Thunderbird Support Forum

I have an issue with using newgroups via NNTP server in Thunderbird. News only load during startup of the program. Whenever the option Get Messages is chosen later, or when it is automatically run by the program, the process seems to get stuck in a loading state. In this state neither can new messages be read (the headers seem to be there and are shown, but the body of the message isn't), nor can new messages be sent (message sending gets stuck in status "Assembling Message")

This has been the case for a few releases already, and is currently present on 115.10.0 (64bit)

Has anyone seen a message similar to this when trying to attach a document, usually a pdf to an email?

O:\XXXXXXXXXX.pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences.

Also, when someone send me an image file, I can't open it directly from the email. I have to download it and then open it. This isn't as big of an issue as the above, but I thought I'd ask it too.

Thank you

Windows 10 Thunderbird 115.10.0

I've got a Fastmail account, and have set up CardDav according to Fastmail's guide to get set up with Thunderbird.

Once my contacts synced, I was unable to see my contact lists in the Thunderbird contacts sidebar, nor can I add a list (the button is greyed out). Is this a known issue? Is it Fastmail specific, or a CardDav thing?

Running macOS 14.3, Thunderbird 115.9.0

I am an e-mail packrat.... I have a pop e-mail but keep years and years worth of old e-mails (inbound and outbound) some with big attachments. My backup for the few e-mail accounts I have within my profile is approx 13 gigs. I've moved machines... and currently running Ventura on my imac.

I have to force-quit all the time to get my e-mail working again. It hangs-up.... sometimes will recover... but then... I type a few words or maybe sentences... and back to HANGING-UP again. Sometimes after a Force-Quit... it will behave for awhile. Other times... it takes 4-5-6 force quits in a row to get the program working again. Been having these issues for months... and have taken out all the add-ons etc.... HELP... pulling my hair out! Thanks

MacOS Sonoma 14.4 seems to have broken a number of apps. AFter updating to Sonoma 14.4 I experienced a great number of crashes with Thunderbird, so I completely uninstalled Thunderbird and removed all traces of plists, Application preferences, everything, reinstalled Thunderbird, and added back the two email accounts I use with it. It now takes up to 30 seconds to start up Thunderbird, after which it happily no longer crashes, but obviously the startup time is unacceptable. I experience the same problem with Typora, and the developers there informed me that they believe the problem is with a Sonoma change that broke WebKit. I don't know if Thunderbird still uses Gecko or if the new version is WebKit. Please let me know if other Sonoma users have reported this problem or if it's just my system.

An IMAP mail system is configured on a server running Debian 12. While there are never any problems via webmail, reception and sending work occasionally via Thunderbird 115.9. Even in "Troubleshooting Mode" it doesn't work. The server has good hardware characteristics and there are no applications that can slow it down, nor do I think it is a firewall problem or incorrect parameters otherwise it would never work. The error is related to timeout reaching the server. What can I check to find out where the problem is?

My Thunderbird email on my PC will only open intermittently in the last few days. Re-starting my computer sometimes helps, but only temporarily. There are no error messages- just nothing happens. I am still able to access email on other devices - just not on PC - which I use a lot. I'd be grateful for ideas of how to fix this. Thank you, Pam Rycroft

Yesterday, whenever I tried to open Thunderbird I got a This app will not open on your PC Windows error, and Word and Excel would not work. Apparently I had some Windows 10 problems which I was able to repair with Windows Resource Protection. Thunderbird now runs, but all 2000 of my Inbox messages do not appear. If I open my Mail folder in my Profile, I see the four folders inbound.att.net, inbound.att-1.net, inbound.att-2.net, and inbound.att-3.net The size of each of these inbound Mail folders is 5MB, 9.8GB, 38MB and 20MB. So, all of the missing Inbox emails are in the inbound.att-1.net folder but they don't show up. I tried deleting the .msf file. That didn't help.

Does anyone have any suggestions?

Hello, I hope that this question is taken at face value. I Have tried working with the new UI since it was pushed and as of today I have had enough and I have reverted back to 102. there are a number of issues that have still not been addressed or fixed in 115 or 125 but the thing I keep finding increasingly infuriating is the UI. I understand UI is personal taste for some however for productivity changing the UI can be disastrous. it has been months since the release of 115. And the amount of time I have wasted because of the new UI is staggering. it is (to me and from what I am reading MANY others) extremely un-intuitive and tedious to use. I will not mention all the performance issues here as they are a separate issue. I would have liked to see an option to use the previous (read standard / tried and true) UI but since they did not, they appear to need an incentive to do such, so as the subject asks how much will it cost to add an option to revert the UI and how can we annotate that we would like it reverted as the donation page does not allow for notes or requests, and obviously the current leadership has a vision that is not in line with many users expectations.

I would like to reiterate this is not an attack on people who do like the new UI but a simple fact that many people appear to not like it and would like to be able to continue using the software both up to date and with a UI that actually makes sense to them since email clients have been virtually the same for over 2 decades now and that look and feel has become the de-facto standard in the industry for a reason.

TLDR: new UI is no longer intuitive to "industry standard" applications and I want to know how much it will cost to bring that back.

I received the new version, Version 115.10.1, and the next morning I have emails going to other folders, 1261 junk files that had already been received over maybe the past week or so all received again AND not filtered to the junk folder but rather to the inbox. 2 emails moved from inbox to another folder. Train wreck.

Whenever I open my Thunderbird email application .. its constantly asking me to re enter all the passwords for the email accounts I have within the app .. I even select to save the password but its constantly asking me to enter it than i enter it and a minute later again it loses sync with the server and i have to re enter it again and again for each email I have linked within the app

I have my email account set with the order being descending date of arrival and the messages are unthreaded.

However, every time I get a new message in the account, it appears at the bottom of the list of messages. I only made one change to my email in Thunderbird when this started happening. Prior to me setting up a filter to search for amazon.com messages and direct them to a separate folder, the messages all appeared on top, in the correct date order. After, they appear on the bottom, even if I change to another folder or different email address and come back, the message is still at the bottom.

It is like when you have a folder open in Windows browser and then you save or modify files in that window, they reappear on the bottom.

Closing the program (like if you close a window) and reopening it causes the new message to appear where it should be. However, that is a substantial inconvenience. I have Thunderbird monitoring nine other e-mail accounts at present. None of them have a message filter. All of them show the email at the top of the page. New messages to my primary account appear at the bottom of the page even when I have Thunderbird showing the inbox of one of the other email accounts.

Using Windows 10, Thunderbird 115.10.1 (64-bit).

Any assistance would be appreciated.

Since the 14/04/24 I can no longer receive or send any emails. I am using Windows 11 and am on a Lenova laptop and appears I have Thunderbird version 115.10.1. I have spoken to my internet provider at great length and they ending up saying that they could not help me any more and I had to contact Mozilla. When I try to receive emails I get a message saying this: Server mail.skymesh.com.au has disconnected. The server may have gone down or there may be a network problem. I am able to access my emails through my internet providers web emails also. I don't know of any more information that I can put in here so I will leave it at that and hope that someone out there can help me as I have absolutely no idea what to do next. I am not a computer person what so ever and will not be able to fix this on my own so any help will be appreciated but I will need details. Thanks in advance. Tam

Hello

Yesterday there was update in Thunderbird and went well. But today, Thunderbird suddenly asking for credentials and then it went totally blank as in screenshot. There is nothing at all. But incoming mails are still showing up in windows notification and it can be opened as new tab of Thunderbird. I have been searching the possible cause and solution from forum and internet, but no luck. Can someone please help me about this ?