Thunderbird Community Forum

thorsak 2/23/25, 2:49 PM

February 23, 2025

Hi: I've just recently installed 135.0.1 Mozilla Browser and have found that the file SAVING-function in the 'Application Menu' does NOT PROPERLY WORK: it records my message-title but NOT the contents (0-bytes!) -I never had such a basic issue in many years of very satisfactory Browser-use ...am I have a wrong setting somewhere and is there any quick fix please ...? - Email me when someone answers the thread ...MANY THANKS, Tony H.

P.S.: Please send me a link where I'd get a help since I'm NOT GETTING ANY HELP FOR SEVERAL WEEKS ...! Thanks-Tony H.

I had my desktop pc (of 7 years) diagnosed today, and all systems were reported functioning. But, now when I try to send an email I'm asked for my password. I don't know what it is, and can't find it in my book of passwords. How do I get me email functioning again?

I recently purchased a new computer and want to setup Thunderbird to use my ATT Yahoo mail account. I went through the automatic process and got an "incorrect information" message. I tried Yahoo's instructions and they don't match what shows up in the account setup in Thunderbird. I am stuck and need some step by step instructions to set this up. I found nothing in the help section. Thanks.

Hello Guys,

First of all I was using outlook but since with new update there's bunch of annoying stuff, limitations and ads everywhere, even tho If I force to use old app still get that "Update Outlook" & "Try new outlook" notifications. Thats pretty annoying so I decided to go use Thunderbird. but I have been experiencing significant synchronization issues with my Hotmail (Outlook.com) accounts in Thunderbird. Specifically, when I add more than one Hotmail account, the folders for those accounts do not appear at all. Additionally, when I attempt to send a test email, it shows as “sending” but then the process hangs, nothing happens.

To resolve the issue, I have tried:

• Removing and Re-adding Accounts:

I removed all my Hotmail accounts from Thunderbird and re-added them. During the re-adding process, I cleared the saved passwords (so that the login prompts would reappear) and manually configured the account settings (IMAP server, SMTP server, etc.) & cleared caches on %AppData% Thunderbird>Profile>Imap folder

• Connection Settings:

I verified that the incoming and outgoing server settings are correct (IMAP: port 993 with SSL/TLS; SMTP: port 587 with STARTTLS) and that the authentication method is set to OAuth2.

• Rebuilding Profile Indexes:

I backed up and deleted the local index files (.msf files) in my Thunderbird profile for the affected folders so that Thunderbird would rebuild them.

• Security Software Check:

I temporarily disabled my antivirus/firewall software to rule out any interference with the connections.

Despite these efforts, after re-adding the accounts, the folders still do not synchronize, and during a test email send, the message remains stuck in the “sending” or "Hanging" what ever you call it.

So I need help :D

Thank you.

This has been re-posted. In error my first post said ‘Firefox’ NOT ‘Thunderbird’.

Hi all. I recently had a terminal problem on my Win 10 computer so have bought a new Win 11 machine. I ran Thunderbird mail on the old Win 10, had 5 email accounts, had about 12 local folders and had my Profile stored in a folder on the desktop. The folder was moved there some years ago but don 't remember how I did it. I moved it there because this folder gets backed up every night.

So, I have managed to remove the HDD from my old machine and have located the 'old' profile folder. I now need to re-install Thunderbird on the new machine and match it up to my old profile folder (I think...)

Any advice on how to do that?

I am trying to send a message with lots of MIME attachments from Thunderbird. After I click "Send", I get this error message: "Number of MIME parts exceeds maximum permitted". Unhelpfully it does not say what the maximum is and I cannot find this information in Support.

I have uploaded an image of the message I get. I have 100GB of free disk space on my C drive where my Thunderbird programme is and 531 GB free space on the drive where I keep my Thunderbird profile - with all the mailboxes and archives. Windows 10 desktop computer.

Anyone know what the maximum number of MIME attachments to an email is? Thanks in advance

I am new to Thunderbird email after years of using the KOffice suite in KDE, once that stopped working I decided to switch.

I saw a notice that email notifications are being worked on, I just wanted to document the behavior I am seeing in case it's helpful in any way.

I am running on openSUSE 15.6, Thunderbird 128.7 in the KDE Desktop environment (Plasma Version 5.27.11, Frameworks 5.115.0)

I have my Thunderbird settings to show an Alert, Use the system notifications and play a sound, the default. The sound plays, but never is there a pop-up to draw attention to it. The notification is set to show Preview Text, Subject and Sender.

Thank you.

I am using Thunderbird version 128.7.0esr on Windows 11 Pro. I moved my Mail folder (and sub-folders) on my local drive. I re-directed each of 4 email accounts to their new sub-folder. The emails are downloading from the email host's POP3 server. New email messages are not visible in any of the inboxes. The counter shows the number increasing when messages are downloading. Global search does not find the new emails. The new emails show when I right click on any of the inboxes and select "Search Messages" (From/Contains."@"). I tried manually removing the Inbox.msf from one account, but did not fix when I restarted. I tried the Repair Folder button (right click Properties on Inbox folder), but did not fix. I know the emails are on my computer, but I cannot get to them without the very cumbersome "search messages" function. Suggestions?

I am trying to migrate my old Roadrunner (Spectrum) email account into Thunderbird. The auto create feature will not work with the settings that Thunderbird is finding. I have verified all of my information settings with Spectrum Support, and they tell me that Thunderbird has to supply me with some sort of special settings to make this work. Any help finding this info will be appreciated.

Hi - I have had gmail and my internet provider email accounts on Thunderbird working for years. Suddenly, a few days ago, I started getting certificate issues from Thunderbird warning me of the security risks. I chose to override. Now I am unable to download (imap) from either email server. I no longer receive the certificate risk dialog box. When I click on File>Get New Messages, message appear at the bottom of the page indicating Thunderbird is "connecting to the imap server" or "checking mail server capabilities", but nothing downloads. What do I need to do to correct this? Access to both servers stopped at the same time so I don't believe anything changed on the server end.

Thanks, Alan

Hi I have several mails with in my Thunderbird. For one of them I have unchecked all the server settings: "Check for new messages at startup" "Check for new messages every ..." "Allow immediate notifications..."

Thunderbird still keeps asking me for a pw at start and now and then. If possible I would prefer not to delete the account, but just have it as passive, so I can still find old mails there.

New mails from this old account, if any, are forwarded to another of my mails (another domain name), and then I move them manually down there, so it is easier to find. This was something my mail-provider arranged, so I should not pay 2x hosting for both domains. Alternative I can transfer the mails from the old account to a sub-folder with my active mail, but for organizational ease, is there a way I can keep a mail account as "passive" in Thunderbird, that is no check for new emails on this account and no ask for pw, since it is not really active anymore.

Dear filter specialists,

On a Windows 10 computer with TB Portable 128.6 and .7, folders can no longer be selected in the filters as ‘Run filter on’ or ‘perform these Actions’: the menu is greyed out. The phenomenon occurs with all accounts: POP and local. Various email providers, ESET virus scanner, Windows firewall, FritzBox cable router. The local account contains almost 30 GB of emails. The existing filters work as long as they do not affect the accounts or folders: for example, tagging e-mails works. Existing filters with folder-actions cannot be re-configured and no folder actions are possible when creating a new filter.

I have performed an update check and restarted Windows, changed the compression limit from 500 to 5 MB and changed a few minor settings so that the config is rewritten.

What could this be? How do I solve the problem? A workaround if necessary.

Thank you very much for your help.

I am using two profiles. The way I open it is open Thunderbird to start the default one, then I go through "help" > "troubleshooting" to get to the page that shows the link "about:profiles" and then I click that link so I can Launch the other profile. Not end of the world, but not fun either to go through all these steps.

Is there any way to create some sort of shortcuts that direct Thunderbird which profile to open?

Thank you

P.S. I tried playing with the Terminal as I found some references on how to use it to start the Profile Manager, but my Mac would not start any of that.

Typically if I experience a security certificate exception, thunderbird will popup the certificate exception box, I click to get certificate and am done.

Today I cannot get the certificate popup to appear. which is fine I know where the certificates are managed but I have not a clue how to add a certificate OR what information to enter into the "Add security exception" dialogue box

Any help would be greatly appreciated.