Thunderbird Community Forum

I've been using Thunderbird for years. I shutdown my computer (MacOS Sequoia) and went away for a few days, and now Thunderbird hangs when I try to use it. I have one main email account which I access with POP, and a couple of other accounts which I access with IMAP. I can access the downloaded messages in the Inbox of the POP account that I downloaded before going away, but I can't read any other folders (I have many folders since I've used Thunderbird for so long), or access the IMAP accounts. Thunderbird shows that I have new mail waiting on the POP server, but it hangs when I try to download them. It does not show mail waiting on the IMAP accounts, although I know new mail is there.

I have tried re-installing Thunderbird, and rebooted the computer, with no change. When Thunderbird hangs, it eats memory until the system runs out, and I have to use Force Quit to terminate it.

It's the first time I've had a problem with it!

About a month ago I began the process of upgrading from W10 to W11. In the process, several problems happened. One of the problems was with Firefox. After reading and trying many suggestions from the Mozilla site, as well as several other sites, and having no success, I posted my problem on this Mozilla support site and hope that there was someone who could help. There was. After several days of exchanging messages (suggestions, instructions and results - mostly about Profile), Firefox returned.

The other major problem is Thunderbird. I have downloaded a current version (128.5.2esr). I have run it twice and, each time, email was downloaded. So that part seems to be working. What doesn’t appear are the settings I have used and message folders I have created over several years. I suspect that the problems are Profile related.

Starting from Help in the Thunderbird menu, then Troubleshooting Information, then Application Basics, I see Profile Folder. On that line is a button labeled Open Folder followed by (Local Drive). I click Open Folder and File Explorer opens to a folder named ab3xaztm.default-esr. It shows that the folder contains 59 items, including 10 subfolders. All files and folders show a December date.

Following the path C:\Users\rsuth\AppData\Roaming\Thunderbird\Profiles\, in addition to ab3x…, there is another folder nlys3gkl.default that contains only 1 file, times.json.

Because of my earlier struggle – and eventual win – with the Firefox problem, I think that the Thunderbird problem might also be fixed in a similar way: Profile.

Slightly before the upgrading from W10 to W11, I made a copy of my Thunderbird folder. I think if I replace the currently active Thunderbird folder with the one I have saved, my Thunderbird problem may be over. However, I’m not certain that will happen and I’m not certain about the specific steps to take to make the replacement. (With my Firefox issue, there were a couple of small important steps I had to take to make it work, and those steps were explained to me by the person who helped me with my Firefox problem. So, after all these words, can someone point me in the direction to solve my Thunderbird problem?

Thanks for reading.

In certain instances, I can no longer copy/cut from Cardbook notes. This happened in last few months. I just have time now to post the problem. I know since then Thunderbird had updates and so had windows. I am on Thunderbird 128.5.2esr and Windows 11 and firefox 133.0.3 I used to be able to select a word or many words and then right click. Then copy or paste would show up as option in a list. Now no list shows up. But control c and control v sometimes works. If I control c and control v within the note that works. I can copy from something like Word and control c and paste using control v and vice versa. But if try control c in notes and then control v in website that does not work. And that is what I use most.

The path to find stored passwords shown in answers to previous questions is: Tools>options>privacy & security>Passwords. Click 'show passwords'

'Options' is no longer listed under 'Tools', or anywhere else that I could see.

I looked under 'Settings' and 'Account Settings', because I seem to recall it being shown after I scrolled down under one of those headings, but could not find it there.

Please tell me how / where to find stored passwords now.

I love Thunderbird. It is fast, robust and efficient. But now, every time I launch the app, it is in dark mode and it is difficult for me to use it because of my terrible eyes. How can I turn off dark mode ?

I use Thunderbird on Fedora 41 Gnome. Thanks in advance for your help.

All of a sudden the font alignment in my inbox looks really strange, see image, i don't know what happened i didn't change anything, i did restart my computer this morning. I'm on a mac running Sonoma 14.7.1 , thunderbird 128.5.2esr (64-bit)

any ideas what's happening here? thank you!

A couple of months ago Thunderbird started being very slow in multiple situations. I use POP3 and download all mails. I have fairly big mailboxes, some of them up to 2½ GB.

1) Downloading e-mails is slow.

But the worst is this one:

2) Clicking on unread mails first time. This can easily take 10 secs, where the app goes "not responding" and finally "Loading message...." With 10 new mails, it is a lot of wasted time.

3) Dragging mails from one mailbox to another Some of the same behaviour as above.

I have tried to compact mailboxes, but that doesn't help.

I am on release 128.4.1esr (32-bit), windows 10.

I am having a problem syncing my Thunderbird folders with iCloud. Every time I have to explicitly check that I want to subscribe to all IMAP folders in my iCloud account. Then after a short while a lot of folders get unsubscribed and I have to subscribe them again. I have experienced this instability with both Thunderbird and Betterbird as well as on Windows 10 and Pop_OS! 22.04. More people have reported the same issue, but no solutions have been shared:

• https://support.mozilla.org/en-US/questions/1441368
• https://support.mozilla.org/en-US/questions/1444029

Does anyone know how can I fix this?

Thunderbird suddenly can't connect with my email servers. A box from Xfinity pops up: • Xfinity: Sign in with your Xfinity ID (for ***@comcast.net) • but when I do: Access Denied You don't have permission to access http://login.xfinity.com/login on this server. Reference #18bffcc317.1734841179.1c89c1f5 https://errors.edgesuite.net/18bffcc317.1734841179.1c89c1f5

Also Thunderbird error messages: • Authentication failure while connecting to your server imap.comcast.net And Thunderbird error message: • ~Connection to yahoo timed out And my Inbox messages don't show

Please help. I see no cause for this, didn't download anything today. Thanks, Lynn

I’m using Thunderbird on a MacBook Air M1 2020 with 103 GB of free disk space and 8 GB memory. I’m using it primarily as a calendar and task management system because I like the reminder options in Thunderbird. I use local calendars. Thunderbird auto-updated to V 128.5.2 from V115.18.0 on 12/17/24 (I didn’t realize auto-update was set) and since then gets hung every time a reminder comes up and I either dismiss it or snooze it. I have to Force Quit Thunderbird to get the spinning beach ball to go away. I backup my computer weekly using Time Machine and tried restoring to 115.8.0, but was unable to restore my profile with my current calendar items on it. I got an error message saying that the new version of my profile (with my local calendars) is incompatible with Thunderbird V 115.8.0. Is there any way to get my current calendar info into an older version of Thunderbird, or better yet, create a fix so that it doesn’t get hung? If it's time for me to move to a different application for this use, just be honest. Thanks in advance for your advice and expertise!

I live in Peoria, Il USA. our service provider is Comcast. I use Linux Mint Cinnamon 21.3 ver 6.0.4. Just about a month ago, I found I was not able to send emails. I can receive emails easy, but not send on either of the 2 email accounts on my desktop computer. When I tried to send a message I received an error telling me I didn't have permission, so I took pictures of the error messages to the local Comcast office. They told me I needed to change my password.

    After changing my passwords, I tried to send an email to my alternate account and received a "sending message" notice.  I left it in sending message for over an hour.  I closed the sending message.  Then checked all of the account settings and preferences, and changed one setting to "normal password", and repeated the test, I receive the same results.  Using "Software Manager" I uninstalled "ThunderBird" then re-installed "ThunderBird" via  the gui.  I tried the same test, and again received the same results.

    I again went back to the Comcast office and reported my results, I was told that there were 2 other complaints about the same situation, I asked what their solution was and was told to just log into my Comcast Account online to send emails.  I asked them what did Comcast do that caused this problem, I was informed that they are just a sales office, I asked for a phone number for tech support and was told that they don't have a phone number to tech support.

    So, it seems I am on my own to fins a solution to the situation they caused, can you help?

    If there is any further information you need feel free to ask.

Thank you, Evan James

I have Mozilla Thunderbird Version 128.5.2esr on a desktop with Windows 10 Pro. This version of Thunderbird has the message pane to the right of the email list. I very much prefer the older style where the message pane is on the bottom (the full width of the window). Please let me know how to change the settings so that my message pane will be at the bottom.

I tried the help article, but it seems to be out of date and doesn't match what I see.

I have an Inbox with 4 emails.

Then I have another email that has an inbox beneath. I'd like to add this fifth inbox to the global inbox.

One of my email addresses, which I haven´t used for a month or so, has stopped sending messages. I am told to check my SMTP settings. Incoming messages are being received. The server is smtp.office365.com I am using port 587, as recommended by the Outlook site. I was using 465. I have restarted the pc since making the change. The email address is ....@outlook.com Settings are: SSL/TLS OAuth2

I am using WIndows11

I cant find any useful advice on the Outlook site.

Any suggestions ?

koffie Dec 22, 2024, 13:20 CST

I've Thunderbird installed after it was deinstalled by a fail installation routine. On yesterday during this new install thunderbird has recovert the mails but only up to siste month May. The account on gmail isn't available completely.

Is there a possibility to try a completely recovery again.

This is an Ubuntu /Oracular OS. koffie

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Subject: Mapenzi posted an answer to your question "restoring email in thunderbird has stopped with mai 2024" Date: Sat, 21 Dec 2024 18:31:16 +0000 From: Mozilla Support Forum <no-reply@support.mozilla.org> Reply-To: no-reply@mozilla.org To: koffie@gmx.net

Mozilla Support

restoring email in thunderbird has stopped with mai 2024

• Mapenzi* Dec 21, 2024, 2:31:13 AM

What do you understand by "restoring" email? Recover lost email? Recover deleted mail? Download email?