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The first problem cropped up immediately: Thunderbird has done a pretty good job for years of recognizing my email preferences for Inbox, Trash and Junk; now it no longer delivers email to my Inbox or Trash at startup. Almost all of my email goes to the Junk folder, including that from whitelisted senders. All of my individual spam filters and my whitelist are set to act when email is received, but I have to run the whitelist manually to get it to work (sometimes more than once). The only way I can get things into the Trash folder is to put them there manually, as TB apparently has forgotten everything it learned about my email preferences. I did take the opportunity to update my Whitelist (though to no avail), so I guess I'm sort of glad that I was goaded into doing so. But it hasn't helped.

As of tonight, I can't write or reply to an email or edit an email draft because TB locks up while it is "Copying messages to Drafts..." I've had to close TB ten or twelve times, and I've not been given the opportunity to make a bug comment during the closing routine.

I have emptied the TB cache in hopes that doing so would clear up these issues. Though that works well in Firefox, it didn't help with these problems.

I also am not too happy about the disappearance of the File Edit ... folder bar and its being replaced with a hamburger drop-down menu at the upper right, but at least it will suffice once I've unlearned almost thirty years of doing things a certain way.

I really don't want to stop using Thunderbird. I like the program, and I'd hate to have wasted the two solid weeks it took to get Yahoo! Mail to acknowledge its existence and let me connect to their service, which I did under duress. Not that I'm a masochist or anything.

Windows 11 Ver. 24H2 (OS Build 26.100.4351) Thunderbird Ver. 139.0.2 (64-bit) HP something-or-other tower computer, vintage 2021

I have installed thunderbird, but the sub folders in my webmail are not downloading into the thunderbird application. Thunderbird automatically did imap when I added my accounts. I have no idea what the problem could be. Thank you for your help.

Can current Thunderbird (52.5.2) still import old mail from Outlook Express (on Windows XP SP3)?

Or should I try to install an older version like v38.5.0?

I also have my mail in Outlook 2003 & 2007, but I read Thunderbird hasn't been able to import from a .PST for a long time (since v.17 or so). Let me know if I'm on the right track (and which track is best). I stuck with Outlook far too long. Any help would be greatly appreciated.

1. How to move mail between two different Macbooks with different OSX and different versions of Thunderbirds?

How do I move my email profiles (there are several) from an old Mac to a new one, when the old Mac can't be upgraded anymore and the Thunderbird versions don't match?

Old Macbook OSX Monteray 12.7.4 can not go any higher on OSX due to hardware not being compatible Thunderbird 140.5 Oesr 64 bit - don't know if it can be updated or not, but expect not. Minimizing run time as much as I can because the fan is going nuts and I think the battery is going - gets very hot.

I copied all the different profile folders from the Old Mac to an external drive. However, I don't think I can just plop them in to the new Profiles folder on the New Mac, given the Thunderbird versions and OSX version don't match.

New Macbook OSX Sonoma 14.1 Thunderbird 153.0.2 aarch64 Not updating to Tahoe yet because then I can't use my 2019 MS Office products - need to save up to update those first

All I need is e-mail - not calendars, contacts etc., although it might be nice to to have those Thanks in advance

2. How to .pdf old emails (With attachments) Also, the profiles folder is huge (219 GB), with multiple profiles and I want to save old emails (with attachments) into .pdf and appreciate advice on what .pdf converter/file converter would be best. It doesn't have to be free. It does need to respect my privacy.

I am using Thunderbird on Windows 11 and I have foolishly allowed it to update itself to release 128.1.0.esr without checking the bug reports first. Now it turns out that this release removed the possibility to search the calendar for past events, which is absolutely essential for me. There is a Bugzilla entry for this but it is bogged down in discussions about who needs which date ranges to search in and how many instances to show for recurring events, so I don't expect a solution any time soon. How can I revert Thunderbird to the last release which still has that functionality? I have regular backups of my userprofile folder in case it helps.

Help! TB 60 continuously crashes on all of our machines so we're using 52.9 until the bug is figured out, BUT TB insists on auto-updating to version 60 despite turning off auto-update settings. These are the exact non-default update settings we have. Can you help me figure out why TB continues to auto-update?

user_pref("app.update.auto", false); user_pref("app.update.channel", ""); user_pref("app.update.enabled", false); user_pref("app.update.lastUpdateTime.addon-background-update-timer", 1536598499); user_pref("app.update.lastUpdateTime.background-update-timer", 1536598626); user_pref("app.update.lastUpdateTime.blocklist-background-update-timer", 1536598371); user_pref("app.update.lastUpdateTime.search-engine-update-timer", 1536599735); user_pref("app.update.lastUpdateTime.telemetry_modules_ping", 0); user_pref("app.update.lastUpdateTime.xpi-signature-verification", 1536599607); user_pref("app.update.migrated.updateDir", true); user_pref("app.update.service.enabled", false); user_pref("app.update.showInstalledUI", false);

Since yesterday I have Thunderbird nebula 128.2.3esr on my Windows 10. But I cannot find my calendar and the new left sidebar isn't available, but only a little button on the left upper corner with seven button without function. I've tried a lot, I cannot find any description about a same failure in the Internet.

My previous question on this was not resolved.......can anyone help please?

I have an old vista 32 bit PC with windows mail. I have bought a Windows 10 32bit PC I have followed the instructions from this link https://support.mozilla.org/en-US/kb/switching-thunderbird#w_switching-from-windows-mail-or-windows-live-mail-to-thunderbird for exporting the emails on the Vista PC into a folder on a My Book Essential drive. Looking at the properties of that folder it has 3GB and 18,333 files. I then plugged the My Book Essential drive into the Windows 10 PC and followed the instructions (from the same weblink) to import the folder into Thunderbird. The export took about 10 or 15 minutes on usb2. The import seemed to be far too quick and only took about 15 seconds, albeit on usb3. It appears to have imported the folder structure but none of the folders seem to contain any emails. Please can you suggest what I should do?

The files on the USB have an EML extension When I double click on them from the windows 10 pc with Thunderbird installed, they open with Thunderbird.......although not in the same screen as the one in Thunderbird that opens up with my accounts set up.

Thanks David

I've been on Thunderbird for almost 20 years and a Mozilla fan. Have evolved a fairly elaborate configuration of local (POP) email folders, rules, calendar, and accounts to manage & organize email activity, retention, archiving, etc. I've not had to deal with Profiles in previous upgrades and don't have much experience with it.

The recent Oct 1 push of Firefox & Thunderbird 131.0 releases took me by surprise. I was able to re-implement the previous Firefox profile to recover bookmarks, cookies, passwords, etc. However, when T-Bird warned that 131.0 was Beta & unsupported I took the suggestion to download & install the current supported release: 128.3.0 (I was on 128.2.3). Then hell came.

Once downloaded, installed & launched, Thunderbird 128.3 cautioned the new profile created with T-Bird 131.0 was incompatible with previous versions and that I should create a new one, which I did. Still could not get new T-Bird to recognize previous profile, so I tried uninstalling, downloading & reinstalling 128.3 multiple times, each time prompted to create a new profile before proceeding. I tried to follow the previous profile restoration process detailed on support forums & articles, but none seemed specifically relevant to my situation.

I located my profiles in the appdata roaming profile folder, including what I think are most recent based on size of mail folders. Can't determine whether I had just one or several in use due to the extent of my setup. Could really use some help & advice to: 1) Determine which profile was in most recent use prior to T-Bird upgrade. 2) Whether more than one profile was in use. 3) Re-implement the profile I was using on T-Bird 128.2.3 with my new 128.3.0

Regards & many thanks in advance, John C Houston

PS You'll ask why I would upgrade to 131.0 from 128.2.3. Answer: it was on auto-update and 131.0 is what was pushed. No more auto-updates for this guy!

I recently upgraded from Thunderbird 116 to 128 on Kubuntu 22.04, since then it has crashed at least once every day.

For some reason it is unable to send a crash report, instead I get the attached window pop up.

I've - I hope! - followed all the Thunderbird Support instructions on moving a Profile from one computer to another with a different OS (save a copy of the profile file from the first computer, download and install TB on new computer, locate its "Profile" folder, and then either paste the contents of the former profile file into the new profile file [thus overwriting the latter]), then open TB . . . but it didn't work.

I then tried the same, but with a slightly different method: I copied the name of the new profile file, gave it to the old computer's profile file, then renamed the new profile file, and pasted the old profile file -- now with the proper new name -- into the new directory. . . that, too, didn't work.

I've spent a few hours trying to get this to work, and am nearing the point of giving up on TB as an email solution.

Any help would be very welcome!

I know that typically mozilla does not put a low bound on advisories, and https://www.mozilla.org/en-US/security/advisories/mfsa2024-40/ is the advisory for vulnerabilities fixed in ESR 128.2. CVE-2024-8387 is listed here. yet the advisory for 115, https://www.mozilla.org/en-US/security/advisories/mfsa2024-41/ does not list this vulnerability. Was this something that was only impacting 128 (for the ESR builds) or is there a mistake that either 115.15 did patch it but it wasn't documented, or the patch has been missed and ESR 115 is still vulnerable?

A new version of the "List All Tabs" appeared on my toolbar today, shown on the left and hovered over in the attached screenshot (ignore the Malwarebytes extension icon). The old icon for this button was a chevron with approximately the same functionality. I was able to remove the old icon, but I'm unable to find a way to remove this one. Here is what I've tried so far:

• Like the old one, the Customize Toolbar feature is unable to remove it since it is grayed out.
• For a while, I was able to remove the old icon by going to about:config and setting browser.tabs.tabmanager.enabled to false. This solution does not work for the current and some recent versions of the button.
• I attempted to create a userChrome.css file (following all the steps according to this this website) and added the following string: #alltabs-button { display: none !important; }

None of these attempted fixes have removed the button following a browser restart. Is there a way to remove it? I have no need of a button that shows me what tabs I have open when I can simply look at my toolbar.

Hey folks, I recently started the process of migrating my accounts from POP to IMAP. I have several accounts set up on Thunderbird which have been getting mail via POP for years. The idea is to migrate all these accounts to IMAP and I've started the process on one of the smaller accounts, but have already ran into issues with server time outs due to the quantity of mails I'm trying to copy over.

I set up both the POP and IMAP account for the same address on Thunderbird and manually set up the folders (or labels on GMAIL) on the IMAP account to replicate the set up of the pop account. Setting the folder structure manually is not a problem, the problem I've run into however, is that when copying any large amount of mails from the POP account to the IMAP account, it just doesn't seem reliable.

The progress displays in the status bar, but on transferring a folder with about 2,000 emails, it seemed to time out and not transfer everything over. I then had to go through a long process of comparing emails in each folder to know what was left to transfer.

I'm yet to transfer much larger accounts, some with tens of thousands of emails and I need to be sure everything gets transferred properly.

Can anyone suggest a tool or add on or method that even if the server times out, that it can just continue where it left off and I can be sure that all the mails will transfer eventually? I understand the upload process can be slow and I don't mind having to wait or doing it overnight, just as long as it's done right and I'm not left having to compare thousands of accounts, folders and mails.

Any help would be greatly appreciated!

I have a custom pitch black theme ( pls add it without addons ) which now only flashes for a second when i open the browser and returns to the normal greyish dark mode. When i go to Firefox Color addon page and load it again in saved themes it stays pitchblack even if i open another browser window until i close all the browser windows .

I run Mac OS X version 10.11.6, El Capitan. I have used Apple's Mail.app for many years. I'm trying to convert to Thunderbird, version 52.5.2. I have successfully created a TB account, but I have not been able to create usable copies of any of my Mail.app mailboxes in TB.

I have faithfully followed "Importing Apple Mail messages" in the page titled "Switching from Apple Mail to Thunderbird". That method thinks it works, but imports exactly 0 mailboxes.

I also went through all of "Install, Migrate and Update" multiple times, but nothing there helps.

Finally, I tried TB's Events and Tasks --> Import... path, but that processes only files of types .ics (for calendars) .csv "Outlook Comma Separated Values (*.csv)" (or .ics for calendars).

I did discover that Mail.app has an "Export Mailbox..." option, which will produce a mname.mbox directory for each exported mailbox. I've tried getting TB to use that as input by copying it to the Local Folders directory before starting TB. TB somewhat recognizes the .mbox folders that are there, but it doesn't show the mail to me when I select them.

So the question is: How DO I get my current mail copied to TB?

I made a mistake. I had 128 and went up to 140. It pretty much looks the same, but a big difference is an extension I always use says it will not work with 140. I don't care how good 140 might be; if I can't use my app, QUICKTEXT, then I don't need this. How do I go back to 128 or to a version that works with my extension?