Thunderbird Community Forum

Hello, I use Thunderbird 140.10.0esr, installed as Flathub flatpak on Fedora Linux Kinoite. I just found out I have a folder in /home/<user>/.var/app/org.mozilla.Thunderbird/.thunderbird/1tniiwpw.default-release-1/storage/default/ called https+++www.googletagmanager.com. I wonder why I have this and what it does in the Thunderbird settings. It has something to do with Google's LLC, but I don't want to be part of that. I removed the folder completely and hope it won't come back, but I wonder. Who can tell me something more about this folder? Thanks.

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

The website https://www.thunderbird.net/en-US/thunderbird/all/ provides portable download for Linux, but I seem to understand there's no such a version for Linux ARM (aarch64).

Is that planned in the future?

thanks in advance

I have Version 140.8.0esr | Released February 24, 2026, for Linux Mint (up to date)

I have a CardDAV address book on a Nextcloud instance that i want to sync to Thunderbird.

When i open Address Book and the clikc on " Create a new address book" the Account Hub modal window opens. None of the 4 options (including Add Remote Address Book" do anything, i.e. I can click as much as I like but nothing happens.

I recieve several emails a day from a submission form on my website that contain what looks like Russian words. I would like to create a message filter to move these messages directy to the trash based on one or two characters that do not appear in the english language. I thought I had done it, but the filters don't appear to work.

Hello! No real issues or bugs to report, but I had some curiosities about independent audit documents. I appreciate the dedication to privacy and transparency, as I am sure many do; I've noticed that there are readily available audit documents for the Thunderbird Send and K-9 which is cool - are there any such audit documents for Thunderbird Desktop for Linux, or do the aforementioned documents sort of cover the same thing? If you could help me understand this (or perhaps point me to information or docs I missed), that would be appreciated!

Thanks for your time, --Mark

I'm a bit lost with the instructions http://mzl.la/1BsOG2o My thunderbird looks different I don't see a "Trust junk mail headers set by" option. What would be the proper way?

I deleted an old email address for a friend, but every time I email her, the auto-complete feature includes both the current email address and the one for her old job. I've deleted that one, and it doesn't seem to show up in the Address Book anywhere, so why does it keep coming up in the auto-complete?

It's annoying to me and to the place of employment to have the emails go to the wrong address when I'm not watching very carefully.

How can I make sure this doesn't happen again?

I am on Ubuntu 22.04.5 using Thunderbird 140.7.1esr (64-bit). After the latest update (from 128.12.0+build1-0ubuntu0.22.04.1) the notifications for mail has changed. Instead of just getting a notice, the notice now allows me to mark as read right within the notification (which is cool), but also now I am getting notifications when Junk mail comes in. Not a notification that it's junk, just that it is a new email.

I do *not* want these to automatically get marked as Read when they come in, as I do want to manually review them in case it's a mistake, and leaving them as unread in my Junk folder makes sense to me in order to make that easier. However, I do not want these notifications on each and every mail. If it's junk it should just silently classify it as such, like it used to. However, I cannot find a setting for this. is there a way to revert to the old behavior without rolling back to an earlier version of Thunderbird? Thanks!

Thunderbird somehow only syncs some events on some weekdays from one of my calendars. One event of two on tuesdays shows up, all events on mondays don't show up. These are similar events each week. It seems to be syncing all events from a different calendar on the same account from the same server.

I am running Fedora 42 KDE spin ("plasma"). The "Discover Software Center" app offers Thunderbird as both a regular and a flatpak install, and I somewhat arbitrarily chose flatpak.

I am dealing with several legacy email accounts that have 20 years of messages, so I need to control where the profile was created, so immediately after installing I ran with -P to create a profile and specified a path name of /lore/jeff/thunderbird. /lore is the mountpoint of /dev/sda2 and it is in my /etc/fstab. /lore/jeff previously existed because that's where I put my Dropbox folder.

Every time I shut down TB and restart it later it always fails because lock and .parentlock are never deleted. Until now, I just dealt with it by deleting the files in bash, but today I wanted to make sure that TB always starts offline and decided that user.js would be the absolute safest way to guarantee that, so I pulled up profiles.ini to get a list of all profile paths to make sure that I put a copy of user.js in each and every one whether it's in use or not. What I discovered is that the profile I created does NOT have a Path of /lore/jeff/thunderbird but instead /run/user/1000/doc/e1a4ab74/thunderbird and not only that but at the very bottom of the file are these three lines [InstallBD520B11F73A6B64] Default=/run/user/1000/doc/e1a4ab74/thunderbird Locked=1

The interesting thing is that when I put user.js into the /run/user... path and then looked at /lore/jeff/thunderbird to check on lock and .parentlock, I see that there is magically a copy of user.js there. I'm not exactly sure what is going on because when I do `ls -ldi` on the two files, their inode numbers are vastly different. I don't know enough about how flatpak operates internally, but my gut tells me it has something to do with it, and my question that I'm finally getting around to asking is if I edit the profiles.ini file to use /lore/jeff/thunderbird in an attempt to get TB to correctly clean up the lock files, is that going to cause a problem because of whatever flatpak is doing? And should I complain to flatpak about it?

Thanks for reading :-)

" attach the signature from a file instead "

I put the URL in there and it does not retain it and use it as signature image. It is a jpg. It browses in a URL on my browser and loads fine but T/B refuses to allow it.

Suggestions ?

Upgraded from `102.15.1` (deb) to `140.9.1esr` (flatpak).

Now for all my Imap folders the default action (double-click) is `Edit Draft` instead of `Open`. This is confirmed by right-clicking and having `Edit Draft Message` in bold at the top of the list.

How can I fix it?

- imported old profile with `⁝` -> `Tools` -> `Import`

- found https://support.mozilla.org/gl/questions/1364428 and tried the addon it recommended but none of the imap folders were flagged as draft.

In Thunderbird, the "Play a Sound" feature has quit. I changed from 'Use the following sound file' to 'Default system sound for new mail' and back again. That didn't work. I tried changing the file in 'Use the following sound file'. That didn't fix it. I restarted Thunderbird and it was the same. I don't want to uninstall and re-install. Is there a fix?

Migrei do Windows para o Linux recentemente e preciso das pastas de e-mails e contatos do Outlook. Como importar ou converter arquivos pst do Outlook para o Thunderbird? Grato.