Security settings

I am using Windows 11 and Thunderbird. A few days ago I was asked to type my password every time I opened the mail program. But the password is not accepted now. I have u… (read more)

I am using Windows 11 and Thunderbird. A few days ago I was asked to type my password every time I opened the mail program. But the password is not accepted now. I have used the mail program for years without this problem. How do I fix it?

Asked by wa23 3 months ago

Last reply by Googlethunderbird 3 months ago

Authentification mistake

Hallo, Ik gebruik 2 verschillende gmail-adressen in Thunderbird. Met het ene adres heb ik geen probleem, met het andere krijg ik steeds de melding "Authentificatiefout ti… (read more)

Hallo, Ik gebruik 2 verschillende gmail-adressen in Thunderbird. Met het ene adres heb ik geen probleem, met het andere krijg ik steeds de melding "Authentificatiefout tijdens het verbinden met server imap.gmail.com". De serverinstellingen in de accountinstellingen in beide adressen zijn identiek. Hoe los ik dit op? Bedankt voor uw reactie.

Asked by jjb.breed 5 months ago

Last reply by david 4 months ago

Message field too narrow

The message field is too narrow for all messages, except pure text messages. A screenshot is attached. How can I modify the userChrome.css so that all available space ge… (read more)

The message field is too narrow for all messages, except pure text messages. A screenshot is attached. How can I modify the userChrome.css so that all available space gets used?

Asked by Thomas likes to learn 3 months ago

Last reply by Toad-Hall 2 months ago

how can i replace thunderbird profile with an older profile that has all that i need

bold text4 or 5 years ago i simply synced TB and Firefox straight to my laptop from my desktop. Today it does not seem to work that way. Why has it gotten more complicate… (read more)

bold text4 or 5 years ago i simply synced TB and Firefox straight to my laptop from my desktop. Today it does not seem to work that way. Why has it gotten more complicated? I have all of my emails, address's and etc.saved profile and cannot seem to replace it. I tried the thunderbird.exe -p and it gets confusing there. Apparently it does not give one the option to replace profile like mine, but one can create one. I tried creating by entering my old Profile and it did not work. It says to use the Browse button which should bring you to the actual spot to add your profile. I do not see a 'Browser" button, but do see 2 separate folders buttons, but i do not know which to choose, if any. I have donated in the past when things were working smoothly, but discourged to add to it now with all these upgrade mess's. Like they say, "if it ain't broken, leave it alone..." s amd

Asked by Anthony 1 month ago

Last reply by david 1 month ago

Cox / yahoo - User Name keeps changing. The fix I read does not work for me in 2024. Please, please help.

""Description: COX Server Name: smtp.mail.yahoo.com Port: 465 Connection Security: SSL/TLS Authentication method: OAuth2 User Name: your user name, duh - Mine keeps chang… (read more)

""Description: COX Server Name: smtp.mail.yahoo.com Port: 465 Connection Security: SSL/TLS Authentication method: OAuth2 User Name: your user name, duh - Mine keeps changing the user name to the last name I put into any of my 6 accounts. The only way it will send mail is if the correct user name is in the correct account (obviously). Why is it changing constantly? click OK""

I've read the "fixes" from 2023 and they do not work for me. I tried changing the DESCRIPTION to blank, didn't work. Changed them to the corresponding e-mail for the account. Didn't work. Changed it to "SMTP" with the corresponding e-mail. Didn't work.

It keeps changing the last one I edit to the one I edited before it. It's driving me crazy. Won't send mail unless the User Name is correct (obv.)

Whole mess started when forced to switch from Cox to Yahoo recently. Seems to be working other than TB changing the name as soon as I type in the next one in the next email address and then it not working until I change the User Name back to the proper e-mail address of the 6 accounts.

Asked by ceeveekay 2 weeks ago

Last reply by david 2 weeks ago

Signature size

I created a signature years ago. With the last Thunderbird update, the signature font (and image) shrunk in size. I would like the signature to match the font size of t… (read more)

I created a signature years ago. With the last Thunderbird update, the signature font (and image) shrunk in size. I would like the signature to match the font size of the message text, like it used to. I can't find any information about that, or any explanation as to why it shrunk.

Asked by bobking10 2 weeks ago

Last reply by david 1 week ago

Mail bar missing

I recently purchased a new laptop and needed to migrate my old Thunderbird profiles. This is what I did: 1. Backed up profiles from old laptop 2. downloaded and installed… (read more)

I recently purchased a new laptop and needed to migrate my old Thunderbird profiles. This is what I did: 1. Backed up profiles from old laptop 2. downloaded and installed latest version of Thunderbird on new laptop 3. coped profiles into \roaming directory 4. tested and successfully received emails and viewed all old emails.

The problem is that the Mail toolbar is nowhere to be found. Also, the calendar is missing. I tried right clicking on empty space and it only showed "menu bar" as an option. Attachment shows nothing in the toolbars option of View dropdown.

Asked by m_nowak 3 weeks ago

Last reply by Toad-Hall 3 weeks ago

Cannot restart Thunderbird BETA after normal close

Start new Windows session. Start Thunderbird and works OK. Shut Thunderbird down and try to re-start during same Windows session and it will not launch. Reboot Windows an… (read more)

Start new Windows session. Start Thunderbird and works OK. Shut Thunderbird down and try to re-start during same Windows session and it will not launch. Reboot Windows and try to start Thunderbird and works OK. Alternatively, going into Task Manager there will be a number of Thunderbird processes running. If I manually end them all (while Thunderbird is NOT active) then I can restart as normal too. This all began with 124.0 Beta 1. Never had the issue prior.

Also, Thunderbird crashes if restarting within the app. By this I mean clicking the X it appears to close (excepting those persistent processes running) but "Restart Thunderbird" such as to launch Troubleshooting mode or from the "Restart to update Thunderbird" config crashes the app with 100% consistency.

Asked by Dudley Fuddpucker 2 months ago

Last reply by Wayne Mery 1 month ago

Email tabs are blank

I keep several email tabs open that have topics I am currently working on with clients. Recently they have been turning blank, so I have no idea what they are--I feel I h… (read more)

I keep several email tabs open that have topics I am currently working on with clients. Recently they have been turning blank, so I have no idea what they are--I feel I have lost info that I need to do business. Why do they turn blank? I need this fixed ASAP!

Asked by eyeart 1 week ago

Last reply by Googlethunderbird 6 days ago

Windows Defender reports recurring Thunderbird profile Trojan:HTML/Phish!pz threat

I am a longtime Thunderbird user, currently running 115.6.0 (32-bit). Very recently Windows Defender is detecting malware it identifies as Trojan:HTML/Phish!pz. Defender … (read more)

I am a longtime Thunderbird user, currently running 115.6.0 (32-bit). Very recently Windows Defender is detecting malware it identifies as Trojan:HTML/Phish!pz. Defender is unable to quarantine or eliminate the threat.

The specific file is appearing in Volume Shadow Copy data when I am running backup: file: \Device\HarddiskVolumeShadowCopy55\Users\fhanz\AppData\Local\Thunderbird\Profiles\sootdszw.default-release\cache2\entries\342F92977A0BA0715CB8880A9289BC8F8827262C

I've attempted several times to remove the offending file(s), but the problem returns.

What is the best method to determine the source of this malware and effectively eliminate it returning?

If it matters, I use Chrome as my default browser.

Asked by fhanzel@aol.com 4 months ago

Last reply by Mr Greg 4 months ago

Cannot add/configure new email account/address

I have been given an email account as a board member of a local non-profit organization. I have tried but cannot get it to work in Thunderbird. It does, however, work o… (read more)

I have been given an email account as a board member of a local non-profit organization. I have tried but cannot get it to work in Thunderbird. It does, however, work on my Apple devices (iPad, iPhone & Watch). I'm missing important correspondence by not being able to get on my desktop. Any help will be greatly appreciated.

Asked by dkupchak1 1 week ago

Last reply by Matt 2 hours ago

Email

When trying to send an email, I received an error message saying that my incoming and outgoing email in settings must match. They do! Still cannot send an email. My ISP … (read more)

When trying to send an email, I received an error message saying that my incoming and outgoing email in settings must match. They do! Still cannot send an email. My ISP says the problem is on your end - something to do with the routing after thunderbird was updated. They said quite a few people are having the same issue. Please fix this!

Asked by mlglenn 4 months ago

Last reply by Matt 4 months ago

Disconnected

My email is not receiving and cannot send emails. A message shows up saying that the server has been disconnected. How can someone who has no computer expertise fix this … (read more)

My email is not receiving and cannot send emails. A message shows up saying that the server has been disconnected. How can someone who has no computer expertise fix this problem. My business emails come to this email. Should we get rid of it completely? We Need Help Fast. I've been posting messages but nobody has responded yet. Im not very familiar with this system and we Need Help ASAP! Please Help!!!

Asked by sales398 2 months ago

Last reply by david 2 months ago

Merge problem

I have two computers, one older with TB 115.9.0 32 bit, pop. The other has 115.9.0 64 bit, imap, same email address. I have tried to merge them, but when i do the Thund… (read more)

I have two computers, one older with TB 115.9.0 32 bit, pop. The other has 115.9.0 64 bit, imap, same email address. I have tried to merge them, but when i do the Thunderbird Import folder has zero messages and no subfolders. I also tried changing the old TB to IMAP, didnt work: "configuration problem". Any help would be appreciated.

Asked by bput71 1 month ago

Last reply by david 3 weeks ago

Multiple install / update Thunderbird problems

Unable to start -> Side-by side configuration error message Unable to uninstall -> Another Message says there is an unfinished thunderbird update, must restart pc. … (read more)

Unable to start -> Side-by side configuration error message Unable to uninstall -> Another Message says there is an unfinished thunderbird update, must restart pc. after restart, no update starts. back to the same situation. Unable to Re-Install -> Downloaded Installer, but installation gives the same "unfinished update error"

I already copied the "Thunderbird" Folder from the "AppData/Roaming" Folder. Is this the correct Data Backup so I don't loose my emails?

Please help.

Asked by marc.schenk 5 months ago

Last reply by Wayne Mery 5 months ago

Thunderbird 115.8.1 unable to write the email to mailbox

Since upgrading to version 115.8.1 I get unable to write email to mailbox . I have three email addresses in my profile. All are POP. One (from yahoo) always hangs and the… (read more)

Since upgrading to version 115.8.1 I get unable to write email to mailbox . I have three email addresses in my profile. All are POP. One (from yahoo) always hangs and the other two fail intermittently. OS is Windows 10 64-bit at 22H2 level It doesn't matter if Zonealarm is turned on or off. I have over 300GB of free space on disk.

Full error message: Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox.

Asked by gordon_dlm 2 months ago

Last reply by Michael Lewis 5 days ago

Thunderbird (115.6.1 (64 Bit) Unable to Send eMail

Suddenly, I can't send email from my Thunderbird (115.6.1 (64 Bit)) Windows app. Spectrum is my email provider. I can receive email just fine. However, when I respond to … (read more)

Suddenly, I can't send email from my Thunderbird (115.6.1 (64 Bit)) Windows app. Spectrum is my email provider. I can receive email just fine. However, when I respond to an email and when I send a newly created email or replying to a receive email, I get the following error message - " Sending of the message failed. An error occurred while sending mail. The mail server responded: <[edited] @tx.rr.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again."

I've been using Spectrum and Thunderbird for many-many years. This problem is going to cost me big-time if not resolved soon. I love THUNDERBIRD!

Please help!

My email address is - [edited] @tx.rr.com [removed phone# from public]

Asked by Robert Spencer 4 months ago

Last reply by Toad-Hall 4 months ago