Thunderbird Community Forum

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?

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

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

Enough is enough—every update brings problems, crucial add-ons stop working, and now drag and drop attachments have stopped working. It's really inconvenient. Maybe it's time to stop this nonsense and implement paid subscriptions or purchases, but in a way that makes everything work.

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?

Schönen guten Tag,

seit ein paar Wochen habe ich das Problem das obwohl ich meine Emails nicht gelesen habe meine Mails als gelesen angezeigt werden. Ich hoffe sie können mir helfen.

Mit freundlichen Grüßen

Tobias PFeiffer

While using you site and looking at joining Thunderbird mail I have been cf charged twio amounts 1p and £34.99 by library hub .com I did not authorized These payments it is fraud I'm 71 years old and nearly blind and can't afford The loss of this money. Kind Regards James Robson

My email provider is terminating the existing email domain name, and replacing it with a new domain name. I want to retain all existing Thunderbird folders and emails for use with the new email. Example: username@q.com becomes username@myclk.com. (Yep, it's Centurylink.)

Can I change my existing Thunderbird account name and email and retain all existing folders and emails in the account? Some server settings would also be changed.

Or, do I need to set up a new account?

Thanks

Please consider a slight change in the new feature where on the bottom right we have an opportunity to click on "as read" or "delete". Great time saver, but for heaven's sake you bring up the Thunderbird anyway. Come on ! ! ! ? The short cut is so we don't have to bring it up. What good is this new feature if it is exactly the same number of clicks as if you didn't have this new feature. Walt

My Tags window & folder [View, Folders, Tags] layout stopped properly displaying all my items with the appropriate "tag" set in the past few updates to T'bird. I recently switched to version 140.4.0esr but the problem existed before that in 140.2.1 as well. Is there any way to force a "rebuild" of the Tags window so that all my tagged items show in their appropriate categories, with appropriate statuses [read/unread, etc]? Otherwise, the Tag feature is no longer useful.

I've been wanting to access Thunderbird's encryption ability on both my laptop and desktop. However, in setting up Tbird on my laptop I notice the user Profile should stay on one computer. Can I use the same Profile on more than one computer using the same source and password? Can I open a new profile on a second computer, even though I would have to use the same email source, a local provider? If not, is there an online source of email data I can use on Tbird on my laptop. Thanks much, Bruce Bartrug

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.

Every so often a message pops up that a folder can't be compacted because it's in use.

I don't understand why TB bothers users with this message. Compacting folders is supposed to be invisible to the user. It'll get compacted eventually, so no user action is required.

If I'm missing something, please educate me.

And if not, what's the best chance of getting it removed? Should I submit a bug report and argue that it's a bug in the design? Is a suggestion likely to do anything?

Yesterday, I thought I had my original problem with TB fixed by installing v140.5.0. Well, things just got worse.

While trouble shooting it today, it AUTO UPGRADED to v144.0.1.

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?

All of our email goes through Proofpoint. It has a feature that redirects all links to their URL Defense before allowing it to continue to the original destination. However, when the link is typed out in the email, Thunderbird pops up with the message that there is a Link Mismatch Detected and it lets the user go to the actual link instead of forcing it through the Proofpoint URL Defense. I need to disable that feature or create an exception for anything that redirects to Proofpoints URL.