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Example email attached. Mozilla support emails say requests are coming from a windows 10 device but I am on 11. Is this a sign that something is wrong with my account or just a typo?

Thank you for your help and answer. I hope I can continue writing to you in German as well?

I can't find a contact person and the name of my Mozilla account has been changed; is that normal?

Thunderbird Portable Help

Question: A number appeared after my email address, so "email" and "1954". Who is that? Is that normal?

Question: Thunderbird Developer Toolbox: Can you see in the program? Can you see my emails?

Question: Are there any Thunderbird users left who speak German?

Questions: Thunderbird Portable The archive option isn't updating? How long does the backup take?

Different Thunderbird versions display a programmed year date in the archive option. For example, 2021 in one version and 2024 in another. Is that normal? I can't change anything.

It's as if it's accessing some kind of backup and maybe even sharing it, and I don't know what's correct.

Question: Update Channel Ellipse Update Channel esr. Previously, there were different channels. Isn't another channel better? I've read that it's more stable than switching. Is that true? Information regarding the question below?

140.9.0esr (64-bit) Thunderbird is up to date.

You are currently on the esr update channel. I'm experiencing stability issues with this one.

Thunderbird, Portable Edition portableapps - 1.0 Thunderbird is up to date. You are currently on the release update channel. New Download

General Information In Thunderbird Portable, there is a help page:

https://support.mozilla.org/de/products/thunderbird

Please reply and thank you very much for your help.

I already downloaded firefox vpn for windows and already have the firefox vpn extension icon on the upper right corner of my screen.

If I click on that icon extension nothing happens. What can I do ?

Hi, I just noticed that my computer has been infected by a trojan called "HEUR:Trojan.VBS.SAgent.gen", and I can't remove it via Kapersky...The trojan is found in the inbox file in Thunderbird. So it's not a file that I can remove (it's all code). Kapersky stated that these two files are the source of the Trojan (they are not found as an e-mail attachment in my inbox, it's all code in the inbox file in Thunderbird):

P000009384:Emirates_Marble-pdf.gz and P000009384:Emirates_Marble-pdf.vbs

So I'm simply wondering how I should go about to remove this trojan from my computer?

Source: https://threats.kaspersky.com/en/threat/HEUR:Trojan.VBS.SAgent.gen/

Even though I have created a main password I find that I suddenly I can open the application and view accounts and even security info, without putting it in anyway.

Dear all,

I would like to use Thunderbird on a shared computer at my universitys lab space (it is mainly my PC but other people have access and use it sometimes). However, as we are requested to keep mails confidential I thought it would be as easy as just setting a primary password and thunderbird would not start if that password is not set. However, that proofed to be a wrong assumption. Instead if I just cancel the dialog it will open and still display all the locally stored mails.

We are using IMAP server and I already set up that the mails are not stored locally. Still, some mails that I have used recently are visible. I am aware that there would anyway be the local copy in the profile folder but I guess none of the people sharing that computer would take the efford to check that, so I would be fine if I could simply prevent thunderbird from starting without the primary password.

Is there any option for that or any extention that would do so?

Thank you in advance! Juergen

Someone has created Mozilla accounts using several of my company's openly available email accounts. I can't figure why. Anyone have an idea why? I know this because all three accounts received the following email message from Mozilla: "Welcome to Mozilla! A few days ago you created a Mozilla account, but never confirmed it. Please confirm your account in the next 15 days or it will be automatically deleted. Don’t miss out on the browser that puts you and your privacy first."

Moderator note: This question has been edited to remove extra newlines.

I received an email from breach-alerts@mozilla.com informing me that Mozilla Monitor discovered a data breach that includes my personal information: Unfortunately, I don't know if this is a legitimate email from Mozilla. Can anyone confirm if it is or is not?

Thanks

Today is 01.16.2026 Hi Volunteers, thank you for the service you are providing Thunderbird users.

I didn't see a topic called Security, so I chose Settings.

For Thunderbird version 146, what specific version of LDAP is being used?

Regarding which LDAP version is the most up to date, I found this: https://pkg.go.dev/github.com/go-ldap/ldap/v3@v3.4.12

My concern is about LDAP's security. I believe it is reasonable to think that the latest available version of LDAP would have the latest and most up to date security patches applied.

I would like to feel secure knowing I have the protection of the newest version of LDAP which affords the best security protection available for Thunderbird laptop version 146.

However I have been unsuccessful in determining if Thunderbird 146 is using this LDAP latest version. Could you help me learn if Thunderbird 146 is utilizing the latest version of LDAP that is available? Thanks in advance.

Yes I know I am a bit verbose.

Dear Thunderbird Development Team

I'm a regular Thunderbird user. I'd like to provide feedback regarding security concerns regarding the UI specifications of the Android version of Thunderbird.

Currently, Thunderbird for Android displays the sender's "display name only" on the email list screen, making the sender's actual email address invisible at all times.

I feel this specification increases the following risks, particularly in smartphone environments:

- Anyone can freely forge display names. - Phishing scams posing as financial institutions, e-commerce sites, and official support are common. - Users often rely on the list screen or notifications to determine the content of emails.

As a result, a UI that makes it difficult to determine whether an email is from a legitimate sender at the list screen level can become a breeding ground for phishing scams.

The PC version of Thunderbird allows for detailed header display, etc., and I'm disappointed that the mobile version of Thunderbird, despite being the same Thunderbird, is at a disadvantage in terms of security.

I would appreciate it if you could consider the following improvements.

- Setting to always display "display name + email address" on the email list screen