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I have some address books with a lot of names. I used to be able to open the Contact sidebar, then click within an address book, type a letter, and it would take me to the first entry in the address book beginning with that name. For example, if clicked within the address book list of names, and typed "B" it would take me to "Baker" if Baker was the first name in the address book beginning with a "B" It will no longer do that. Now, I have to scroll through all of the "A" names until I get to the "B" names. How can I enable that again? I'm using Windows 11. This has worked the same way for years and years and now has stopped. Help!

I love Mozilla Thunderbird and after years away came back and still love it over Outlook. However, I do use iOS and was disappointed to see no version. Yes, I have donated and wondered, what would it take to have a seperate donation option to allow funding towards an iOS version, not just Android? I would rather help donate towards getting that done than have to use outlook on my iOS device and Thunderbird everywhere else. Would the developers and community get behind this? If everyone interested could donate even only $5 a month for a set time (maybe 12 months) to see it happen, I would jump on board. What is the possibility of somehow making this happen. Hopefully enough iOS users getting on board would make this viable.

Can we make this a 2025 goal for all iOS users?

I usually run Thunderbird in a sized window to manage my screen real estate, using the classic layout and showing four messages in the folder pane. The problem is that when I maximize the Thunderbird window, the message pane stays at the height I set for the smaller size window. Is there a way to make the size of the message pane be a percentage of the available space, or at least lock the height of the message pane to the height I set for the folder pane?

For many months I had this working. "sendto" used my selected Thunderbird account to send the email. After resetting my windows 11 system I lost the settings to make it work. The emails go to Outlook now. I have followed all the instructions I can find online but cannot fix the problem. For example, I out a link to Thunderbird in the sendto folder. If I click on that, Thunderbird's main screen opens instead of the email dialog.

Following a switch off and restart triggered I think by a Windows update, Thunderbird is not displaying any messages in my Inbox, though it is showing the number of messages in the Inbox title bar. 'Drafts' and 'Sent' all display correctly, but the 'Inbox' is blank with a grey icon of an envelope and the statement: "No message found". I am an IT novice. I looked on the 'help' pages. I have checked that no filters are set. I have right-clicked on the 'Inbox' title to display the menu with 'properties' at the bottom. I have clicked on that to bring up the dialog box with the "Repair" icon. It shows 'Inbox' in the 'Name' box but I note that the 'Location' box is blank. Presumably it should not be. Presumably it should show either the location of locally stored messages on my hard drive, or the location of the messages on the email server. I am not sure which. I have found the directory on my hard drive where I believe the messages are stored locally. The size of the file suggests to me that they are all there. The periodic 'Checking for new messages' is happening, but nothing is displaying, though a check via webmail shows that new messages are arriving on the server. What should I do to get my Inbox to display correctly? With many thanks, Iain

I have followed the directions in document: https://support.mozilla.org/en-US/kb/hyperlinks-in-messages-not-working#w_problems-with-received-or-saved-mails

As of this morning, links in emails across accounts in Thunderbird do not open in a browser on my system. I can right click/copy and paste into a browser, but the linking between apps seems to be broken.

I have followed the document above, tried different default browsers, and restarted Thunderbird numerous times. I have also started Thunderbird in troubleshooting mode (hold shift at start) with no change in behavior.

No system config changes last night leading up to this new behavior.

Please advise.

Windows 11 23H2 Version 10.0.22631 Build 22631 Thunderbird 128.7.1esr (64-bit)

Suddenly this morning, I can't send an email through Thunderbird, but I can through my email service provider's platform. No settings have been changed and I have the most up to date version.

I get this message:

"Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) (my account) failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again."

I am not at all tech savvy with this type of thing, so I need step by step, easy instructions, please. Thank you!

Great to see the Android version of Thunderbird.

Is there a way to set the default color for writing emails to a different color than black?

Thanks.

Jeffrey

(Only just started with Thunderbird - I can get no sensible answers from MS about New Outlook being made fit to use. T'bird was amazingly easy to set up.)

I've got email running fine, but is it possible to open a reading pane to review new emails before opening them, please? It'd be useful to identify scammers without opening an item. GMail doesn't have a reading pane, but Classic Outlook does.

Best wishes Andy Banks

I am trying to whitelist a domain name. TB won't let me do that. This company has a plethora of emails. I don't want to whitelist every single one of them. That would take me days. It is impractical. I want to whitelist the domain name which is concentrix.com. I want to ensure that all emails coming from that domain name land on the inbox folder. How can I do that on TB?

New Computer--4 days old Have downloaded Thunderbird (twice, the latest version from Moz website) Thunderbird crashes whenever I leave the computer long enough for it to go into sleep mode Crash reason: EXCEPTION_ACCESS_VIOLATION_READ Troubleshooting gives no answers Now running in Troubleshoot Mode having disabled add ons (none, I believe) Not much running on new computer yet--Avast, DuckDuckGo [I had a browser crash & needed to reload it on day 2 of machine's life (DuckDuck)...which might mean it is a machine issue rather than Thunderbird?...] Help! bp-4f000aa4-9396-4686-9338-49b190250203

Thunderbird Android v8.2 / Pixel 6a / Android 15 (Feb 2025 security update)

IMAP Push in use for Inboxes only on 3 mail accounts (2 Comcast; 1 Gmail)

  - Enable Push: "on"
  - Enable sync: "off" (for Inboxes; on for all other mail folders)

Installed TB in November 2024 and experienced no problems until recently. Beginning in early February 2025, inbox push/update stops working every ~24 hours. If I go to Android settings and force stop TB, clear cache, then restart TB, Inboxes immediately sync with servers and again function fine for approximately 24 hours (not exactly).

Using TB for 3 e-mail accounts. Only the 3 Inboxes have push enabled (and sync disabled). All other mail folders on each account set to sync every 60 minutes. This configuration was set up on initial installation and worked without issue until recently. The only system modification made in this timeframe was installing the February 2025 Android security update.

Anyone else experiencing similar issues? Any suggestions?

Thank you.

Re: Thunderbird 128.7.0esr (64-bit) under Windows 10

Unread incoming messages are indicated by a little red dot within the Thunderbird logo icon in the Windows notification area. When operating with a Unified Inbox, opening those messages in the Unified folder does not always clear the red dot, nor does the unread message counter in the left pane always decrement properly. What it seems to take to reset things when this happens is to expand the Inbox tree and simply click on the account name associated with the unread message. Anyone else see this?

After installing the Windows Thunderbid update, it downloads a gmail message about one per hour. Please help what could be the cause. Windows 10, wersja 21H2 i 22H2 64 Thunderbird 128.7.1esr (32 bity)

In my TB128.7.0esr I have a Profile with several IMAP-accounts all residing on the same IMAP-server.

For ONE of the accounts, when I do a move (drag-and-drop) of an eMail from A to B (ex: from Inbox to Folder or from folder to Inbox or .....) - in Thunderbird the eMail becomes available in the target, and is removed from the source - on the Server directories the eMail stays in the source and is as well in the target and this until I do a compact or until I close Thunderbird

For OTHER accounts everything happens immediately !

I couldn't find any setting that might imply this kind of behaviour

And yes, I checked, the icon during the drag-and-drop, it doesn't have the +sign on it, so it's NOT a copy

Any ideas what might be going on ?

Hi,

I've searched this problem a number of times and not come up with a solution. I've been a Thunderbird user for decades and this is a new problem to me.

I have 3 email accounts in Thunderbird. One of the three is very old and has dozens of subfolders with old message storage. The other two have one or two subfolders at the most. All 3 accounts seem to have this same problem.

Ninety % of the time all messages download and appear in their inboxes just fine. But sometimes I'll get downloading X-number of messages in the bottom left corner of Thunderbird but nothing shows up in any of the inboxes. I check all TRASH and JUNK folders and they are all empty (I used EMPTY TRASH ON EXIT as a setting in all accounts to empty the TRASH folder).

If I go to the online servers for these three accounts no messages show up there that haven't already been downloaded to my inbox and seen by me. So it would appear there actually were no new messages to download even though Thunderbird indicated there were.

A few weeks ago I searched out and found instructions for using the REPAIR FOLDER feature and ran that on the inboxes. On one account 3 old messages I don't think I'd seen did indeed appear. But use of the REPAIR FOLDER feature since then has had no effect at all.

I use JUNK settings but rarely see anything show up in my JUNK boxes. Perhaps that's a clue?

Can anyone enlighten me on what is happening?

Thanks, BH

Good afternoon.

There is an IMAP mailbox with a huge array of emails and folders, and a large number of configured filters. The emails that were sent did not open correctly, i.e. we see one header, but a completely different email opens, this is not the case with all emails, selectively. This also happens sometimes in previously received emails, and it also happens that the counter for new unread emails in some folders does not display until you enter this folder. The problem is only when working through the Thunderbird client, it has been going on for more than a year, the client has also been updated many times. This problem is reproduced on other PCs when we are log in this user account . There are no similar problems in the browser. Please help.

I would like to be able to have a custom software program create a text email in a subdirectory where Thunderbird would pick it up and email it out. Is this possible with Thunderbird?