Thunderbird Community Forum

I'm presently running TB 147.1esr on a Windows 11 system. I have archived mail by years (2020, 2021, etc.) on an IMAP server and I have defined a Local Folders entry. I want to move some archived years off the server onto the local folders. What is the best way to do this? I searched for documentation, but couldn't find an article on that subject.

I have been dealing with this issue for the last several thunderbird versions. I am currently running 115.18.0

Everytime I try to configure an existing gmail account for thunderbird via File -> New -> Existing email account

I specify my Name and gmail email address, then password for the gmail account.

The google authentication pop up launches " Mozilla Thunderbird wants to access you Gmail" and I click "Allow"

As soon as I click "Allow" I am asked to download a file.

Google gemini says this file is a sign that Oauth is not being accepted by thunderbird.

What I have tried. I verified Thunderbird is set to accept cookies I have verified there are no previously stored gmail passwords (as this has never worked) I have changed my default browser from Firefox to Brave and verified the same behavior

please help, Thunderbird has never been able to connect to gmail when running on this Ubtuntu install.

I was switching from Outlook to Thunderbird and not being familiar with the tab layout made a dumb mistake, I thought I was deleting a tab with filtered spam but instead I selected all in my unified inbox and hit send to trash. It dumped about 4000 into trash that were not important but when that was empty it started pulling older email off the IMAP servers and filling the trash up again. I have about 28000 emails (I assume that makes me a hoarder) about 200 of which need to be kept. I took Thunderbird offline, deleted the Windows app, redownloaded and as soon as I added the accounts back in it started deleting again. Is there anyway to stop the delete all inbox transfer or do I just need to go back to Outlook or another email client?

For some time now, TB (147.0.1 (64-bit)) has been VERY slow loading, the first thing in the morning. If I close it and re-open, it opens at the normal--and desirable!--speed. Any thoughts? Regards, Dave

Hi. I recently had to change email providers and at first chose Proton but had to change again for reasons. Before I moved to proton, I shifted a whack of email to local folders on the advice of someone. I backed up my profile folder before making the move to proton, but didn't realise (I know, 'duh') that local folders didn't move. It wasn't untill I moved again that the local folders in the new install were empty.

All 3 accounts—original, proton & new—had the same email account name/domain but I want to know how I could create another instance of it to port all my old email from the original service—which has all the email still in their original folders (not local) so I have them 'non-local' again and can go through and organize them anew.

The alternative is to connect the local folders to this new instance but I'd rather the first scenario.

I'll only still have access to all 3 providers for another couple of weeks so this is feeling urgent.

Any help/suggestions most welcome. Thanks!

I'm not sure if I'm doing something wrong but in the last 3-6 months sending email from TB using Yahoo SMTP server is very slow and fails completely one out of three times. If I keep trying it eventually works without me having to make any changes.

My SMTP configuration is using port 465, OAuth2, SSL/TLS. Is that wrong?

I've been using Yahoo for a very long time without any problems but changing to OAuth2 seems to have slowed things down.

I have a fast internet connection and nothing else is causing any issues.

(Login to server imap.videotron.ca with username (username....)failed) shows up continually and I don't know how to make it stop. It is stopping me from sending or opening emails. Can someone please give me a solution. I've just switched it to a new computer and I am getting the same messages on both computers. Thanks

I can't login to one of my email addresses. It says login to server with username failed. I tried all of the suggestions (using a pop server for example) and none of them seem to work. Please help.

Since a few weeks ago every time I try to drag an email from the inbox to a folder (I'm not ever trying to drag it out of Thunderbird), if I falter with the mouse or try to drag it a second time I get dialog box asking if I want to replace a file that already exists in the "mozDraggedFiles" folder. e.g.:

 CONFIRM
 /var/folders/4g/sjfdskjgdsklfi098ds09jsejre/T/mozDraggedFiles/<subject_of_email>.eml Already exists do you want to replace it? Y/N

Clearly a temp folder for stored copies of emails before they get moved/copied somewhere.

There's a similar bug reported here: https://bugzilla.mozilla.org/show_bug.cgi?id=1983616

Which links to another couple of bugs, but all are talking about dragging files to desktop or other location but not about dragging them within the program.

Presumably once a dragged email reaches it's destination the copy in the mozDraggedFiels folder ought to be cleared right? I wonder why that has changed recently, I'm pretty sure I haven't had this issue before.

Also to make matters worse when the dialog box comes up, it is only displayed locally to the machine to screens connected directly to it and if I am remoting in with share screen or something like jump desktop the machine essentially hangs/disconnects until the dialog box is closed!

Anyone else getting this ?

I'm on OSX 15.1 and Thunderbird143.0.1 (aarch64) R.

thunderbird Is working fine, but this message crops up every few minutes, and requires 4 - 8 Cancel clicks. I've tried "Open anyway", I've deleted and reinstalled the app several times, and tried the terminal command "xattr - cr" and dragging the app into the window. Is there a proper fix for this. V. grateful for any solution. TIA Brian

Hello, since friday, 6.2. thunderbird does not launch new (and also not completely all older) Emails anymore. So I can't see all my recieved and send E-Mails. In all my 3 Mail-Accounts froms different providers it does not work anymore, without changing anything from my side I know. But from my handy, where I use google-Mail, it works.

I already checked synchronization settings and repaired the E-Mail-folders.

So, are there any technical defects or problems with thunderbird, an update for instance that caused trouble for instance? And what can I do, to make it work again? Atherwise I would have to quit thunderbird and change my Host.

Looking forward to your response and already thanks for support, all the best, M.

Problem with recurring events in the caldav (external) calendar. If you delete one instance of an event (today), events for previous days are automatically created.

Thunderbird ver. 140.7

The Hilton hotel reservation produces the following .ics file (with some edits for privacy), which fails on import. Deleting lines like the second block will import correctly. I can make this edit when needed, so this is more of a bug report than a question. I have not tried to narrow it down more, this is something I do once every couple of months.

BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Microsoft Corporation//Outlook 11.0 MIMEDIR//EN COMMENT:via ics.agical.io CALSCALE:GREGORIAN BEGIN:VEVENT DTSTAMP:2026xxxxT035151Z UID:2026xxxxT035151Z-1969360351@ics.agical.io DTSTART:2026xxxxT220000Z DTEND:2026xxxxT180000Z ORGANIZER: SUMMARY:Your Upcoming Stay DESCRIPTION: LOCATION:Hampton Inn %26 Suites by Hilton Wheat Ridge Denver West\, 4025 Clear Creek Drive\, Wheat Ridge\, 80401\,US BEGIN:VALARM TRIGGER;VALUE=DURATION:-PTM DESCRIPTION:Agical Alarm: Your Upcoming Stay ACTION:DISPLAY END:VALARM X-MICROSOFT-CDO-BUSYSTATUS:BUSY END:VEVENT END:VCALENDAR

BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Microsoft Corporation//Outlook 11.0 MIMEDIR//EN COMMENT:via ics.agical.io CALSCALE:GREGORIAN BEGIN:VEVENT DTSTAMP:2026xxxxT035119Z UID:2026xxxxT035119Z-224582756@ics.agical.io DTSTART:2026xxxxT220000Z DTEND:2026xxxxT180000Z SUMMARY:Hampton Inn %26 Suites by Hilton Wheat Ridge Denver West\, 4025 Clear Creek Drive\, Wheat Ridge\, 80401\,US END:VEVENT END:VCALENDAR

Hello,

Need To Know:

I have used Thunderbird (TBird) for many years. Recently, I moved TBird data from a Dell Inspiron 530 Win 7, to Alien Arora 1250. Unfortunately, the passwords would not go, so I copy and pasted the data for 10 email addresses. All worked well, until 5 days ago when I could not log into the ISP.

Since then, 12 ISP tech support people gave me 12 different was to fix the login problem. The 'logging in' kept trying to login. The only way to stop it is to close TB and restart it. The same happens with all 10 accounts - can't login.

I followed instructions to the letter and nothing worked. Later, a tech at ISP said they have had a lot of complaints from people with Tbird and said it's Mozilla's fault. They all said they don't support Thunderbird. They only support webmail. One even suggested I delete all my cookies. Of course I'm not going to do that.

You would not believe the amount of crazy ideas I was given.

Here is the core problem:

I used both Pop and IMAP depending on the email account. TBird was great with POP and IMAP either.

I changed all the passwords as instructed. I followed the Step-x-Step settings on the ISP web site

The ISP, Rogers, took over Shaw. Rogers, I'm told, dropped support for 3rd party email clients and requires customers to create a new email on their Webmail host. Webmail is WEBmail because it is not Email.

Testing Out TBird:

1. On the old Win 7 TBird (Ver. 68.1.1 (32-bit)) Email works with both POP and IMAP settings.
2. On the new Rig, Tbird (V. 147.0 (64-bit)) worked for a while.

What Happens: -- Due to the issues, I set Tbird to not:, -- Check for new messages at startup -- Check for new messages every -- Automatically download new messages -- Fetch headers only

The two ISP are Rogers Rogers and Shaw <--- just redirects to Rogers. But webmail.shaw.ca still works.

My Rig with the issues: Alienware Aurora Desktop 1250 Intel i9 Ultra Nvidia RTS 5080 Memory 32 GB DDR5 Storage 2 TB SSD + 2Tb HDD Thunderbird Version-147.0 (64-bit)

Is the ISP correct, that Thunderbird may be the core problem?

Thanks for your volunteering - where would we be without you, ~r

Add outlook email account in Thunderbird app on Macbook does not strictly go through microsoft 2-step verification process. In stead, microsoft verification window flashes away instantly and Thunderbird window takes over. Although OAut2 is specified, the set up is not right. Sending email from outlook account takes about one minutes. Sometimes if it takes longer time, sending email will fail.

I have been using ThunderBird on Linux Mint for some time now. I am using Outlook.com for emails, calendar and contacts and I sync with another laptop and mobile phone. All fine until a few days ago when I noticed calendar events were not syncing with my phone. I found one calendar event in ThunderBird had an error when I manually synced with TbSync. The error report did not say anything specific. I deleted this calendar event and TbSync ran successfully uploading 2 events that it had not uploaded due to the calendar sync error. I then wanted to manually recreate this calendar event in ThunderBird. When I clicked on "New Event", the Calendar New Event pop-up window did not appear. When I minimised the ThunderBird window, the New Events was not behind it. The ThunderBird icon pinned to the panel had a "2" in the corner. When I hovered over the ThunderBird icon in the panel, it showed both the ThunderBird window and New Event window preview. When I selected the New Event preview window in the panel, it still did not become visible. All I could do with with New Event preview window in the panel was click in the 'X' to close it. I checked for Lightning Calendar Tab add-on updates. It was up to date. I check the settings. All OK. I disabled and enabled this add-on. Still not working. My Windows habits made me shutdown and restart my device. Still Not working. When I checked the other ThunderBird functions, New Event pop-up windows appeared for Emails and Contacts but not Tasks which had the same symptoms as the Calendar.

Hello,

After today's Thunderbird update for Windows 11, over half of the folders in the local folder are no longer displayed. However, the folders are present in the backup folder on an external hard drive.

What's causing this?

Best regards, Steffen Liebig Bautzen, Saxony, Germany