Thunderbird Community Forum

hello the flatpak update command tells me that the runtime is eol and its used by the flatpak thunderbird. can you please update the runtime soon? i add a screenshot of the issue, its in german. please review this as fast as you can please greetings oski

I have a backup.bak file.

My computer was re-set and I lost everything.

How can I restore my new downloaded Thunderbird, using this backup.bak file.

Thanks.

Rik

Recently Thunderbird was upgraded on my main PC, and suddenly the 'new mail' icon in top left was gone, I hav looked under various settings, and can't seem to get it visible.. I know that 'ctrl+n' is useable, my version here is 143.0.1 .. strange on my secondary PC Thunderbird version is 141.0 and there icon is still visible.

Thunderbird is running (apparently properly) on both my (old) HP laptop, and on my (new) Samsung laptop. But the Thunderbird address book on the Samsung only shows the email addresses associated with emails that have been sent or received since I installed Thunderbird on the Samsung. It does not include the rest of my address book. Similarly, it only contains the emails that have been sent or received since I installed Thunderbird on the Samsung. When I follow the instructions to open the (Thunderbird) profile folder, I get a message that says “C:\Users\User\AppData\Roaming\Thunderbird\Profiles\fbclykvb.default-esr is unavailable.”

With help from Currys (where I had bought the Samsung), we were able to copy the (ApsData) Thunderbird folder from the (old) HP laptop to the (new) Samsung) laptop. (They also ran something called mailmerge, but I didn’t follow the precise details.) I can now find the Thuderbird folder in the AppData/Roaming folder. In the Profiles, there are 2 subfolders, hw7ms2fs.default-release and w1a31rjn.default. w1a31rjn.default has only one file – times.json hw7ms2fs.default-release has lots of subfolders and files, but no file named fbclykvb.default-esr. Thunderbird is still working properly on the Samsung, but I still can not access my larger address book, or emails that were receive or sent by Thunderbird on the HP. How do I fix it? The people at Currys tried to help, but they don’t know much about Thunderbird, and said I needed to get support from Mozilla.

In Thunderbird 143.0.1 (64-bit), my appointment invitations are no longer sent automatically to the respective email recipients, as they used to be. I can't find any settings where I can change this. Under ‘Troubleshooting Information’ in the line ‘Send appointment notifications via email’, the value is not set to ‘true’. I look forward to your help. Best regards, Thorsten

Being in a rush after a botched TB update from v120 to 140.0esr, and missing disk backups, I reinstalled v102 and recreated two of my four email provider accounts in TB 102. Now. I'd like to try the update again this way: 1. export the few messages downloaded to the reinstalled v102 2. Completely delete v102 and any traces of TB on my C: disk (Program Files folder, user account folders, registry...) 3. Install the latest version (143 as I write this) 4. Copy and set as default (or import?) a two-weeks old disk backup of the old TB v102 profile into v143 without anything missing:

   - Four email accounts
   - All the messages in all the mailbox folders (received, sent, drafts, etc.) of these accounts
   - The complete archives folders structure and content
   - All the other folders I created as direct children of the email accounts in the TB "Folders" outline and their contents
   - one RSS feeds account and its settings
   - ~40 RSS feeds subscriptions and their settings

5. Import the recent messages from step 1 into the corresponding TB accounts.

Is that the correct way to do this?

I'm wondering about a few things:

   - Best email export format for later import?
   - Will the restored email accounts automagically reconnect to the provider accounts? I may have changed the format of one of them from Imap to pop3, and the server handled it very well, but it would be Imap again in TB after restoring the disk backup...
   - Why is v140 the only one with ESR in its name and not the following ones? I was on ESR when I froze 102 and blocked updates)
   - Is the Sqlite DB part ot the TB account file structure, and is it carried over when moving or duplicating that account?
   - Has the TB account folder and/or the Sqlite DB changed format between v102 and v143?

P.S. the email account for this post is among the inactive ones at the moment!

Hallo, bei mir kommt immer wieder das angehängte pop-up. Wie kann ich die Abfrage dauerhaft entfernen. Ich hatte mal ocloud aber schon lange nicht mehr also wird das nicht gebraucht Bitte um Hilfe

LG Manfred

When an email that is received from a sender that has previously been marked as spam then Thunderbird activates the "beep" notification. When I tab to Thunderbird to see the email by then it has already been moved by Thunderbird to the Junk folder. This is quite frustrating as it unnecessarily interrupts workflow just to see that it was junk.

I would like it not to notify on messages that go to the Junk folder. Is there some way I can get this to work.

I’m using the Windows 11 version of the Thunderbird app, but when I try to add my Outlook account and enter my password, it shows “Authentication failed. Please check your username and password,” and I can’t complete the Outlook setup. I’ve tried changing my Microsoft account password and entering an app password, but neither worked.

I am looking to archive old folders from mail addresses that I don't use anymore, but don't want to delete the folders. And once those are gone- I would like the rearrange the order of the folders. This second one seems like it should be easy but I am having trouble finding how to do that. Thank you

Hello, Attached are the messages I have been receiving ever since 6 October 2025. I've tried to read about fixing these myself, to no avail. (I mean, I can Read; I just can't fix this.) I've tried to Compact ALL folders individually. But that seemed to do nothing. (Before 6 October, the Thunderbird window would at least "flicker" a little after compact.) Trash is empty. Tried disabling McAfee AntiVirus & Firewall. And, no, this isn't happening because I'm using McAfee; I've been using McAfee since Windows XP and Thunderbird since before it "broke away" from Mozilla. They have, until 6 October, played nice together. I really like Thunderbird so I do not want to find another email client/program/what-have-you. There are LOTS of saved emails that I cannot move/copy to "save space", so...Help? Please?

Thanking you in advance, tonyg

P.S.-I am not computer illiterate. But, slow, easy to follow, non-BIOS changing, step by step directions would be preferred.