Thunderbird Community Forum

I’m having some issues with Thunderbird. It’s running really slowly and making my whole computer lag. Thunderbird consumes constantly 8-9% CPU while it’s on. I’m using Windows 11 and Thunderbird version 128.4.3.esr (64-bit) on a laptop with fast NVMe drives.

I’ve added 8 email accounts, and the mail folder (Roaming/Thunderbird) is about 165 GB right now. I think it’ll go over 200 GB once all the messages finish downloading.

The problem seems to be with message indexing. The Activity Manager shows it’s indexing over 300k messages. Even if I leave Thunderbird running all night, it doesn’t finish. When I get new emails in the morning, the indexing starts all over again. It takes hours and uses a lot of CPU while it’s happening.

If I disable the "Enable Global Search and Indexer" option, Thunderbird works fast and smooth, and CPU usage drops a lot. But, I assume, this means I lose the ability to search emails.

When the lagging happens, opening an email preview can take up to 3 seconds (!), and deleting a message also takes 2-3 seconds. However, when I disable the "Enable Global Search and Indexer" option, Thunderbird works ultra-fast. Opening and deleting messages is instant, and there’s no delay.

Any idea how to fix this?

Please excuse my wording as I don't know all the correct terminology. I have several email addresses with our current local phone company with our landline/internet package. Since the internet service is so poor, I would like to discontinue this internet service and go with something like Comcast. Once we cancel our internet service with our local phone company, we can no longer use those emails addresses (name@embarqmail.com).

I'm trying to find the best provider that supports POP3 protocol as that works best for our household. And I'll need to set those email addresses up BEFORE I cancel with our local company. Can I set up emails with Thunderbird (name@thunderbird.com) or should I go with something like Gmail or Outlook or Yahoo? Trying to find the best solution so we don't have to do this again if we change internet providers.

I already do have one Gmail account and it says it supports POP3 protocol - but it doesn't always work - sometimes I get an email on my phone that doesn't come through on my desktop computer - and you have to type Recent: while setting up the account.

Any help would be greatly appreciated! Thank you!

When I startup Thunderbird, it sometakes takes up to one minute.

I read on this forum that it maybe due to the linkes MacOS AdressBook. How can I "unlink" it?

Any other clues?

ANTIVIRUS turned off.

Hi,

Since my thunderbird updated two weeks ago I am unable to open attachments properly. They seem to open as a web page not displaying all the information. Also my emails are in large font and not displaying co9rrectly. The interface is also a lot smaller in general.

Can anyone help please to restore to normal settings.

Thanks

Is it possible to initiate the same process that discovers the server setting when you add an email account in an already existing email account to avoid making changes in the account manually??

I have just opened Thunderbird email software, which I have had for years. A new version has been installed, as instructed, but ALL my email address files have been wiped. How can I recover all those email addresses please? Please respond to my main email address as follows:

shawphilip7@aol.com

When I was cleaning up mails in Thunderbird I noted that the Inbox under Local Folders is presented as containing zero messages, but the Inbox file under <my profile>/Mail/Local Folders contains roughly 400 MB of data. A quick look (via awk) tells me the messages already exist in other folders or are those that I have cleaned out.

A bit of background: I have for years downloaded (POP3) mail locally and and stored in my own folders under Local Folders. Message filters are set up to move each received mail to one of three folders. Nothing is supposed to end up in the default Inbox.

Any ideas of how to best reduce the size of the Inbox file?

 /Lars

Добрый день. Не приходят оповещения о новых сообщениях во вложенной папке. По письмам, которые попадают в папку входящие, оповещения приходят, а в созданную папку с настройками сортировки оповещения отсутствуют

I have 5 accounts registered with FIREFOX (which I will call A, B, C, D and F). The one I am registered with is A. Every new page I open, it opens with account B but I would like it to open on C by default. How can this be done without changing account B to C each time?

bonjour désirant supprimer automatiquement les messages de plus de deux jours dans le dossier spam de TB, la procédure "règle de conservation" dans les propriétés du dossier ne fonctionne pas, y a t il autre chose à paramétrer ? ou un module complémentaire ?

merci de votre aide

I've updated my MacBook from MacOS 14 to 15.1.1 and it seems various add-ons are not working in Thunderbird including CardBook and Mail Merge. Others like XNote++ and Send Later do seem to be working. I've checked for updates to the add-ons. I'll get in touch with their developers as well. Has anyone else experienced this?

When creating a new event in calendar, the event organizer always shows the same incorrect email address. The calendar settings have the correct email but this is ignored. Create a new event and then invite attendees; the event organizer always has the same email address regardless of which calendar I am adding the event to. The incorrect email address that is shown is an old one that I do not use anymore.

My calendar syncs with a nextcloud calendar. It seems that TB is getting the email address used for password recovery and notifications and using for the meeting organizer. The email address set in the calendar properties in Nextcloud seems to be ignored.

Is this a bug, is there any chance to fix it?

Many moons ago I used Microsoft's Outlook as my email program. When I would open Outlook, it would retrieve all of my emails from my ISP's server, permanently removing the emails from the server while downloading them into Outlook.

When I installed Thunderbird recently, it was to do the same thing. My ISP had sent me several notices that my email account was close to full, so I was looking for an email program that worked the same way Outlook does, and removes my emails from my ISP's email server as it downloads them to my PC.

The first issue I'm having is that Thunderbird does not appear to do this? Or do I simply have my Thunderbird account/settings set up incorrectly?

My next issue is directly tied to the first one. Every time I open Thunderbird it starts re-downloading all of the emails that it has previously already copied into my Thunderbird Inbox, but that are still in my email account on my ISP's email server. This is probably 15 years worth of emails and equates to thousands of emails I'm saving, and every time I open Thunderbird it starts re-downloading them again. I simply want to be able to save them to my local email client (Thunderbird) and store them on my PC's hard drive.

The final issue is also tied to the first two: As soon as it starts downloading the emails again, Thunderbird (and only Thunderbird) lags heavily and almost continuously. It lags so badly that it becomes incredibly difficult to write a new email in Thunderbird, and so I end up closing the program and logging into my ISP's email server and using their client to write my emails, or conducting my email business via my phone, which takes longer and is more challenging due to continuous fat-fingering of the phones tiny little keyboard.

So, am I missing something, or do I have some settings in Thunderbird set up incorrectly? Or does Thunderbird simply not work the same way Outlook does (or at least use to)?

Thanks in advance for any help or advice anyone is willing to give.

~ Doug

Hello, I downloaded Thunderbird in order to clean up storage on gmail account. Mainly, I wanted to delete files but keep the messages, a feature I thought Thunderbird provides. I deleted the files but they still appear on my gmail account and space size hasn't changed. I double checked the settings on both Thunderbird and gmail, as well as read and followed posts here, but it still doesn't work. I'm wondering whether I'm missing something... Any idea?

I'm finding threads that include the correct emails for the subject, but also additional emails that do NOT relate to the original subject. How do I pull the other "subjects" from being in the wrong thread and create their own thread. See the highlighted emails in the attached image. Each color represents a separate thread that should stand on its own.

Thanks.

The spam people say to "limit outbound port 25 to mail servers". I have a profile listed on the webpage called "Outgoing Server SMTP Settings" from long ago .... This is the one (I have a few profiles) that is designed (Default)

Server: shawmail.vc.shawcable.net Port: 25 (default 587) Connection security - none

All my other profiles use: Server: smtp.shaw.ca Port: 587 (default 587) Security: STARTTLS

Q: Might this be the problem? Can I simply delete this profile - even if it is the designed 'Default'.