infected with malware. I saved my Tbird profile to my HDD before erasing. I pasted the saved profile to %Appdata% >Thunderbird, copying 1,777 items. When I brought up Tbird, I got the Account Setup window, so I don't think the profile was actually there. What did I do wrong?

I am trying to import a ics file into thunderbird. If I specify a local calendar as the destination calendar, the import works. However, if I specify a caldav-connected calendar as the destination, the import starts but never completes, and I always see an import status of 0%. I have tried importing into calendars from different caldav providers, but in all cases, the import fails. I would greatly appreciate your feedback. For me, this import is a convenient way to semi-automatically populate a web calendar.

I use Thunderbird 140.1.0esr, in Catalina 10.15.7 on a 2012 mac mini. Before 140.0esr, everything worked nicely. Since it updated to 140.0esr (I think), invoking Catalina from the Dock became a CPU hog, using over 100% cpu, (there were 2 Activity Monitor entries: Thunderbird and thunderbird, adding up to > 100%) and causing intrusive fan-noise from the mini's fan.

I thought invoking TB from the Dock was little more than running, from a Terminal:

/Applications/Thunderbird.app/Contents/MacOS/thunderbird &

However, I tried doing that (which I called "invoking TB manually" in the subject above. To my surprise, TB's CPU consumption dropped by about 90%, and the fan shut up. As far as I can see (at least, having sent test messages between various accounts), TB seems to look and work just fine when invoked manually.

My problem is that I'm baffled as to why "Dock" Thunderbird.app is so uncivilised compared to "manual" invocation of thunderbird.

Have been using 128.4.3esr since released and all good and found no reason to update. No changes to the system and my android operates as normal w/ comcast. In the last ~4 days seems email is delayed, but received, send works but seem slower and always upon exit get a TB dialog saying "Could not connect to servermail.comcast.net; the connection was refused". I used to know how to provide log info, etc, but getting old. Dell desktop win 10 64-bit 22h2.

All emails for Jan 1, 2025 to June 23, 2025 have disappeared and I cannot find in any folder. I did not intentionnally delete any of these emails. I need to recover them. Is there a way to do this?