Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Le thread ibivaliwe yaze kwaye ibilondoloziwe. Nceda ubuze umbuzo omtsha ukuba ufuna uncedo.
Locked Ezilondoloziweyo

Firefox does not call TWINUI, and the result is I cannot print downloaded files. Instead, I get an error message "an error occurred during this operation"

I-Firefox Okunye
jscher2000 -... replied
bbruce1
bbruce1

Firefox does not allow me to print downloaded and possibly other files. It does not bring up TWINUI, and maybe this is the reason. Using microsoft explorer, TWINUI appears, and printing works fine for the same files. How do I fix this problem. This is a fairly new problem and I only wish that when software works, it does not need software weenies messing with it!!!

Firefox does not allow me to print downloaded and possibly other files. It does not bring up TWINUI, and maybe this is the reason. Using microsoft explorer, TWINUI appears, and printing works fine for the same files. How do I fix this problem. This is a fairly new problem and I only wish that when software works, it does not need software weenies messing with it!!!

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer

Whoops, your question duplicated. Let's continue here: https://support.mozilla.org/questions/1273085