Thunderbird Support Forum

I followed [guide] to move my Thunderbird profile from my old computer with Windows 10 to my new computer with Windows 11, but it is showing up as an empty window with no emails or folders/accounts. It also doesn't show my tabs/session. If I try to write a message, there is no "from" email address. I do get email notifications though, and I saw in Gmail that my forwarding filter worked as well. There is no error message or anything. I tried starting it in Troubleshoot Mode, but the same thing happens, except that the background color is different. I attached a screenshot of it in Troubleshoot Mode. Could this problem be due to Windows 11? Is there anything I can do to fix it?

I experienced a problem with Thunderbird suddenly not recognizing my password. Kept giving me a notice that said my password/account had been "blacklisted". I've never seen that in 20 years. I called my local internet company, Comcast.net for help. He walked me through deleting and re-installing several times before it dawned on me that Bitdefender (anti-virus software) might somehow be blocking my password. I turned off VPN and unchecked all the boxes at Bitdefender. And I could suddenly reinstall Thunderbird e-mail addresses. HOWEVER, all the folders, which I think were stored locally (on my laptop) are gone. I had lots of stuff I use on a daily basis in those folders. How do I get them back? Can I get the back? My server is IMAP but I don't know if they were stored online or on my laptop. Somebody help me, please?

I upgraded from Thunderbird 52 to version 91. Even though all the account settings appear to be correct, I can neither send nor receive mail. What the -- is wrong?

The situation is bad for my hard drive, not enough room to import the outlook files into TB. So is there a way of moving the destination for the import function to another drive so I can collect my eamils to use in TB?

OR

Can I somehow split the import of the emails into 2 or three attempts then save to a memory stick step by step?

I am really stuck so any help I would appreciate please!

Hello, I've just set up Thunderbird on my IMac OS Monterey version 12.2.1 and have synchronized my gmail account. However not all folders have migrated. What is causing this and how can I fix it? Thanks!

I'm using TB 91.7.0 (64-bit) on Mint Linux. I somehow deleted a folder full of messages.

I do have a backup of the entire TB folder from few days ago, but can't figure out how to restore that folder back into the main TB universe.

Everything I have found says to use https://addons.thunderbird.net/en-CA/thunderbird/addon/importexporttools/ but that apparently has been corrupted as a protest by the author.

"Apparently the add-on has been corrupted by the author. "The site and all the extensions have been made unavailable as a form of protest against the illegal fascist measures and abuses against personal rights that have been occurring in Italy (the country where I live) since March 2020."

So, can someone tell me how to restore a folder of messages back into my T-bird successfully? Thanks everyone, Barry

I fried my old laptop and have a new one. After installing Thunderbird, I wanted to transfer my address book to the new laptop. The old hard drive (M2) works and I can access it. I cannot find the address file. I tried copying the entire folder, but that did not work. Should I uninstall Thunderbird from my new laptop and then copy again? Or can you tell me how to find and transfer the address book?

My windows 10 took a powder and had to have it repaired The thing that i may not be able to get are the add ons and the address book that i had on it they are installing anew hard drive but were able to back up some of the files and such. I know it is something about address book and history but not sure how to do it .i and when it comes back can i come back and get help

I have an existing Thunderbird account on my Windows 11 PC. I am now trying to open and access this same account on another PC with Windows 10.This is the message that keeps on appearing:

Unable to login in at server. Probably wrong configuration,username or password.

Any help would be greatly appreciated.

Really annoying, looked through all the threads, tried the various "fixes" nothing works. It should be possible for the Thunderbird app to be in light mode, while the rest of the system is set to Dark.

Hi,

I've recently upgraded to the 91 version and the order of the account folders have changed. i.e. the email folders and the off-line personal folders are no longer in their previous order. How would I change the order.

I tried moving them, but they return to their original position after every reboot of thunderbird 91.

Additionally, is there any good docs about folder paths to learn more about archiving or default settings.

Thanks,

I had Thunderbird running fine under Ubuntu 20.04 and built up contacts and calendar events. i loved it.

I have now upgraded to Ubuntu 22.04 and found Thunderbird has made a new installation and a new .default file. I no longer have my contacts and calendar events.

If we call my data rich original file old.default as the old file and the new.default file as my new empty file with a few recent emails, how can I merge old.default and new.default please?

I need to install a mailbox on a new machine. I have got as far as the second screen on manual configuration, ie the one which starts with IMAP etc but I can't remember what to enter in some of the boxes. I don't know the port number (or even what that means) and on the host name for the outgoing server I think it began with relay but can't remember the rest. My ISP is refusing to help so please can you? JW

Hi, I'm struggling to access my address book from my old PC, which died.

The hard drive still works so I have been able to access the old profiles (why are there 2?) and replaced in the install of this new machine:

"Your Thunderbird profile cannot be loaded. It may be missing or inaccessible."

So.. that didn't work then. I cannot even load Thunderbird now, just gives that message.

The original machine was Windows 7. I cannot run it, so cannot tell you what version of Tbird it was but it was reasonably up to date. Current install is the very latest.

So... what to do next? I can put a copy of the profile back... OK, can start Tbird again, but how to access the old profile with many years of address book?

Manually copying the profile files into the profile folder doesn't seem to work, even after removing the (new) originals. Rather than using the old ones it's just saying it can't find the newer ones, so I presume there's some way of telling it to use those older ones?

Thanks!

Hi Support,

Trying to migrate from Thunderbird 91.8 on an iMac with iOS 10.13 to a MAC Mini M1 with iOS 12.3.

Following all the instructions, but every time when I copy the old profile to the new, T-bird will start with all of the accounts in the proper order, When I go to download mail, it asks for security certificates for every account and will nor download email.

When I exit Thunderbird and restart, about half the email accounts show up, The other inboxes are no longer marked as "Favorite Folder" and none of the Sent, Trash, or SPAM folders appear.

I am out of ideas. My next step is to load a clean T-bird 91.9 and manually move al 40 email accounts and I really do not want to do that.

Anyone with a solution?

Thanks Walt Wise wpwise@comcast.net

We are just migrating to Thunderbird from Outlook, so quite new to Thunderbird... I have recreated an Outlook "rule", as a filter in TB to forward emails from a specific sender to a gmail address. The filter works fine on most of the mails, but fails on one with the error message:

"The mail server responded:  Syntax error - line too long. "

However, the same mail can be forwarded from the inbox with a manual forward. What is the difference between the "Forward Message to" action in a filter -and- a right click and forward to the same mail item in the inbox? ...or does anyone have any other comments? The mail item that fails is an HTML mail of 178KB.