I-Thunderbird Community Forum

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.

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.

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.

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.

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?

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.

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.

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?

T-Bird,

Using the latest version of Thunderbird, all of the sudden I cannot attach/send photos or documents. The 'send to' mail icon in the menu is not lit up to accept the attachment. The message come back 'no file associated'. My defaults are as they were. I have been using Thunderbird email client for likely twenty years. What has changed and how can I get my Windows 11 to recognize again? Would reloading the program help? Any information/help would be much appreciated as I am not a system dive in file changing techie. Thanks, Doug

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

Please teach me how to quickly jump to the folder where I have saved an attachment file on my PC soon after I saved the file? I want to open the attachment file soon after I have saved it to a folder I selected upon saving it. Does Thunderbird have a function to indicate the folder to which I have saved an attachment file on my PC?

By right clicking an image, there is a menu which has more options, and in more options there is "send to". By clicking "mail recipient", a dialog opens up to select the file size preferred. Then click attach. At this point, in windows 10, the email is ready with attachment in Thunderbird. Now, new PC with windows 11, when I click attach, the dialog disappears, but no email appears in Thunderbird. I have checked settings, and Thunderbird is chosen for .eml and for MAILTO Does anyone know how to make this work in windows 11?

I Have Thunderbird 137.0.2 running on Win11

When saving an attachment and navigating to target folder for save, no files in the target folder on the local PC are displayed.

This is not the case when looking for an attachment to send, only when saving attachment. I have another instance of a slightly older release of Thunderbird on a Win10 PC that behaves the same. Anu Ideas?

Thunderbird Version 142.0 will open when I chose a file to send to mail recipient using win 11, but the new email screen doesn't open so no file attaches. All my defaults are correct, there is a proper mail recipient entry in the appdata sendto file and there is a key in the registry for Thunderbird under client mail.

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?

My problem is that JPEG attachments don't open, though PNGs do. I've got Original HTML actioned. Defaults are set to Fastone Image Viewer. Right click shows options but "open" doesn't work. Any ideas?

After creating an email message, I click on attachment button to attach a file or pdf document to the message. The file explorer screen opens for a second then closes, giving me no opportunity to attach anything.

I need to attach files of total size 54mb. I open the folder where the files are stored in File Explorer and select all of them. I press ENTER and it says “These are large files. It might be better to use Filelink instead.” I click Link, and it displays the uploaded image.

Thanks for your help, SweetTasha