Hi, Not sure where to begin. Had issues w/mouse and decided to reimage. Copied all files from C:\Users\user\AppData\Roaming\Thunderbird. Now have no msgfilteres, folders in Local Folders, or an Address Book.

I used info from https://windowsloop.com/backup-restore-thunderbird/. Was this wrong? Where did I mess up?

Thanks

15.18.0 how to export to mobile from settings in the desktop thunderbird so i can use my android phone--if it will help, on my desktop there is no Export to mobile in settings!!!!!!!

I am having problems with a page on my local network NAS server. In console this message appears on every page I access:

Failed to fetch moz-extension://84d877f6-188e-f449-9e14-68b144dea3de/inline/injected.js, Import failed 3 times. Final error: crypto.randomUUID is not a function

          inject-content-scripts.js:5:897

To check if it was my code I tried this simple html page (apparently the page has to be inspected so that the code appears):

Dumb Page

I'm sure this is a really dumb question but I'm all set to unzip my profile backup into new machine. I see it named in the Quick Access window, but a double click on it brings an error message that I have to unzip it first. Clearly I'm learning both my laptop and win 11 at the same time, and I don't know where/how to unzip it. I'm confused, I hope my question isn't. Can anyone talk me thru getting it unzipped so I can import it into Tbird in new machine? Thanks, Stacy

I have a new Thunderbird profile, fixing the many problems with the old one, ably assisted on the MozillaZine Tb forum. One matter not really helped, and there is, of course, too much wrong information on-line.

My question: How do I properly copy the filters from the old profile to the new one? I did a search here before posting, but found no answers.

Hi,

I make extensive use of saved searches in Thunderbird and find them extremely useful. However, I have not found a way of exporting/importing the searches, so when I set up a new install I have to start from scratch with the search folders. This can take quite a while.

Does anybody know a way to do this?

I have tried using the profile folders, but they do not seem to save the search properties.

Any help would be very welcome.

I have a huge and vital archive of past emails in Thunderbird on my old Windows 10 PC. The hard drive containing the Thunderbird profile has now failed and I can't access its contents. I have a new Windows 11 PC and have installed Thunderbird on it. I thought I had backed up my Thunderbird profile on an external drive, so have copied this backup onto the new PC, and have tried to use Thunderbird's Import function, but I get an error message each time, saying 'import failed unexpectedly'. The backup I'm using was saved using a data backup program called Bvckup2 and consists of folders called '$Archive', 'Cache2', 'Safebrowsing' and 'StartupCache'. Am I doing something wrong? Is it possible I've been backing up the wrong thing? Am I going to have to send the failed hard drive to a data recovery specialist and hope that they can access it?

Any user views on Betterbird over TB. The developer has done a great job and has one thing I do like and that is the ability to colour the highlighted email account rather than just the envelope icon. Experiences are appreciated so I can make the informed decision on which to use. Should I decide to use it how does one just port TB and its settings over to Betterbird.?

Thanks for views.

Hello,

Moving from an older Ubuntu 18.04 machine where Thunderbird is limited to version 102 to a newer machine running Mint 22 where the current version is 128.6

According to https://support.mozilla.org/en-US/kb/upgrading-older-version-thunderbird This should work without issue but the latest version mentioned in the article was 115.

Any change since the article was written? Do I need to install older versions to handle the migration to the latest?

Alternately would using the Export / import tools be better for this task than transferring the profiles?

Thank you

I have an 8 year old PC that I have been using Thunderbird on its entire life. I have 5 email accounts (from my own website if that matters) on it for personal use that have tons of information.

I bought a new computer and have not been able to move my old data to it. The old computer uses Windows 10 with Thunderbird Version 115.5.2 (32 bit). The new computer uses Windows 11 and I have tried several Thunderbird versions with the current one being 128.12 0esr (32 bit). I have added one of my email accounts to my new computer, but it contains none of my previous data (emails, contacts, directories, etc.), just a bare bones account that only receives new email.

I have repeatedly tried to move my entire source computer setup and data going through all of the described steps including copying the previous Thunderbird folder to a flash drive. I then follow the directions for copying and pasting my source data into the new computer's "roaming" section. It goes through all the steps including asking if I want to overwrite existing files. I have almost 14,000 files and as the process continues, I can see file names being added just as I would expect.

After everything is complete, when I restart Thunderbird, the only access I have is once again to the bare bones new email account. There is no data, nothing at all, from my source computer.

Help please, this has gotten beyond frustrating.

Hi,

I use Thunderbird's Message Filters to sort my incoming mail. I have about 31 filters, some of which are long ("Delete Junk" and "Advertisements" are two, which OR many domains and send mail directly to trash or a specific "Adverts" folder). I also use several Linux computers and run Thunderbird on each computer for connecting to my GMail account (IMAP). I like to synchronize my filters between my Linux hosts. I've been pointed to the file for copying filters between hosts: HOME/.thunderbird/MyProfile/ImapMail/imap.googlemail.com/msgFilterRules.dat

Copying that file between hosts (or using it as a backup after SNAP damaged my profile again) only partially works. The filter name, action, etc copies alright, but when triggered, the filter fails as the "folder" does not exist. Of course, the folder still exists and has for a long time. The following is a log entry from such a failing for a "magazine" entry for "Aeon".

[4/25/25, 12:35:15 GMT-4] Applied filter "Aeon magazine" to message from Aeon Weekly <support@aeon.co> - This week: Why AI science will be incomprehensible at 4/25/25, 12:34:22 GMT-4 moved message id = 89c6e02ebaf75bbc918731474.c3e7d573b0.20250425163412.c7ad5cda2b.7a1e170f@mail220.suw16.rsgsv.net to imap://mdalphin%40gmail.com@imap.gmail.com/Maillists/Aeon

[4/25/25, 12:35:20 GMT-4] Filter action failed: "Move failed" with error code=0x80550009 while attempting: Applied filter "Aeon magazine" to message from Aeon Weekly <support@aeon.co> - This week: Why AI science will be incomprehensible at 4/25/25, 12:34:22 GMT-4 moved message id = 89c6e02ebaf75bbc918731474.c3e7d573b0.20250425163412.c7ad5cda2b.7a1e170f@mail220.suw16.rsgsv.net to imap://mdalphin%40gmail.com@imap.gmail.com/Maillists/Aeon

The entry in msgFilterRules.dat reads as follows after the failure: name="Aeon magazine" enabled="no" type="17" action="Move to folder" actionValue="imap://mdalphin%40gmail.com@imap.gmail.com/Maillists/Aeon" condition="AND (from,ends with,aeon.co)"

A "diff" from a saved version of the file that worked shows that it is identical except for "enabled".

This failure happens to 100% of my filters - the "actionValue" is not recognized as I move the file between hosts or different profiles. I need to re-select the desired folder in the drop-down list of "Move to:" in the "Edit Filter" dialog.

Any idea on what is going wrong? It is as if there is some cache of recognized Imap folders that have unique IDs on a per host basis. Is there anyway I could make this copying work better without need to restore each of the 31 folders every time I make a copy?

Thanks, Mark

I rarely stop thunderbird, running your 137.0.2 atm because debians 128 turned into a crash-o-matic while downoading my inbox from shentel.net several months ago. Your help menu sometimes doesn't display versions. But everytime I restart thunderbird, I have to setup my local folders and msg filters from scratch. I am subbed to quite a few lists, probably 30 or more and it usually takes around 70 msg filters to get it all working. Why can't there be continuity? Or, how can I recover my local folders and msdg filter?

Thank you. Cheers Gene, CET

I have had Thunderbird on Laptop #1 for years. There are many folders on it. I have many message filters I rely upon to sort my messages. Laptop #1 is Thunderbird 15.18.0 (32 bit) on on esr update channel. I am working on having a different Laptop #2. I have installed Thunderbird 144.0.1 (64-bit) Release Channel on Laptop #2.

My email client uses POP mail.

I wish all of the folders and setting I have on Laptop #1 to migrate to Laptop #2. That has not happened. Please advise if you know what I need to do to accomplish this. As should be apparent, I am not an IT pro.

Thank you very much for any help you can offer.

I reset my PC and saved the wrong profile path, so i cant restore my thunderbird profile the normal way. However, I exported the profile to my phone and the thunderbird android app, where it is still stored. Can I export my profile from the App to then import it on the PC version? thx for your help!

I just migrated my Thunderbird from my old MacBook to my new Mac Mini. I tried following the official instructions and the instructions in the linked thread, but I experienced the same problem the other users did— that Thunderbird, on the new Mac, would act as if it was setting up a new account, even after replacing the entire Thunderbird folder in the user's Library folder. With some investigation, I was able to detect how to fix the migration, though I can't tell you why Thunderbird behaves this way.

Here are the instructions I followed: [https://support.mozilla.org/en-US/que.../1397228]

The process of copying the old Thunderbird is correctly described. However, there is still some funny business on the receiving end.

What I determined was that Thunderbird, for whatever reason, wasn't reading the information in the profiles.ini and installs.ini in a way that launched the migrated installation. Instead, it still created a new installation and a new profile and overlaid those on top of the information in the migrated files, making the newly created profile the default and ignoring the migrated profile when launching.

In order to correct this, I needed to manually edit the profiles.ini and installs.ini file (in a simple text editor) to use the NEW installation but substituting in my MIGRATED profile for the newly created one.

I'm sorry I didn't take screen shots before deleting the files, but the important thing is to edit both files so the both are using the NEWLY CREATED installation ID but that both files only reference the OLD profile ID (deleting all other mentions of the newly created profile and deleting mentions of the old installation ID. This is just a copy/paste operation.

I've attached screenshots of mockups of what my new profiles.ini and installs.ini look like. The important thing is that both have the NEWLY CREATED installation ID (not the one copied from the old Mac) with the OLD profile ID.

In order to upgrade to Win 11, unfortunately I must do a clean install.

I very much need to know what I need to do pre disk wipe to preserve my settings, do the right kind of backup of my various accounts, and be able to access my previous settings and account data once I install Tbird on my new system. It is very important for me to be able to access my old account data for legal reasons.

Thank very much in advance.

Doc

Please indulge this silly question. What possible benefit is there for Mozilla continuing to list this page with the very first, oldest Firefox release at the the top, requiring the user, every time they visit, to scroll to the middle of the page to search out the current latest version instead of having the chronological order from latest to oldest instead?

Trying to "copy" my Win10 Thunderbird setup to Manjaro Linux. Have read the help page on moving to a new PC, but there are a few "differences" from the article and none of the obvious things I tried are working. (note this has worked in the past going between Win machines)

Win10 TB version is 115.10.0; Manjaro TB version is 141.0. I can locate the windows dir and copy it; it is "Thunderbird". The Linux dir is ".thunderbird". I've tried copying the win dir tree over and renaming it to .thunderbird but that was a bust. TB just recreated a .thunderbird dir with defaults in it.

So I am wondering what to try next. There is a .1 version of Win TB, with that have a more compatible dir structure for linux? Something else to try??

Thanks

Witajcie, Mam pytanie. Czy jest jakieś ustawienie lub dodatek do Thunbirda, który odpowiada za eksport i import filtrów wiadomości (i tylko o ten element chodzi). Chcę skopiować filtry wiadomości z jednego konta (nie wiadomości) i wkleić do kilku innych (w jednym programie), a także skopiować je na dwa inne komputery i inne konta. Dotyczy to też strukturę katalogów (nie wiadomości) do których przypisane są filtry.