Forum der Gemeinschaft Thunderbird

Hi,

I just cannot find any information on how Thunderbird designers see the Threads / Threading features to be used. How would I use it ? What are my (individual) choices for configuration ? etc.

The only info I can find is : [how to manage and turn on/off the feature].

...and of course lots unhappy user voices across the forums.

So: How would I use it ? What are my (individual) choices for configuration ? etc. Please link the respective Mozilla resource (blog, help, user design doc, ... whatever).

Ah, to start with, a description of how the feature is meant to behave, can be a start. (Sorry, I was just too stupid to find that)

Hello, I sent the message below last evening and someone named "Ed" replied. Thank you Ed. When I tried to "reply" to his/your question/email, I immediately got a bounced back email as "no-reply@support.mozilla.org" could not be found. Also, in my original question I said that I'm not "computer illiterate"; apparently I am as I don't know how to reply to his question. Please include info on how I can respond. So, I'll start all over by sending my original question:

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.

Greetings! I read everywhere that we must install the Lightning add-on to use the calendar feature in Thunderbird. But when I search for this add-on, I get a bazillion options, none of which appears Lightning. There is something called Lightning Calendar Tabs that keeps coming up. Is this it? Doesn't seem so.

Where can one download/install the Lightning add-on?

Thank you.

I established a new email address in my existing Thunderbird platform. It only configures an "Inbox" folder and a "Trash" folder. I can not add a "Sent" folder (or "Draft" or "Archives", etc.). I tried deleting the account and re-establishing it, but that did not work. I did notice that emails sent from the new account are being saved in my "Local" account folder's "Sent" folder.

I have also gone into "Account Settings" for the new email account to make sure the software was properly configured with where to store sent messages and drafts, but the setting reverst back to the "Local Folders," presumably because there is no "Sent" folder in the proper account.

Please Help!!!

Yesterday I upgraded my PC from Windows 10 to 11. Today I discovered my Local Folders are not visible. Searching tells me the messages still exist, but TB does not show the folders. I did the same upgrade a month ago on a laptop (Windows 10 Pro to 11), no problems. I didn't externally back up the messages as I am a dinosaur and don't know how, but at least they are still on the hard drive. Thousands of them though so I need the local folders back. Tried all the fixes I can find on the Community Forum, without success. Can anyone help please? Bob

anyone know how to recover my email contacts in latest version ot TB, theyve dissapeared since using spam aniallater , with is now uninstalled.

i have the same email acct on my other pc , could i recover everything from therte as its intact thanks

also my TB spam filters have now dissapeared [but still seem to be working] but filtering the wrong things. thanks if anyone can help

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

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

I am a M365 - leaver, and working several months now with Thunderbird/LibreOffice/Nextcloud. Sometimes I'm proud of what I learned and can do with the new software. Sometimes I'm a little lost in the woods.

I'm using the add-on Quicktext to insert default html text, like a template, in some of my my emails. One of the templates is a notification for my customers to inform them the invoice they received from me is not yet paid.

In the former software I was used to click in my template on a datepicker to insert the senddate of the invoice. I tried to insert a html-datepicker. This appears in the email, but is send to the reciever as a datepciker, not as the date I choose.

My question. Is there a way to insert a datepicker in a template like Quicktext, or is there a better add-on for this goal?

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 am really really distraught right now. It took me two weeks to get the time and focus to write a long reply to a company's nice email to me. Stayed up till 2am to write it. Deliberately wanted to re-read it in the morning before sending. Gone. Nowhere to be found. I pressed "Save to draft" before closing my laptop. But not saved. This account actually has a "draft" folder, unlike most of my other accounts in Thunderbird, which I also cannot figure out and no one has helped me with.

When sending an email using the keyboard shortcut, the settings tell me that I can set TB to give me a confirmation prompt. Why can't I get a confirmation prompt when using the Send button? Is there any way to make TB do that?

I set TB to run a spell check before sending, and that gives me an opportunity to cancel the Send operation. But it only works if the email contains a misspelling.

Thank you.

My e-mails are sorted from earliest (top) to the latest (bottom). Suddenly about 15 messages have gone out of order. Early ones have appeared towards the bottom (later ones, have appeared under those). Is there an easy way of moving them so they are all sequential?

Thanks

I have several email accounts of all types (IMAP, POP, etc.) managed by a single Thunderbird instance (v140.3.1esr 64-bit) running on Windows 11 (latest update).

A few weeks ago, I noticed that the 'Trash' folder on one of my IMAP accounts lost the 'Empty Trash' context menu item. Email I deleted still went to the 'Trash' folder, but I needed to delete them manually. 'Trash' folders on other accounts continued to work as expected.

This afternoon, I noticed that the deleted mails were no longer going to the 'Trash' folder. Looking this up online, I found the following old topic from 2023: https://support.mozilla.org/en-US/questions/1420657

However, the link cited within that post (https://support.mozilla.org/en-US/questions/1156586) no longer seems to exist and the details cited there no longer seems to be applicable as the interface and other details provided are no longer representative of the product today.

The elements of the post that seem applicable is a potential corruption of the 'Smart Mailboxes'. If I look at <ProfilePath>/Mail/smart mailboxes, I have several files associated with folders that may or may not be associated with the 'Trash' folder of the email account suffering from this problem. Given the date stamps, I'm not sure what they represent or even if they are involved in the currently running product.

Do note that I have been using this client for more going on 20 years.

Can you please provide updated troubleshooting steps and help me understand how I can map the folders under 'Mail' to the appropriate accounts to be sure I am not disturbing account email that is functioning properly.

Thanks in advance for the help,

AJ

I've never blocked images from loading (and I did check my settings and they haven't changed) but now many of my emails now have all images blocked just showing empty squares where the images should be. What happened?

When trying to add my outlook.com email account to Thunderbird 143.0.1, using the instructions at https://support.mozilla.org/en-US/kb/thunderbird-and-exchange, I get an "Exchange auth error." I'm able to add the account manually using imap, but I want to use Exchange so I can access my outlook.com calendar and contact when TB is updated to include them.