Thunderbird 커뮤니티 포럼

Due to issues with upgrading from Ubuntu 24.04.1 to 26.04.1, I decided to just start from scratch with a new clean install.

After finalising the install, I copied across my Thunderbird data to the new partition, merging directories as the data copied across. But, somewhere in the transfer I lost about the last two years emails, with only emails up until 12/24 being available.

There are a lot a important emails I need to recover, and I'm guessing they're still on my PC, in the old partition, and I desperately need help to recover them.

I set the app to open .jpg images as mspaint.exe and now every time I try to open a jpg I get an error message from mspaint saying "unable to create new document".

In the settings there's a list of attachments with options, but I can't find one for jpg images. How can I change the setting?

Thunderbird locked up. Followed forum advice to reload Thunderbird. Identified legacy abook.sqlite and history.sqlite files but these will not import to reloaded Thunderbird. Confirmed these files are not read only. Any advice much appreciated..

I upgraded my system to Kubuntu 26.04 LTS and started Thunderbird. The window where messages are listed was covered with Thundrbird presentation asking for donation. Only edge of one message is seen above the presentation and I cannot get to the list

Thunderbird email says the certificate for my Shaw email server does not come from trusted source. The certificate looks fine. I cannot get Thunderbird to "Add exception". The certificate issue seems to be an intermittent problem since yesterday lunchtime. It started working again yesterday afternoon, but stopped working at lunchtime today. How do I stop this error?

We are not getting emails because we keep getting an error message which reads The certificate for imap.shaw.ca does not come from a trusted source.

I have been through all the steps and configurations and everything is set correctly but suddenly Thunderbird does not communicate with Gmail. I have tried everything. My passwords are correct and IMAP and STMP configurations are all correctly set. Now what?

Hi, I'm using Thunderbird for Yahoo Emails since many years (it's great!).

In March/April 2026 I changed the Server Settings (authent. method) to OAuth2, it has worked properly.

But since 23.9.2026 I cannot receive Emails in Thunderbird any more (only for the Yahoo account, I have another Email Account working properly in Thunderbird). Bottom text is "Message 1 of 33 will be downloaded", but nothing is downloaded after severals minutes.

My Yahoo Account in the Firefox Browser works properly, its ONLY Thunderbird (and probably OAuth2?). I have removed my Oauth2 Password in saved password of Thunderbird and generated a new one, but that does not help.

So if this issue cannot be solved, I will use another Email Program instead of Thunderbird!

Kind regards Soenke

I asked this question on Google and the AI answer although sounding logical and easy did not work.

I have a number of saved emails that I would like to add to my local folders. Any help will be appreciated.

Hi,

Thunderbird regularly unable to connect to my Google Calendar. Is there anything I can do? I updated it to the latest version today and now it said all the calendars (local, Google) are unavailable no matter what I do (unsubscribe, subscribe again and again)

And if I try to create a new calendar, the Google Calendar option is not even there anymore.

Is the latest Thunderbird broken or something I did?

Thanks,

Will

I was notified by the Cornell University IT department that "Microsoft will begin retiring Exchange Web Services (EWS), an older technology used by some email and calendar applications, starting October 1, 2026" and that my use of Thunderbird might be affected.

Is Thunderbird currently using EWS to access my email account: cal19@cornell.edu

I am moving the host of my email domain to a different provider and I want to protect my historical emails. I have set up the emails as POP3 so I should have all the emails on my PC, but in the past when I transferred my business email to a new host I didn't back up the database. So, when I put the new email host settings into outlook, it over-wrote the database and all my historical emails were wiped, and it turned out that my back up and archive pst files were both corrupted so couldn't restore them ( I have since managed to retrieve everything but it was a long process I don't want to go through again if I can help it). So I'd like to know where the database is stored so I can duplicate it first. Any help would be appreciated.

The last update to 156.0.1 changed my inbox settings.

Previously when I would highlight an email in my inbox it would show it read and show a preview in the lower frame. Now the email stays in BOLD and there is no preview frame. Where do I change it my Inbox back like it was previously? How do I change the setting so that when I highlight an email in my inbox it shows read and shows a preview in a preview frame?

Thunderbird update to 156.0.1. After 2 days, it stopped accessing my email account. Get Messages does does not bring up password screen. Have confirmed that server settings are correct per ISP requirements. Thunderbird loads OK. Can see and access my previously downloaded emails. However, can NOT access email server for any new emails. No idea what to do or where to go. As is, Thunderbird is a useless program.

Desktop Windows 11 Thunderbird 156.0.1

I have configured the message columns in the Message List pane for all the folders the way I want them. Unfortunately, Thunderbird frequently changes the columns in some, but not all, of the folders back to the default column configuration.

To temporarily fix this, I click on the column picker button in the folder that has the column configuration I want and select "Apply columns to > Folders and its children > " my top level folder. I also repeat this and select "Apply current view to > Folders and its children >" my top level folder. Sometimes this corrects the column organization in all my folders, but I usually have to repeat the above procedure multiple times to get the columns arranged the way I want them in ALL my folders. This lasts a few days before Thunderbird again returns the message columns in SOME of my folders to the default configuration. I then have to repeat the above procedure multiple times to get them the way I want, only to have to do this again in a few days.

How do I stop Thunderbird from making these changes, or how do I change the default column setting to the way I want it, not the way Thunderbird wants it?

This is not a new issue for me. I've been dealing with this for quite some time over many Thunderbird versions.

I have set up rules to move messages from the inbox to saved folders. There are some messages which remained in the Inbox and I have read but not moved to saved folders. There are other read messages which remain in the Inbox. The count of messages in the Inbox (and all folders as well) does not match the number of messages displayed. I am attaching a screenshot showing there are 2 messages displayed in my Inbox, but showing a count of 7 messages. I know there is at least one of the "missing" messages which I need to move manually to another folder, but how do I see those "missing" messages?