Thunderbird Community Forum

I've been a Thunderbird user for years. I have no idea what they changed recently, but it's incredibly, incredibly SLOW, almost to the point of unusability. Even something as simple as deleting emails.

I usually do these in chunks -- select multiples and delete. We're not talking about hundreds of emails at at time here, just maybe 5-15. Select them all, hit delete, and it should take just a couple of seconds to delete the messages. It did, in the past. But lately, it's taking so long that I could leave and make a sandwich, and when I come back, maybe it will be done. Maybe it will still be working, though, or maybe it will have locked up because it was taking so long.

It's pretty difficult to get work done at this rate.

Depuis la mise en place de cette nouvelle version le 9 aout 2024, je ne peux plus visualiser les pièces jointes d'un message, attachées en .pdf Je suis sur Windows 10 A vous lire,

Hello. My Thunderbird has been slow to pen,lagging while in it,and when clicking on messages,they do not show,and have to close it by right clicking the icon several times then waiting for it to close,then when reopening it,it says it is processing,and still open,and a box appears with an option to close the program so it can open again.I have done nothing to cause this.I have many important emails etc,and i cant uninstall the program,so i installed OE Classic,and was able to import settings from Thunderbird to it,and luckily i was able to export Thunderbirds setting to a 2.1 gn file that was the file i used to import to OE Classic,but OE Classic waits,and authenticates,and then i get a big error message,and here is the screenshot. I guess i,l try outlook express if its still any good for email(have heard /read otherwise) By the way i tried right clicking on the thunderbird shortsut,and selecting run as admin,and make it run in compatibility mode for win7,and thunderbird was fast for a day or two,but now its back to quicksand. Any help is appreciated. ThankYou, Screenshot....

Is Mozilla working on the below email I have received from Microsoft? "The safety and security of your information is top priority for Microsoft. To help keep your account secure, Microsoft will no longer support the use of third-party email and calendar apps which ask you to sign in with only your Microsoft Account username and password. To keep you safe you will need to use a mail or calendar app which supports Microsoft’s modern authentication methods. If you do not act, your third-party email apps will no longer be able to access your Outlook.com, Hotmail or Live.com email address on September 16th.

What do you need to do?

If you are receiving this email, you are currently using an email or calendar app that uses a less secure authentication method to connect to your Outlook.com email account. You will need to upgrade your third-party mail and calendar app to a version which supports modern authentication methods.

Microsoft provides free versions of Outlook for your PC, Mac, iOS, and Android devices which can be easily downloaded and connect to your email account. Using an updated version of an Outlook application will ensure you are connecting in the most secure way.

How can you set up your Gmail, Apple Mail, or other third-party mail application?

Various non-Microsoft applications will have their own steps for connecting to your Outlook.com email account using modern authentication methods. See our help article - Modern Authentication Methods now needed to continue syncing Outlook Email in non-Microsoft email apps. However, you may need to contact the creators of those applications to provide you with instructions. In many cases, simply removing and re-adding your account with the latest version of that application will configure it to use modern authentication methods.

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I utilized the security revision with Yahoo linked to by thunderbird to update the sign-in. It worked, however I lost the ~1000 emails in my Inbox. Can they be recovered?

(The emails filed in my local folders came across.)

Would it be possible to reduce the size of files generated? Perhaps by splitting them into smaller files.

As a home user with a not very fast upload (~10Mb/s) it takes a very long time to transfer files to my cloud backup provider.

Dear support, I have set up a Nextcloud with a calendar that is already synchronizing via DAVx5 to my mobile phone via a dyn-dns-domain. Also the DAV connection to Thunderbird works if I use my LAN IP to contact the (local) nextcloud server.

However, if I want to use the dyn-dns-domain (that works with DAVx5 on my mobile phone), I get error 401. Via e.g. Firefox I can log on to the nextcloud via the dyn-dns-domain as well without issues. Nextcloud is set up as part of a docker service behind a SWAG reverse proxy (that is bypassed when using the LAN IP approach as that goes directly to the Nextcloud docker container), but as the configuration works with the DAVx5 on my mobile phone, I am not sure how Thunderbird would try to get access any different. Is there a way in Thunderbird to see details on the exchange to the server to see where the issue comes from? That might at least provide some more information what could be the difference between DAVx5 and Thunderbird. Thanks for any hint on how I can identify the problem.

I have been using TBird for many years, but only for email. I have about 15,000 emails and an 18 GB profile. If I start using TB for calendar events and tasks, will that substantially increase the profile size and does that become an unwieldy folder to maintain in terms of errors occurring with time, and in terms of transferring it to a second PC?

Provide an option in global settings, to use a SINGLE, MASTER "MsgFilterRules.dat" file that applies to ALL accounts vs one for each account.

My self - and MANY other users - (based upon forums) have been attempting to create a single, consolitated .dat file, then paste it into each accounts Profile sub-directory. One issue is that periodically a user must repeat the process due to additional filters created over time, but only in its relative account.

I've been using the same web hosting and email service for over 20 years -- a long time such that I've been on their "legacy" server for a number of years now. I've hesitated to switch to a new service, because they said they are not able to transfer my old emails to the new account.

I called them a couple of days ago on a different issue, and they advised me to migrate my account to a new service, promising that they now have the means to transfer my old emails. Thankfully I asked them to hold off, because I later got an email from their "escalated support team" that apparently I would need to backup all my email content, as it will not be transferred if I migrate to a new service.

My question is: How do I backup my emails so that they are still accessible if I switch to a new email hosting service? I am not at all tech savvy so any help would be most appreciated!

My Thunderbird just upgraded me from 115 to 128.1.0esr. After the upgrade I can no longer send emails. I receive emails but when I try to send them, after pressing the send button, nothing happens - no popup telling me that Thunderbird is trying to send the email or anything else. If I close the send box, it saves the email to drafts. - I have not changed any of the outgoing server details and all was working fine with the previous version - 115.??? (don;t remember the service release but I think it could have been 9). Any help to get this resolved would be appreciated.

How do I revert back to a prior version of Thunderbird? The latest update has a great user interface but it has wrecked a few things for me. For some reason, some of the emails I put into folder (not in the inbox) now look almost like code. Also, I was using an ActiveSync addon to get an email address to work but now that is not working.

Hello, I'm Christian. I am still facing issues changing my Thunderbird into an IMAP account, for following reasons: -exporting the existing is OK -creating the IMAP account is OK -Reimporting the messages from previous POP3 account difficult, because: -when using the import fonction, a local folder is being created with a directory three that looks liked the previous Dir structure I had previously. But transfering the folder and files proves difficult, the copy/paste function does not work properly so I can't just click and drag. My thunderbird folder is approx. 20g, could that be the reason? Furthermore, I cannot delete the previous POP3 account or the local folders. Any idea why? I actually do have a thunderbird account (POP3) comprises of 4 differents email addresses, I can delete 3, but not the last one as it appears to be the default one. Thanks a lot for your support, much appreciated. Christian

Here is the code to send and email with attachment from excel using outlook, I would like to send the email with Thunderbird and cannot work it out.

Sub EmailAspdf()

Dim EApp As Object Set EApp = CreateObject("outlook.application")

Dim EItem As Object

path = "C:\Users\nigel\OneDrive\Self Employed\invoices\" invno = Range("C3") custname = Range("B10") fname = invno & " - " & custname amt = Range("H41") dt_issue = Range("C5") term = Range("C6")

ActiveSheet.ExportAsFixedFormat _ Type:=xlTypePDF, _ IgnorePrintAreas:=False, _ Filename:=path & fname

Set nextrec = Sheet3.Range("A1048576").End(xlUp).Offset(1, 0)

nextrec = invno nextrec.Offset(0, 1) = custname nextrec.Offset(0, 2) = amt nextrec.Offset(0, 3) = dt_issue nextrec.Offset(0, 4) = dt_issue + term nextrec.Offset(0, 8) = Now

Sheet3.Hyperlinks.Add anchor:=nextrec.Offset(0, 6), Address:=path & fname & ".pdf"

   Set EItem = EApp.CreateItem(0)
           
   With EItem
   
       .To = Range("B16")
   
       .Subject = "Invoice PO No: " & Range("C4")
       
       .Body = "Hi," & vbCrLf & "Please find invoice attached." & vbCrLf & "Regards" & vbCrLf & "Nigel"
      
       .Attachments.Add (path & fname & ".pdf")
   
       .Display
       
   End With

Exit Sub

When I open an email and begin scrolling, the cursor will move several lines then stop. Moving the scroll wheel on the mouse does nothing, Than, after several seconds, the cursor will jump down several lines and begin working normally. Then it stops, pauses several seconds, then works. Scrolling is jumpy, erratic. I have a couple of other programs (word processor, browser) that I use the scroll wheel to scroll through documents, web sites, etc. and they all work fine. I only see this problem in TB.