I think Thunderbird had a recent update because all of my folders are a jumbled mess.

I have no idea what happened to my Thunderbird. I think it might have been an update, because all of my folders are not where they were, everything in the folders are sor… (read more)

I have no idea what happened to my Thunderbird. I think it might have been an update, because all of my folders are not where they were, everything in the folders are sorted by groups like today, or older. I noticed a bunch of my emails are now in folders marked as a Userfolder#. The emails it contains are those that normally should be in a properly named folder, only those named folders are grayed out. Another issue is that when i try to open an email, it opens it as if I want to reply to it. If I just want to read the email, I have to right click on the email and select open to read it. I have 2 spam folders, no idea why, nothing saves to my draft folder I found out today, I just dont know what happened! I dont think I did anything but I dont know now, as Im beginning to doubt myself. It's been this way for a few days.

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Why won't Thunderbird download incoming emails?

I keep getting the following error when trying to download emails from yahoo.mail: Authentication failure while connecting to server pop.mail.yahoo.com Have hundreds of… (read more)

I keep getting the following error when trying to download emails from yahoo.mail: Authentication failure while connecting to server pop.mail.yahoo.com Have hundreds of emails sitting in yahoo.mail that I need to load onto my desktop. Any help is appreciated!

Open 3 50

Thunderbird won't send emails between 2 AOL accounts

Hi I have just set up AOL accounts for 3 email addresses on Thunderbird. I have set them up as pop accounts and each account can receive emails and send emails ok but the… (read more)

Hi I have just set up AOL accounts for 3 email addresses on Thunderbird. I have set them up as pop accounts and each account can receive emails and send emails ok but the really strange thing is they won't send from one AOL email address to another AOL email address which is something we quite often do as as family. All have pop.aol.com and port 995 along with smtp.aol.com and port 465. Hopefully someone will know what is going on.

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I can't send emails

Greenby Support wants a screenshot of Thunderbird Outgoing Server (SMTP) which I can't find via the App menu or any other means of searching. So I do not know which vers… (read more)

Greenby Support wants a screenshot of Thunderbird Outgoing Server (SMTP) which I can't find via the App menu or any other means of searching. So I do not know which version we have re your question below and I have chosen one shown at random to allow me to submit my question

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I can not create a new email account

I can not create a new email account for the email : info@ecomtehpro.ro. I have already an email account: office@ecomtehpro.ro. Please give me a solution to create the n… (read more)

I can not create a new email account for the email : info@ecomtehpro.ro. I have already an email account: office@ecomtehpro.ro. Please give me a solution to create the new email account. Thank you.

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Setting a default font for outgoing emails

I've been using Thunderbird version 155.0 with only a few issues (reported in other posts). To investigate one of the issues I've had to create a new profile for testing.… (read more)

I've been using Thunderbird version 155.0 with only a few issues (reported in other posts).

To investigate one of the issues I've had to create a new profile for testing. I've managed to set everything up except for my default font for outgoing emails. If I send an email with say, four lines of text, I can format each line to be a different font and the received email reflects the different fonts for each line.

But Thunderbird isn't remembering the last selected font. So if I send a second email (without re-selecting any font) the recipient receives it in some naff mono-spaced font. I guess there's somewhere where I can set up the default font for my outgoing emails but I haven't managed to find it yet. Can anyone help?

Open 7 1

Thunderbird is downloading new messages but failing to display them

Thunderbird is downloading new messages but failing to display them. Other functionality remains active, ie I can see and open messages, delete all the contents of folde… (read more)

Thunderbird is downloading new messages but failing to display them.

Other functionality remains active, ie I can see and open messages, delete all the contents of folders, compose and send messages, but when the software downloads new messages they simply do not display and cannot be accessed.

Not sure if it's relevant, but the message INBOX count appears to be stuck at the number 59, although more messages than that have been downloaded.

Bizarrely this is the message displayed whenever I now open the Thunderbird application (it was there when the problem first appeared and returns everytime). Out of desperation I even made a donation in the hope it would release the messages!

Thank you in advance, Steve Davidson

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Comcast / xfinity oauth site requesting that I enter my Comcast password. Wild Windows 11 Behavior

I have had Thunderbird on my Mac Monterey synced to my Comcast email address with no problems. Usually I have to enter my Comcast password when I send the first message … (read more)

I have had Thunderbird on my Mac Monterey synced to my Comcast email address with no problems. Usually I have to enter my Comcast password when I send the first message for the day. It has caused no real problems since I obtained this computer, probably sometime in 2021. Within 2023 I obtained a Windows 10, onto which I also put Thunderbird. Last November I upgraded to Windows 11 had kept Thunderbird. I did not do the upgrade myself. The technician used Google Drive and OneDrive for backup. I added a GMAIL address on that system to my Thunderbird installation on Windows 11.

For the past week Thunderbird has been popping up a Comcast site requesting that I enter my Comcast password. This is bizarre! How can I get my Thunderbird to behave more normally on my Windows 11? Thanks in advance. The technician only did the upgrade. I did the subsequent program reinstallations.

Open 5 49

the mail is not coming and thunderbird is very slow

We are facing issues with Thunderbird mail application. Incoming emails are not being received in Thunderbird. Thunderbird is running very slowly and frequently becomes u… (read more)

We are facing issues with Thunderbird mail application.

Incoming emails are not being received in Thunderbird. Thunderbird is running very slowly and frequently becomes unresponsive. Sending and receiving emails is taking a long time. We have already restarted the application and system, but the issue still persists.

Kindly check the mail server settings and Thunderbird configuration from your end and advise on the necessary action to resolve this issue as soon as possible.

Your prompt support will be highly appreciated.

Open 4 30

Thunderbird not responding while trying to connect to gmail account

Running windows 11 Pro and in the last microsoft update my thunderbird email is not responding at all. It is trying to connect to imap.gmail.com. How can i turn off auto… (read more)

Running windows 11 Pro and in the last microsoft update my thunderbird email is not responding at all. It is trying to connect to imap.gmail.com.

How can i turn off auto account checking on startup so i can access my email settings to try and fix this?

I tried running it in safe mode and i get not responding there too! Can i access a profile folder and turn off auto email checking somehow?

Open 1 40

I have a similar question to Jrei.

I have an address book setup with a number of what I'll call sub books for want of a better name. I used to be able to copy a contact from the address book to a sub book… (read more)

I have an address book setup with a number of what I'll call sub books for want of a better name. I used to be able to copy a contact from the address book to a sub book. I have either forgotten how to do that or something may have changed. I tried to drag & drop the address from the main book to the sub book but that doesn't work any longer. What am I missing here?

Open 1 30

How to backup my local folder?

My Thunderbird (windows) is really not working, so I want to reinstall the whole thing. I have 4 accounts and a local folder. I don't want to backup all the profiles befo… (read more)

My Thunderbird (windows) is really not working, so I want to reinstall the whole thing. I have 4 accounts and a local folder. I don't want to backup all the profiles before reinstalling, as I am having an annoying issue with g-mail (I don't HAVE a gmail any more, but Thunderbird wants to login to gmail every time I open it). I only want to backup the "local" folder, as, so I want to reinstall the accounts one by one from scratch. In that way I hope, I can purge Thunderbird of the gmail. Now the question: How do I backup the local folder in a way that makes it easy to import it back after all the reinstallment?

Open 19

How to find filter entries in Message Filter (Tools) with long lists of filters

I use Message Filters in Thunderbird extensively. Some of the grouped filters have many entries. Is there a quick way to find individual filter entries while using Thun… (read more)

I use Message Filters in Thunderbird extensively. Some of the grouped filters have many entries. Is there a quick way to find individual filter entries while using Thunderbird to, for example, modify or delete them? The only way I know of at the moment is to edit the the msgFilterRules.dat file as a text file.

Open 2

More lines in Title of Thunderbird appointments

Hi, I found an entry in the "thunderbirdmail.de" forum from 2005, where they discuss the option of using userChrome.css for changing the number of lines in the title of a… (read more)

Hi, I found an entry in the "thunderbirdmail.de" forum from 2005, where they discuss the option of using userChrome.css for changing the number of lines in the title of an calender appointment.

My problem is, that if the text of the title is really long, thunderbird will not enlarge the title window (more lines), so I can see the whole text (as in Outlook - from where I just changed to Thunderbird a few weeks ago).

The entry into the userCrome.css (as suggested in the forum)

.calendar-color-box .event-name-label {

  white-space:  break-spaces !important;

}

is not working (even I changed the "toolkit.legacyUserProfileCustomizations.stylesheets" to "true").

Can you help me with that issue?

Best reagrds

Gerd Attached screenshots

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