Thunderbird Community Forum

I installed thunderbird on another mac and used these directions to try to transfer all my info and configurations from my other mac: https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer

When I copied and pasted the profile from mac #1 into the Thunderbird/profiles files in mac #2 then launched TB I get a message Profile Missing: Your Thunderbird profile cannot be loaded . it may be missing or inaccessible.

I tried to paste the whole folder into profiles and I also tried to paste the content of the profiles folder into the new folder 7n1rgaj8.defualt, within profiles, see image attached.

once I close the error message TB closed down.

Any help would be greatly appreciate.

thanks

The method I found successful in creating my Thunderbird profile on a new PC was different from the posted method. I hope this method helps others. Both Ubuntu 24.04.4 Mate and Thunderbird 155.0/ On the source PC I copied the .thunderbird folder to a USB drive. On the destination PC I opened the thunderbird folder (not hidden). Copied 123xyz.default and 456pqr.default-esr to this folder. Replaced profiles.ini with profiles.ini from the source PC. Opened Thunderbird and found my familiar experience.

I wish to back-up my Thunderbird profile, but apparently, I am to find an "export tool" under the "tools" menu. Unfortunately the option to 'export' does not appear in the list [but "import" does...!]

My old Widows 10 computer died. All I have left of it is the last full Acronis 2020 backup. I have installed Thunderbird on my new Windows 11 computer and want to restore my Profile data from the backup. How do I find them? Have been searching for days and can't find anything like in your profiles help article.

If I can't recover the data can you at least send me my current license key?

Hi, Need help with maps that cannot be removed. Thunderbird downloaded my map configuration, after a new Thunderbird installation, from my online account/my internet provider which was OK. After that I removed all maps on my online account but the maps in Thunderbird is still there but out grayed and I cannot delete them?

I uninstalled Thunderbird and also removed Thunderbird associated maps under %AppData% and %LocalAppData% but when I do a new clean installation same maps shows up in Thunderbird again? I waited some days and did a new installation again, but same issue. I have also deleted everything in W11 cash memory.

Attached picture shows the out grayed "NyMapp and subfolders" I cannot delete. How do I get rid of those folders?

Any help is appreciated.

I want to copy my windows Thunderbird profile to Linux but my Profile Directory will not open when I press open directory. I downloaded Thunderbird from the Zorin app store, and it may be a flatpak or something – it won’t tell me now because I have already installed it – but I believe that could be a reason for the directory not opening. Is there a non-PC-literate way of finding out and fixing this?

With a new Thunderbird installation on Windows 10 Pro, I attempted to import my profile data from a Postbox on another machine. The process failed, citing two errors (see attached screen shot), EmptyDatabase Error: "blocklists/addons-bloomfilters" has not been synced yet Uncaught NS_ERROR_FILE_NO_DEVICE_SPACE: Component returned failure code: 0X805200010

The profile being imported is pretty large -- around 20Gb, so I wonder whether I have surpassed some capacity limit. I was doing this via the Import Tool on the Tools menu.

Porting my legacy mail folders is crucial. Any help would be greatly appreciated.

bold texti have a thunderbird profile on exterior drive I have installed linux mint on my PC but cannot locate the profile to use my old TB profile -either by replacing it or renaming the old profile for the linux one

I have followed the instructions for transferring the Thunderbird profile from my old computer to my new computer. However, the updates do not come across. I don’t get all of the folders that I created on the old computer. The email works fine.

The import function does not work. I exported a Thunderbird profile in its entirety into a zip file that is only 127 megabytes when extracted. When I go to import the Thunderbird profile, I select the ZIP file, import, and it restarts, and nothing happens.

I have tried the method of going to the profile folder, manually copying the files from the extracted profile, and pasting them into the profile folder and overwriting all of the existing files, which will work for a few seconds- it briefly shows all the emails, and then they disappear. The top of the inbox indicates the correct number of emails, but no emails show up in the inbox, and when I restart Thunderbird, everything disappears.

I just deleted the folder C:\Users\alan\AppData\Roaming\Thunderbird and replaced it with a backup I made a few days ago. To my surprise, when I opened Thunderbird, I could see messages that I'd downloaded today. What is going on?

The summary says it all. My T-bird acc't combines both outlook and gmail and now I wish to transfer the data into a new T-Bird (account?) on a new computer. I'm going from an ASUS Zenbook to a HP Omnibook AI.

Many thanks ! I should sign my name as "Totally Lost". Regards, Andre

I downloaded Thunderbird to my new machine, followed instructions to copy the Profile Folder from the old machine and pasted to the new machine. I didn't get a message asking whether I wanted to replace the data on the new machine. When I started Thunderbird, I am not seeing all the data I expected - no address book, only 200+ emails, no sent emails. What did I do wrong?

My Thunderbird Desktop Version 140.9.0esr 64 bit. Help please. Installed Mobile T'bird on android mobile. On Desktop (MS Win11) T'Bird followed Settings - Export to Mobile - included all email accounts and Passwords - Export resulting in pop up box requesting Pin number. Don’t know a Pin nor can find a Pin nor find Settings - Accounts - Sign in options to change it.

Having tried more than a dozen sets of downloaded instructions, including those from Mozilla Thunderbird and Apple, I have become increasingly frustrated and convinced that Thunderbird doesn't work on a MAC. Can you offer any "official" instructions? Thank you!

I am running Thunderbird 140.8.1esr on macOS Tahoe 26.3

I created an IMAP account in Thunderbird to replace a POP account

I want to copy the Thunderbird message filters from the POP account to the IMAP account

I read articles on Mozilla Support and these said to copy the msgFilterRules.dat file but I cannot find this file

How can I copy the message filters?

I'm reading this> https://support.mozilla.org/en-US/kb/thunderbird-export#thunderbird:linux:tb148 Looks great but all of my messages sit on IMAP servers and I don´t need a backup of those. I _do_ need a backup of settings, passwords, pgp keys, to move to another workstation. It is unclear what exactly is exported.