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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?

Hello, I opened up Thunderbird and it said it was downloading 28 messages but they don't show up in my inbox. I went online to log in to my email that way and the messages were downloaded. I check the trash in Thunderbird, they aren't there. The time stamp stops at 9:23am this morning and picks up with one message at 1:05 that I received after the 28 went missing. Any ideas where they might have gone? Thank you so much!

i have daily repeat tasks created several years ago. Their notification used to work fine.

Since version 140.1.0esr those tasks notification stopped working. I deleted them and recreated them in a new calendar. Notifications worked for 1 day and then stopped.

Does anyone else have this problem ?

Thanks

Hello! I used Thunderbird on a MacBook Pro with MacOS Catalina 10.15.7. No problems for years up to version 139.x. Now, starting with version 140.x, high CPU load and crash when exiting the Thunderbird. App Error also occurs with a completely new MacOS 10.15.7. Installation only with Thunderbird 141.0 and empty profile.

Does anyone have any tips?

I would like to continue using Thunderbird without any changes.

Best regards, Robert, Austria.

My TB upgraded to V141 today and I lost my google calendar and maybe my contacts too. The contacts are there but I don't think that they are syncing anymore. Calendar appointments missing altogether.

Many of the emails I receive with embedded html do not display right as "original HTML." I have to switch to "simple HTML." Then switch back. This is a real nuisance and time killer. This has been going on for several months now after one of the TBird upgrades. I can find no text display setting that will overcome this. I attached examples of an original and a simple display of the same incoming email.

What gives? This is running on a MACBook with the latest release of Sequoia.

Thanks, Steve

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.

I moved the location of the local folder to a external hard drive because of its size. Guess that was a mistake, because now, all my folders have disappeared. Is there a way to undo the action or somehow recover my folders? Some of the information in the folders is quite important.

Thunderbird causes blue screen in Windows 11. It's very obvious, since it doesn't happen if I don't open Thunderbird and problem normally occurs when I click on almost anything. It normally takes 2-4 reboots before running properly. It makes me nervous!

Ich kann mich mit meinem Account nicht bei web.de anmelden, siehe screenshot. Die selben Zugangsdaten funktionieren aber mit Betterbird! Wie kann ich herausfinden woran es mit Thunderbird hakt?

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)?

Hi:

C:\Users\DonB\AppData\Roaming\Betterbird\Profiles\yssi9i86.default\Mail\outlook.office365.com

Above is my account (new since MS changed the server name. I use Help->Tools->Import to import my account data from Account: pop.outlook.com, all I get is an Inbox loading messages from the newer server name.

HELP!! Thanks, Don

After loading Tbird, a window pops up asking for a password for "the messaging co". I have previously cancelled this service. The are blocking my access to Tbird. Please help. I've tried cancelling and re installing. No luck. I can't receive your email response!!!!

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!

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