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I am having an issue with retrieving my email in Thunderbird. On laptop, using Version 140.2.0esr | Released August 19, 2025. No changes were made to Thunderbird settings. The email is showing up in the Comcast portal, but for now having it forwared to a Gmail account. Tried changing password in Comcast (and in Thuderbird) to no effect. Tried deleting my Comcast email account in Thunderbird and re-adding it, but no change. Can send out email fine, just receiving it is the issue.

Interestingly, I use BlueMail on my phone and it, too, has the same issue and will not retrieve from Comcast. Thanks in advance!

It appears that any ESR version will auto upgrade to the Release version right after you close the program and shut your machine down. When you go back online, surprise!, you now have 144.0.1 installed with HALF your folders missing.

https://support.mozilla.org/en-US/questions/1548668/edit/1779923#answer-preview

I have 4 accounts in Thunderbird, each with an Inbox. Thunderbird shows the blue 'inbox' icon next to these accounts in their respective account folders, but only two of them show up in the "Unified Folders" inbox. I don't see any way to add the other two inboxes to the Unified Folders inbox.

It's possible I accidentally removed the two missing inboxes, but I am not sure how I could have done that. Is it possible to add them back in?

To be clear, I seriously doubt the problems I am encountering are TB's fault! The problems may be my fault since I've grown older, I've tended (believed) using new versions of software present my mind a BIGGER challenge than using the older software/version I have been successfully using? I'm still using Version115.10.1

After our ISP chose to start using Zimbra Oct. 7, 2025 and their tech support could not assist me in getting TB working the had me remove POP3 settings for TB and change to IMAP with their software.

FINALLY someone helped me get TB working with IMAP. For 3 days grrr. Now the ISP says I need to use their web mail, Zimbra.

So might downloading the current TB version and somehow get the In box, all the folder contnets etc. over - into the new TB help?

I was going to backup everything tonight, now I have little to NO hope, without help!

THANKS & remain WELL plus be SAFE!

Robin

Spectrum had me change my password for one of my accounts on Thunderbird. I changed it with Spectrum. That account was working fine from Nov. 6 until today, Nov. 16; today, it decided that my password wouldn't work. I tried to change it when it asked at the time I was trying to send an email; it wouldn't take. I then went into "saved passwords" and tried to change it; it wanted a pin. This is my** first problem;** Norton has no idea what that is. Thunderbird asked for other sign-in methods including a Yahoo email, but I have no idea what it wants as it doesn't want the password for that Yahoo account. What is it looking for????

I deleted the account from Thunderbird's password manager. After my shutting down and reopening Thunderbird a few times, it finally worked --however, it didn't ask for a password and sent and received email just fine. Thunderbird now doesn't have that account listed in its password manager, but is giving me my mail and sending my mail out without asking me for a password. **This is my second problem.**

Since this is all combined, I'm sending both questions together; otherwise, I wouldn't do so. Does anyone know what's happening and how to get a password back as a necessity for that email account?

I have an email account with BlueHost, which also hosts my web domain. A couple weeks ago I stopped receiving emails and contacted BlueHost tech support. The agent had no clue why I wasn't receiving email. She said "Can you please click on acocunt actions and remove the account and re-addd it. [sic]" I did that, and I was again able to receive emails. But then all my old emails -- sent and received -- had disappeared. BlueHost was able to restore my Inbox emails back to May 19, but was not able to recover any Sent emails. I have a backup of my Thunderbird directory from April, but would like to recover all of my old emails, which apparently still exist because my current Thunderbird Profiles directory contains files corresponding to deleted email folders. For example, my Inbox had a subfolder -- call it ABC -- that was deleted and is no longer visible in my Inbox, but I can find files ABC (no extension) and ABC.msf in my Inbox.sbd folder. My Sent.sbd folder also contains files ABC and ABC.msf. These folders are in C:\Users\aaa\AppData\Roaming\Thunderbird\Profiles\aaa.default\Mail\mail.aaa.com (with "aaa" representing my personal identifiers). mail.aaa.com contains files Inbox, Inbox.msf, Sent, and Sent.msf, which seem to contain my old emails. (Inbox is 132,151 KB and Sent is 289,829 KB, and the file dates are from a couple weeks ago, when I removed and re-added the email account.)

Is there a way that I can recover the old emails?

Hi,

I am trying to connect my account to RedTail so I can send a broadcast email through RedTail. When I try to put in my email password, it will not save. I have confirmed the email, tried copying and pasting, typed the email and I can't figure out what else to do. RedTail is saying it's because it doesn't recognize the password and that I need to reach out to Thunderbird. Please help.

Thank you

Sorry for the long=winded message but I figured it would save time to explain the steps from the beginning.

I've been using Thunderbird as an OSB for my archived messages from Apple Mail. In that scenario I create a .mbox file of all messages I want to save from a particular year and then import that into Thunderbird into a local folder with the year as the folder name. The version of Thunderbird where I was doing that is 115.10.1

I started testing Thunderbird version 139.0.2 as an Apple Mail replacement with only 2 of my email accounts.

Now I want to convert entirely out of Apple Mail. First I made a backup copy of the entire Thunderbird folder located in the User/Library folder onto an external hard drive that I then disconnected from my computer.

Then I downloaded the latest version 145.0 (aarch64) and installed it. (I still have the other 2 versions on my system) I opened it up and got into the profile manager (troubleshooting then about profiles) and discovered that I have 4 of them. I made the one that contains my archive the primary one. It does not have any connections to a live email account. I've only ever imported an .mbox file. Everything that I've archived is there. This is profile Number 1. I renamed it Archive so I could keep track of it.

Then I opened up each of the other 3 profiles in a new browser in sequence to see what they were.

It appears as if I have one that is empty. it opens up wanting me to set up an existing email address. I closed that one down. It's called Profile number 2.

The next one appears to be the current one for the 2 test email accounts. It has them properly configured, showing messages in the inbox and with the messages that are supposed to be archived off in the local folders I had created as I expect. I am calling this one profile number 3.

The third one first had me add the passwords for the 2 test accounts and then it is pretty close to number number 3 but is missing some of the local folders. This is called profile number 4.

Want I want to end up with is 1 profile. I would prefer to start with the one that has all my archive messages in their local folders, and then add the test accounts including all their messages from profile number 3 with its local folders. Once they are safely moved and part of the Archive profile I would like to delete all three numbered profiles. Once I am down to only one active profile and no others lurking about I plan to slowly start adding the rest of my email accounts moving them one by one out of Apple Mail and into Thunderbird.

I've read the various articles on moving out of Apple Mail into Thunderbird So I believe I can add the Apple email accounts to my Archive profile successfully. I have the import tools so I can import the .mbox files from Apple mail into those accounts.

Where I'm stuck is I can't seem to find an article that gives me detailed instructions on how to combine profiles within Thunderbird. All the articles imply keeping multiple profiles active and I would prefer not to do that.

I am sure I am just not searching properly but I am at a loss as to how to proceed. I do not want to delete any profiles or start adding more accounts until the profiles are cleaned up.

Thanks for reading this long explanation and I appreciate any help anyone can provide.

My C & D drives restored from a external device except some documents after inadvertently formatting . Then when trying to obtain latest version T-Bird wiped contacts

PDF filter doesn't work

Trying to refine my search to get only emails with PDF files attachment, only get an empty list when mails with PDF are in the base for sure.

Step by step with screenshots here attached sorted by A, B, C.

A - Basic search with "pdf"

     => 480 attachments files in emails 

B - Filtering A search to get only mails from year 2025

     => in 2025 only 27 emails with attachment - We see in the list result some emails with PDF files attached to it.

C - Trying to get only emails with PDF types attachment, clicking on the top left filter get nothing

      => It's a bug i guess.

Ubuntu 24.04.3 LTS Thunderbird 140.4.0esr (64 bits)

On 18 November 2025

Emails from a sender had HTML links that only appear as text and are not active (or underlined). I am using gmail. If I open the email directly in the Gmail app everything works as expected. If I forward the suspect to me at the same Gmail account, the links appear as they should. My default browser is correctly set as links in other emails open as they should. If I switch the "Message Body As" option from Original HTML to Plain Text, the links in question are now underlined and active. I am at a loss where to go from here. Any suggestions will be appreciated.

I send a regular bulletin to 40 users. Those who read on a laptop or tablet are happy but those on phones report that in landscape mode all is well but in portrait the right hand margin is about in the centre of the screen.

Is there anything I can do to use the full width of the screen in portrait mode?

I'm always missing emails because they are in a thread. Is there a way to make the new email green dot go off on the thread, or have all the threads automatically open or something so I know when I get an email? I miss them for days until I remember that I need to open all the threads one by one. Does the underline on the name etc. mean that there is a new email? That would also help. Been using this for years and never paid attention.

Thank you!!!!

I've been trying to set up Thunderbird to manage my emails. I've had no issues connecting to gmail accounts, but when connecting to mailfence, the connection times out. I've tried increasing the timeout limit, changing my network and firewall settings, and re configuring the server settings with no luck. Are these services not compatible? It seems like this shouldn't be this complicated. Any help is greatly appreciated!

Hello,

I have to add the Password every time I open Thunderbird because I removed the Password myself after I read this:

<<<< ThundaMike Mozilla Staff 7/28/25, 9:15 PM more options Sounds like you are almost there.

Building off what @david said above, try this:

In Thunderbird, go to Settings > Privacy & Security.

Scroll down to the Passwords section and click Saved Passwords….

Find your email account in the list and remove the saved password.

Restart Thunderbird.

When prompted, enter your new password. >>>

My doing this it removed the .twc password Log In totally in that Settings. I do not see the "my twc.com" in the settings of Tools, Privacy & Security, then Saved Passwords in the list, I only see the Hotmail account settings I have in Thunderbird. Removing it like ThundaMike wrote really removed all the TWC Password and Information.

Can someone help me restoring or re-enter my Mozilla Thunderbird info back into Tools, Privacy & Security, then Saved Passwords so I do not have to type in the Password every time I open Thunderbird.

Thank you so much for your time and efforts I truly appreciate it.

Spectrum forced a password change and now I can receive but not send emails from TB. I have spoken with Spectrum support, been through everything suggested on both the Spectrum and TB forums --multiple times-- including deleting and recreating the account, editing the password, checking for typos, blank spaces, changing the TLS security minimum, running in troubleshooting mode, etc etc. and nothing has worked. I have TB 140.4.0esr on a Chromebook with ChromeOS 141.0.7390.135 and Debian GNU/Linux 12, no separate antivirus program or firewall but do have Malwarebytes. The only recent update was to ChromeOS but that was weeks before the problem developed. I have two other (non-Spectrum) accounts set up on TB and they work fine. I can send emails from Spectrum's website but this is not a permanent solution. These settings match those provided by Spectrum, although they only show SSL, not SSL/TLS.

Comcast required me to change the password for my secondary Thunderbird email account. Now secondary Thunderbird account password doesn't work. It is my understanding that my secondary Thunderbird password has to match the one on Comcast. I have tried numerous times to try to change it and have not been successful. I have tried to follow the instructions I have found but instructions don't seem to work. Apparently I am doing something wrong. Would appreciate your help.

Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: <[10.252.0.16]>: Helo command rejected: IP address 161.178.137.204 blocked due to abusive authentication behaviour.

Can someone help with the above message

thanks Alan

When I add attachments when replying to emails, the file icons on those attachments don't display. This only happens when replying, the file icons display when receiving emails. Have tried many things to fix this including using ChatGTP with no luck. What can I do to fix this?