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My thunderbird program today updated itself from 115 to 128. I lost all the data I had. I had two email accounts in the program. After the update it displays one and an empty mailbox and nothing else. Downloading emails to this mailbox does not work.

I have 5 folders in the location “C:\users\appdata\roaming\thunderbird\profiles” which have 25gigabytes.

What can I do? Is it possible to go back to the old version of the program or restore data?

Thunderbird just auto updated and will not open. Crash report opens as the program crashes. I didnt realize it had updated until checking files. Do I need to reinstall revert back to the old ver. Please advise. Thanks

Hi, Thunderbird was working fine in the morning, but later in the day, it suddenly stopped downloading messages from my Hotmail inbox and asked for my password again. When I entered my password, I got the following error message:

"Sending of password for user mazyarm@hotmail.com did not succeed. Mail server pop-mail.outlook.com responded: Authentication failure: unknown user name or bad password."

Thunderbird won't sign in to check emails. I also get the message:

"Login to server pop-mail.outlook.com with username mazyarm@hotmail.com failed."

And those are the messages I now get whenever I click on the Get Messages button. However, I am still able to access my Hotmail account directly using the Firefox web browser, so I know that my username and password are not the problem.

Does anyone know what's going on? How do I solve this problem? Thank you, Maz

128.3.3esr (64-bit)

Thunderbird automatically updated today, and the elements in the attached screenshot suddenly appeared. I am not interested in knowing what they do; I just want to know how to get rid of them. How can I eliminate all of the elements above and below the search box?

I don't know what they're called, which is why I'm asking here. A clue: hovering over the single unlabeled button, the following text appears: "Keep filters applied when switching folders."

I have multiple email addresses that I read with saved search local folders. That's why I don't need to sort using the buttons in the screenshot that are below the search box. I know what those do, and I would still like to get rid of them.

I've just transferred from one Windows 10 install to another, and wanted to transfer my Firefox profiles along with me. Initially when I transferred over my main profile, the addons worked at first but broke after a short while (specifically there were still as many addon buttons in my toolbar as before, but they were all blank and did nothing), and wouldn't restore after shutting down and reopening Firefox. At first I tried disabling and reenabling each extension, and that worked, but after shutting down and reopning Firefox, they were all broken again. I looked for fixes and tried the solutions in this ask: https://support.mozilla.org/en-US/questions/1260445; first, I tried jscher2000's solution of "deleting" extensions.json by renaming it, but it only fixed a couple addons (BitWarden and uBlock Origin, mainly). Then I tried cor-el's solution of deleting combatibility.ini, and that still only had BitWarden, uBlock Origin, and maybe one or two others working - it also seemed to slightly further the problem, as the toolbar was now set to default without even the blank addon buttons, and the extensions overflow button now just opened about:addons.

But, then I deleted the profile and copied it over again, but this time I preemptively went into extensions.json and changed all the paths to the new correct path (I also did so for the one path address in pkcs11.txt just in case, because it was the only other thing that came up in a search in the profile folder that had that hard-baked full path that might need updating; I don't know what pkcs11.txt does but I just wanted to be sure), and then (not sure if this part matters quite as much) did Create a New Profile and selected that existing copied-over folder as the folder for that profile to use. Lo and behold, all my addons worked! And they've continued to work as normal and not break through several times of closing and reopening both that specific profile and Firefox overall, and even with a couple shut downs and restarts of Windows.

However..... I tried doing that exact procedure (copying over profile folder, editing the paths in extensions.json and pkcs11.txt to be the new correct ones, Create a New Profile and selecting that folder) for my secondary profile, and yet still most addons end up nonfunctional with a defaulted toolbar and extension overflow button opening about:addons just like in the main profile after I did the compatibility.ini fix (even though I didn't even touch it on this profile). After several tries of doing that with differences in naming of the new profile, or also trying to delete compatibility.ini, still I got the same result. Then I tried doing the "disable and then reenable each extension" thing again like I tried first on my primary profile, and it brought the extensions back and in their correct order in the toolbar, but when I exited Firefox and reopened it, they were back to the multitude of blank buttons (which, at least, was a change from before). I have no idea what's different, as far as I'm aware I'm doing the exact same thing that worked on the first profile yet it's still ending up broken.

I've also now tried copying over a third profile in the same manner, and it works perfectly just like the first/primary profile did. But the second profile still just will not work.

I've been using Firefox for a few months now to follow online training courses or videos on the conversation papillon (www.conversationpapillon.com) and conversation santé (www.conversationsante.com) websites. For a few weeks now, the videos are no longer accessible on the pages of these two sites. The window of the video is empty. However, if I try the same link in Google Chrome, it works fine. I've contacted the publishers of these two sites, who tell me that nothing has changed on their sites in recent weeks. He advised me to contact you to find out more. Can you help me? I prefer to use Firefox, which protects my privacy better. Thanks in advance. Regards, Jean-Pierre R.

I understand that Postbox, based on Thunderbird, will never be updated to become compatible with Apple silicon chips. Therefore Postbox will cease to work when Rosetta will be deprecated on macs. Consequently my question is where can I find directions to import messages, filters, and preferences from Postbox to Thunderbird?

I had a dedicated Firefox webpage popup yesterday that listed all my open tabs, tab history. I closed it before I noted the address and how I got there. I searched through my browsing history and I don't see it. I have never been able to access that page before. How do I bring it up again?

Thanks!

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!

Hi,

I have a Mac with Sonoma. Somehow a while ago I ended up with Firefox ESR, which I was told that will not be supported after September.

I am a non-technical user. While I do have Safari and Chrome, I would prefer to continue using Firefox.

Could you please let me know the steps to execute to somehow switch from the ESR version to the current normal version without loosing settings, bookmarks or ending up with problems? Thanks in advance.

I have Thunderbird v. 102.15.1 installed. I do not want to update to v. 115.16.2. I have set HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Thunderbird\DisableAppUpdate = 1. This worked for several months. However yesterday when I turned my computer on, I found that Thunderbird had updated to v. 115.16.2. After a great deal of fruitless attempts to downdate it again, I finally restored all of my C: drive from a backup I'd fortunately made just the day before. That worked and brought back v. 102.

However when I turned my computer on this morning, I found that once again Thunderbird had updated to v. 115. When I go to Menu > Help > About Thunderbird, it shows a window saying "Updates disabled by your system administrator". Yet "disabled" or not, Thunderbird updates itself! (I don't know what "system administrator" means - it's my computer and I'm the "administrator".)

How can I keep Thunderbird from updating without my permission?

I can download my Outlook.com incoming mail to Thunderbird, no problem. But when I try to send mail from Thunderbird (version 128.3.3esr (32-bit) - earlier versions same problem) I get the following error message:

"Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp-mail.office365.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again."

Microsoft provides settings requiring 0auth2/Modern Auth for SMTP mail: (screenshot)

Checking account settings in Thunderbird reveals that Oauth2/Modern Auth, as specified by Microsoft, is not among the options given for SMTP authentication: (screenshot)

I know there has been quite a bit of discussion on this topic but I haven't found anything specific to help; I've been circling around the problem to no avail and I'm sure you clever people will have an answer!

Have I missed or misinterpreted something here, or is Thunderbird no longer able to send Outlook.com mail?

Suddenly Thunderbird will not send emails from one of my computers. Nothing in my configuration has changed. I compose an email, and when I click 'Send' nothing happens except that the menu bar and button strip at the top of the 'Write:' window turn gray.

I can receive emails with no problem. I have another computer with Thunderbird installed and the same accounts on it, and that PC is able to send without any problem. Today is the first day that I have noticed this issue.

When I then close the 'Write:' window I am asked if I want to save the email as a Draft.

Windows 10 Home Version 22HS Build 19045.5011 Thunderbird Version 128.3.3esr (64-bit)

I'm just wondering if it's possible to get a fetch option that happens more frequently than fifteen minutes. On accounts I'm logged into on multiple devices I'll get the email on my iphone app and then I'm waiting for it to pop up in thunderbird on mobile.

Since updating Thunderbird lately to 128.3.3esr (64-bit), "Open in conversation" is grayed out, SHIFT+CTRL+O shortcut also doesn't work. There is a small chance it happened on a previous update, I'm not sure. This function is something I use regularly so this bothers me greatly. I tried rebuilding the global database according to https://support.mozilla.org/en-US/kb/rebuilding-global-database with no luck - the problem persists. The file now has 1,18 MB, I'm quite certain it was significantly larger before. The problem occurs in all accounts I have and it worked on all of them before. Threading itself works properly if I go to View>Sort by>Threaded so the messages are recognized as threads properly.

Hello everyone,

I'm experiencing problems using mailing lists in Thunderbird 128.3.3esr (64-bit).

When the mailing list is not expandend i got the error in attachment, it only work if I expand the list.

Any advice ?

Thanks for your time :)

Hi, I have an email account with GMX which I access using the GMX client on Android and Thunderbird via IMAP on my PC (Win10). I created a new sub-folder which I can see on the phone and also if I access GMX using the web client, but it is not displayed in the folder list when using Thunderbird. I have deleted the app and profile data and re-installed but the folder is still not displayed. Any idea of what is going on here? Regards Richard