How Can I Distinguish Read and Unread Messages, When Both are Bold?

I'm trying to get Thunderbird working on Windows. I can't read thin faint Windows-style font rendering. I can set * {font-weight: bolder !important;} in userChrome.… (read more)

I'm trying to get Thunderbird working on Windows.

I can't read thin faint Windows-style font rendering. I can set * {font-weight: bolder !important;} in userChrome.css, but since Thunderbird relies on boldness to distinguish unread and read messages, I'd need to find another way to distinguish these.

I also use MacType, but it doesn't seem to affect Thunderbird or Firefox.

As far as I can see, either 1. if the css can distinguish unread and read messages, maybe I could set extrabold and semibold, or I could set different colors. Or 2. I could set a bolder font with good-enough script support.

Asked by MarjaE 27 minutit tagasi

Last reply by MarjaE 15 minutit tagasi

some of my email accounts quit working

bold textsome of my email won't send or receive and when i try to reinstall them they give error that it can't connect to the server i know the info is correct … (read more)

bold textsome of my email won't send or receive and when i try to reinstall them they give error that it can't connect to the server i know the info is correct

Asked by Kevin Roses 18 minutit tagasi

One account forgets certificate exception after reboot

Context: Windows 11 23H2, Thunderbird Portable (102.15.1, stubbornly declining updates until the Supernova IU starts looking tolerable), Avast Antivirus. Multiple email a… (read more)

Context: Windows 11 23H2, Thunderbird Portable (102.15.1, stubbornly declining updates until the Supernova IU starts looking tolerable), Avast Antivirus. Multiple email accounts on various servers, all POP3.

For the last several months (not sure when it started, but I first took a screenshot in October 2024, so perhaps that was the first time), after each time I reboot my PC, the first time I send an email using one particular account will trigger a complaint about a bad certificate, which is probably caused by Avast getting in the middle of the process. Clicking "View..." opens a tab with certificate information. I'm attaching screenshots.

I assume my other accounts also had a similar complaint when they were first used, but it has been a long time since I added a new account and they are all quiet now. But on this account, I get it the first time I send mail (normally a reply to someone else - this is not my default account for new messages) after each reboot. When I click "Confirm Security Exception" with the "Permanently store this exception" checkbox checked, the next thing I get is "Send Message Error" (see the third screenshot), then I click OK, and then I can hit "Send" again and the message is sent with no complaints. Then I can also send future messages with no complaints until the next time I reboot. (I don't reboot often - normally just when Windows needs to do an update.) This is the only account on Dreamhost (others are InMotion or Google), but other than that, there is nothing special about it, as far as I know. Why is it forgetting my "permanent" exception? Is there a setting somewhere that I should look for?

I just now tried following the instructions on this page: https://support.avast.com/en-us/article/troubleshoot-invalid-antivirus-email-certificate But it says, "This certificate is already installed as a certificate authority." Perhaps that is because I have already gone through the process for this reboot cycle, but if TB needs a new Avast certificate or exception each time I reboot (due to something changing in Avast, perhaps), I'd think the first email I send through any server would ask for the exception, but it's never any other account - just this one Dreamhost one. Fortunately it's just an inconvenience, not a showstopping problem, but it would be nice to solve it eventually.

Asked by OsakaWebbie 19 tundi tagasi

Last reply by OsakaWebbie 1 tund tagasi

Prevent Thunderbird from Removing Custom Headers on Send (e.g., X-Alias)

Hi everyone, I'm working on a privacy-focused email setup and ran into an issue with Thunderbird. Here's the situation: I use a catch-all email address for my domain, s… (read more)

Hi everyone,

I'm working on a privacy-focused email setup and ran into an issue with Thunderbird.

Here's the situation: I use a catch-all email address for my domain, so anything sent to *@mydomain.com gets forwarded to my real inbox at secret@mydomain.com. This allows me to use unique aliases like alias1@mydomain.com, alias2@mydomain.com, and so on, without revealing my actual email address.

That part works well.

The problem comes when I reply to messages. Thunderbird automatically sets the sender as secret@mydomain.com, even if the original message was sent to an alias. That defeats the purpose, since it exposes my real address to the recipient.

Thunderbird does let you set up additional identities, but maintaining one for every alias quickly becomes impractical if you use a lot of them.

I tried a workaround where my mail server adds a custom header like "X-Alias: alias1@mydomain.com" to incoming messages. The idea is that when I send a reply, the server could read that header and rewrite the From address accordingly, keeping the alias intact and hiding my real address.

Unfortunately, I found that Thunderbird strips out custom headers like X-Alias when sending emails, which breaks this solution.

So I have two main questions:

1. Is there any way to configure Thunderbird so it preserves specific custom headers (like X-Alias) when sending messages?

2. Alternatively, is there a better approach to replying from the alias address automatically, without exposing my real one, and without having to manually create identities for each alias?

I'd really appreciate any tips, suggestions, or insights. Thanks!

Asked by fisoc70290 2 tundi tagasi

Thunderbird is not saving messages where I want it to

Recently, Thunderbird is saving my sent messages to "Sent Messages" which is a folder that exists on my remote server. Up until this time, they were going to a folder cal… (read more)

Recently, Thunderbird is saving my sent messages to "Sent Messages" which is a folder that exists on my remote server. Up until this time, they were going to a folder called "Sent" which is where I want the messages to go.

I navigated to Account Settings and clicked on Copies & Folders and found the option for placing a copy in the "Sent" folder on my server. So, I chose that option, but messages are still being saved to "Sent Messages."

I have the latest version of Thunderbird that I am using on a Windows 11 laptop. I'm not sure what else I can tell you that will help.

Asked by julie35 2 tundi tagasi

Setting up Bulk Email

I like to setup a bulk email where it would make send. Is there way I can add all emails in the collection address without having to go to all of them. i attached the ad… (read more)

I like to setup a bulk email where it would make send. Is there way I can add all emails in the collection address without having to go to all of them.

i attached the address book. So when I open a new message. How can I ensure all collected address are grabbed to the BCC field?

Asked by Phil 5 tundi tagasi

Last reply by Phil 3 tundi tagasi

Transfer TB from two Win 7 Pro desktops to two Win 11 pro Laptops - Succeded 1/2

We been using Thunderbird for over 20 years and used MozBackup while it was supported and used it a few times when something got corrupted. To migrate from one PC to a … (read more)

We been using Thunderbird for over 20 years and used MozBackup while it was supported and used it a few times when something got corrupted. To migrate from one PC to a new PC, we always used the "manual method" described below. As our files are 10.2 GB (mine) and 6.4 GBMB(wife's) in size, that goes like this:

If your profile folder is larger than 2 GB, you need to use your file manager and create a backup copy of your profile folder yourself.

1. To find your profile folder, you can use the Open profile folder link in the first step of the Export tool. You will see the contents of your profile folder in your file manager. The profile folder has a name like abc12defg.default-release. 2. Select and copy the entire content (content only, not the folder) of your profile folder. 3. Create an empty folder where you want to keep your backup, e.g. on a USB flash drive. You can choose a helpful folder name like Thunderbird_profile_backup_2022-06-28. 4. Paste the contents of your profile folder into your empty target folder.

On the larger 10.2 GB filetransfer, after launching TB on the new machine there was a lot of the spinning circle icon appearing / disappearing ... then it just stopped, gave it some time. Rebooted and all was fine with the world. Most accounts were accessible, one was not and I copied that from the desktop open on the same desk.

With the 6.4 GB file transfer to wife's laptop, it did not work ... tried again, no luck.

Tried my 10.2 GB file on wife's laptop and it worked fine. Can't understand why, after each attempt TB was uninstalled and everything TB related was removed from roaming folder. System was rebooted, searched for anything TB related, rebooted, installed TB, closed it, copied folder contents into profile folder on laptop, Rebooted and no go.

It will take the 10.2 GB file but not the 6.4 ... I'm confused.

Asked by JackNaylorPE 6 tundi tagasi

Last reply by JackNaylorPE 4 tundi tagasi

Folder Properties / Synchronization...?

How is this supposed to work? I am hoping to have a couple of folders from my IMAP configured email account automatically synchronized to LOCAL FOLDERS. But under the 'Sy… (read more)

How is this supposed to work? I am hoping to have a couple of folders from my IMAP configured email account automatically synchronized to LOCAL FOLDERS. But under the 'Synchronization' tab there are not a lot of options, and really only a 'download' button. But does that really synchronize? prevent duplicates? Someone smarter than me, please advise? Thanks in advance John

Asked by john358 9 tundi tagasi

Last reply by john358 4 tundi tagasi

Calendar Font Size Change on Monthly Grid View

Is there a font setting to change JUST the font size (event title field) that is displayed on the TB Calendar monthly grid view. Was able to change overall size in TB, b… (read more)

Is there a font setting to change JUST the font size (event title field) that is displayed on the TB Calendar monthly grid view. Was able to change overall size in TB, but did not really want same change on mail views? Perhaps a specific TB setting (or userchrome command)?

Yes, I did see the question on Calendar Event font size changes, but not applicable to this as I read it...

Thanks for any suggestions, if any....

Asked by Brant Mercer 1 päev tagasi

Last reply by Brant Mercer 5 tundi tagasi

Reply header syntax: where is it described?

I have used the same reply header (set up using Config Editor, IIRC) for so many years that I have forgotten the syntax - which should not be a problem, except that I can… (read more)

I have used the same reply header (set up using Config Editor, IIRC) for so many years that I have forgotten the syntax - which should not be a problem, except that I cannot find it anywhere - certainly not in Help. Can someone direct me to the reply header syntax description?

Asked by John Kaufmann 5 tundi tagasi

Reading and sorting emails "Received" vs "Date"

If I receive and save emails as a .eml file and open in a text editor, I can see there is a "received" day and time and then further down I see a "date" day and time. Th… (read more)

If I receive and save emails as a .eml file and open in a text editor, I can see there is a "received" day and time and then further down I see a "date" day and time. Thunderbird seems to default to the "date" day and time when the email shows in the message list whereas other email clients use the "received" day and time.

As an example, a large group email written/sent at 10:06 am today - the "date" field is 10:06. The "received field" shows 11:39 am. In this example, the original writer did send at 10:06 but it did not arrive in my inbox until 11:39. Thunderbird shows/sorts the email to 10:06. Other email apps like Gmail, Outlook and Ipads mail app all show/sort the email as 11:39.

I've tried sorting Thunderbird by Date and by Received but the order stays the same regardless.

This issue isn't always noticeable because in most cases, the "Date" and "Received" are within a few seconds of each other.

I can appreciate Thunderbird lists sorting by Date and Received, but it seems like its not working correctly.

TB 140 on Win 10 and 11, and TB for Android - same on all apps.

Asked by Brian B 5 tundi tagasi

Policies.json: "PostMessage" signature fails on Thunderbird 140 ESR, but other policies work

Hello, I'm trying to deploy a dynamic HTML signature on Thunderbird 140 ESR using policies.json. The goal is to pull user data (full name, job title, phone number) from o… (read more)

Hello, I'm trying to deploy a dynamic HTML signature on Thunderbird 140 ESR using policies.json. The goal is to pull user data (full name, job title, phone number) from our Active Directory.

The PostMessage policy for setting the signature is completely ignored. However, other policies like DisableAppUpdate work perfectly, so I know policies.json is being read correctly.

Troubleshooting has confirmed this is not a path or permission issue, as the signature also fails when using a local file (file:///C:/...) and even when the signature is set as direct text inside the policy itself.

Is this a known bug or issue in v140 ESR? Is there a reliable method to deploy a dynamic signature from AD via policy?

Thank you.

Asked by Veri Tax 6 tundi tagasi

140.0.0.1 Inbox "Cascading" effect

Hi Folks - This is a silly question, I'm sure and if there's something in Settings I'm missing, my apologies! But, with the new version, when I leave my Inbox - whether … (read more)

Hi Folks - This is a silly question, I'm sure and if there's something in Settings I'm missing, my apologies!

But, with the new version, when I leave my Inbox - whether it's to write an email or read one that has been sent to me - and I return, the Inbox is very briefly empty, then all of the emails in the Inbox show up in a, for lack of a better term, cascading effect.

Everything's working fine - but seeing this every single time is a bit disconcerting. Help?

Asked by bobrtf 1 päev tagasi

Last reply by bobrtf 6 tundi tagasi

Senders’ certificates no longer imported?

Hello! I just observed a new issue with S/MIME. When trying to send an encrypted mail to somebody new, I get an error “End-to-end encryption requires resolving certifica… (read more)

Hello!

I just observed a new issue with S/MIME. When trying to send an encrypted mail to somebody new, I get an error “End-to-end encryption requires resolving certificate issues with somebody@example.com”.

The message is not very helpful, and doesn’t propose any solution. So a web search gave me this article: Prerequisite for sending an encrypted email message. It states:

> If Thunderbird considers the email's signature and the sender's certificate valid, it will automatically be imported and available when you attempt to encrypt an email to that correspondent using the S/MIME technology.

When I open the sender’s mail, the signature is confirmed as valid by Thunderbird.

Ignoring the warning message and trying to send the encrypted mail results in the following error in the log: `mailnews.send: NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIMsgComposeSecure.beginCryptoEncapsulation]`

So, I verified in my list of certificates for people, and that new person didn’t figure in the list. Other people did, the last one from 6 June.

Is it possible there’s a bug causing TB to not import the certificate when I open the mail? What would a workaround be? Is there a way to import a sender’s certificate manually from their signed mail?

Asked by Andy 4 päeva tagasi

Last reply by Andy 7 tundi tagasi

Archive button not responsive sometimes but not after restarting

Since the Thunderbird 140.0.1esr release, my Archive button is randomly not working. With a message selected that I want to archive, either clicking on the Archive Button… (read more)

Since the Thunderbird 140.0.1esr release, my Archive button is randomly not working. With a message selected that I want to archive, either clicking on the Archive Button on the message or in the list view right-clicking and selecting the Archive button from the options menu does not result in anything. It appears that the button is depressed, but nothing happens. If I close out of Thunderbird and immediately restart it, the Archive button starts working again for a time until later when it stops functioning again. I never had this problem with previous instances of Thunderbird before, so I'm wondering if something became broken with this latest release. I'm happy to provide additional information if needed to help troubleshoot why this is going on. I'm running Windows 11 24H2 64bit and am not having issues with any other button in Thunderbird not working. Just Archive. Have also tried it on multiple email accounts. Same problem with all of them when the button is not working.

Asked by Rob Bennett 8 tundi tagasi

Manually sort the order of folders

My inbox was inadvertently moved down in the list of folders and I am not able to drag and drop it back to the top. It looks like there used to be a "Manually sort folder… (read more)

My inbox was inadvertently moved down in the list of folders and I am not able to drag and drop it back to the top. It looks like there used to be a "Manually sort folders" extension but it no longer works. Is there a way to reorder folders manually? I use 140.0.1esr (64-bit).

Asked by wacohen 9 tundi tagasi

Email & Accounts missing All are IMAP what bug is there in Thunderbird

All our emails are on IMAP so should keep a copy on the server like outlook which does. Yet today all our emails for all email addresses are missing. We have had our serv… (read more)

All our emails are on IMAP so should keep a copy on the server like outlook which does. Yet today all our emails for all email addresses are missing. We have had our server people go back and restore emails back to the 15th when we know they were there, but they are still missing. In the accounts email there were over 120 emails now all gone. Can you help with a solution as to why thunderbird has done this. Its weird email accounts for emails back and forth to say surecalltelecoms are still there, but all emails for ours marketbowl.in have gone missing.

We asked the server provider and they checked the datacentre, no fault logs, no errors so for some reason its thunderbird. All settings are correct same as surecall, yet all emails are missing for ours.

Asked by chrisdevelop1 9 tundi tagasi

everything going to trash [was: again i am crying here

why is everything going to trash in thunderer but not in Comcast.net email what do i do o i eed to reinstall it and uninstall it can not do restore point … (read more)

why is everything going to trash in thunderer but not in Comcast.net email what do i do o i eed to reinstall it and uninstall it

can not  do restore point

Asked by Mary 3 nädalat tagasi

Last reply by Mary 10 tundi tagasi

Backup oltre 2 GB

Ho effettuato un backup con la procedura guidata ma il file è più grande di 2Gb. Ha creato il file zip ma quando provo a dezipparlo per importare le cartelle dice che pot… (read more)

Ho effettuato un backup con la procedura guidata ma il file è più grande di 2Gb. Ha creato il file zip ma quando provo a dezipparlo per importare le cartelle dice che potrebbe essere corrotto. C'è un modo per recuperare il profilo? Grazie

Asked by angeluzzi.consuelo 1 päev tagasi

Last reply by angeluzzi.consuelo 10 tundi tagasi