I-Thunderbird Community Forum

Something seems to have changed recently with the PDF rendering in Thunderbird. I received an email with a PDF file attached. When I view it on the screen it looks fine, but when printing it out from within Thunderbird part of the top of the first page missing; it looks like part of the image is behind a white rectangle.

When I save the file and print it using Acrobat Reader it renders fine.

I don't know what to make of this behavior, but it does seem to be new and there is a difference between how the file is printed from Thunderbird as opposed to printing using Adobe Reader.

Thunderbird 152.0.1 on Windows 11 PC.

Suddenly since Friday 21.08.2026 morning every single person in our company started to call the IT department that their Thunderbird client is printing out blank pages (white pages) instead of attachments from emails.

What is happening -> Employee gets email with PDF attachment -> clicks to open it in thunderbird print preview -> prints -> blank page comes out.

What works -> Downloading the PDF and printing it. Opening the PDF in any other browser than Thunderbird and printing it.

No settings or updates were changed and it's a big issue affecting multiple computers.

What I tried doing -> Trying different printer (No fix), Resetting print settings in thunderbird (No fix). Trying other PDF attachments from older emails (No fix). Looking at print settings in windows (Which I didn't change since it only doesnt work in Thunderbird).

Problem is that on thunderbird in my office, This doesn't happen. We have the same versions and settings.

I tried opening the error console while opening the PDF and on computers where it doesnt work it shows me an error with along the lines of "This document is open in compability mode due to **** header <doctype html>" Something like that but i would have to check again.

I don't get this error on my personal PC.

When I try to print a PDF attachment it comes out as a blank sheet. This used to work OK. The print preview is fine. I have altered the settings to open PDFs in acrobat as a workaround. Any help appreciated.

All of a sudden I can't print attachments. Not sure if it was the recent update. I can print the email, just not any attachments. They print blank pages. I have to save the attachment to my desktop and then print it.

I can print e-mail, but not the attachmnet since yesterday. So I contacted HP-support, but it is not the printer. The last attachment I printed was before the last update of thunderbird. What can i do?

Edit: Just saw it was already a known issue: https://bugzilla.mozilla.org/show_bug.cgi?id=1959171

I've found out that on both Linux and Windows since the last update (154.0), the PDFs printed directly from the Thunderbird PDF viewer, prints out blank PDF.

To recreate this, open a PDF attachment in an email, simple double click on it, in the top right corner on the tool bar, press the little printer icon, choose either "Save as PDF" or print to the actual printer, in both cases, you will get one blank PDF page.

For years I have been using Thunderbird and supporting with donations and one of the important uses is being able to preview .pdf files and then quickly highlight and copy information from the pdf such as an invoice number so I can paste it into another document.

Now I can not do this - Why?

I am running 154.0 (64-bit) on Windows 11 - not that this should matter - clearly the issue is the update has chanced how .pdf's can be accessed.

Other issue is printing the pdf only prints a blank page

Incredibly frustrating - what is the issue and how do I fix it?

This isn't really about messaging, it's about attachment printing, but I can't find a better topic to file this under.

I get emails with PDF attachments dozens of times a month. When I print the PDF's, I always select "print headers & footers" and never had an issue until this morning. Now if I "print headers & footers" all I get is headers & footers, no portion of the PDF file is visible on the printout. If I unselect that, what I get is a blank page. Changing margins doesn't help. Changing the Scale doesn't help. Saving the files and then printing them from Adobe works fine, but obviously I don't want those extra steps and I DO want the headers & footers from Thunderbird.

Windows 11 home, 25H2 26200.9168 Thunderbird 154.0 64 bit, it auto-updated itself to this version sometime in the last day or two.

Dzień dobry, Zgłaszam powtarzający się błąd w programie Thunderbird. Mam problem z drukowaniem załączników w formacie PDF bezpośrednio z okna wiadomości e-mail. Opis problemu: Podczas próby wydruku załącznika PDF, w oknie podglądu pojawia się czarny ekran z komunikatem, że aplikacja nie obsługuje podglądu. Po kliknięciu „Drukuj”, drukarka wypuszcza całkowicie puste, białe kartki. Środowisko: System operacyjny: Windows 11 Drukarka: Canon MF450 Series UFR II Ważne informacje: Drukarka jest w 100% sprawna. Drukowanie tych samych plików PDF po zapisaniu ich na dysku (przez przeglądarkę, Adobe Acrobat) działa bez najmniejszego problemu. Problem występuje wyłącznie wewnątrz Thunderbirda. Co już próbowałam zrobić (bez skutku): Uruchomienie programu w trybie rozwiązywania problemów (Safe Mode). Czyszczenie pamięci podręcznej (cache). Resetowanie ustawień profilu drukarki w Edytorze ustawień (usunięcie parametrów print_printer). Wymuszenie systemowego okna dialogowego przez zmianę print.prefer_system_dialog na true. Wyłączenie zaawansowanych funkcji drukowania w sterowniku Windows i zmiana trybu na rastrowy. Wygląda na to, że wbudowany silnik czytnika PDF w Thunderbirdzie przestał poprawnie komunikować się ze sterownikiem Canon UFR II. Będę wdzięczna za zbadanie tego błędu i pomoc, ponieważ drukowanie bezpośrednio z programu jest mi niezbędne do codziennej pracy. Z poważaniem, Alina

Does Thunderbird use an internal PDF print driver? I can't print PDF attachments in color from an email. I've checked my print settings but Thunderbird only prints black. If I save the PDF file and then double click it, Adobe comes up and prints it full color. I'd appreciate it if it can brought to soneones attention.

Thank you.

Hallo, nice to contact you; today, suddenly I'm suffering the following problem using Thunderbird 137.0.2: reading the e-mail in my incoming mail or sent mail, it is not possible to open attachments, save them etc. no message or advice; if I try to open the attachment of my old mail stored in local folder, everything works, and also if I open the attachment of my incoming or sent mail with another mail client or using web mail. I deletet my account including data, and reinstall Thunderbird and reconfigure it with no results. Many thanks for any help.

TB in WIN11. Right click on any file. In Win10, there was a "send to" option. In Win11, there's a "share" option. To send a file directly, select "show more options." The older version's menu will appear, and it will say "send to -> email recipient." Is there a way to generate an option to send files faster? When the file sending window appears from the file manager, the cursor in the message writing window doesn't move to the address field (as it does when composing a new message) but somewhere else. This is quite strange, because you automatically start typing the recipient's address, but it doesn't appear in the program. This is probably more a system issue than Mozilla's. Perhaps a registry entry or other action might work. Perhaps the submenu after right-clicking on a file, or the icon at the top next to "Copy, Paste, Cut" or in section share it.

I see that any emails I sent using my outlook/microsoft account, two copies of that sent emails get generated under 'sent' folder when it should just be one so each time I have manually delete one copy. I have not seen this issue with other providers like Gmail, Yahoo or iCloud (Apple).

The other issue is which I have only started having today is that when I am trying to attach files the dialog box from which I can select the files open briefly for like 2 seconds (with no contents visible) and then disappears.

Hello,

Need help with the following as its creating confusing attachments. Whenever someone attaches an EML file to an email, the attachement pane shows the EML file AND the attachments from said EML file along with any other attachement, is there a way to not show the EML attachments to avoid any confusion and not download repeated older attachments?

Dear Thunderbird, I am using version 128.10.2esr and I have noticed lately that in my Inbox the email From have all been given the same incorrect senders name. This usually happens to emails that contain an attachment How do I correct this ? Thank you. Regards. Steve Hawes.

Hi,

Where can I change in the settings the default Attachment Save(As) Folder / Directory. That Folder is also used by extract-em (for "save individual attachments"). On my installation it defaults to c:\user\myname\desktop but I can't find a way to change that location.

Another question : is there a way to disable the standard TB attachment Save(As) (shown at the bottom of a message) and replace it completely by extract-em ?

Thank you