User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0

Steps to reproduce:

i wanted to forward a received email with a pdf-attachment with size unknown to another email-adress. if the attachment is downloaded it has 104 kb.

Actual results:

it worked but without the attachment

Expected results:

forwarded with the attachment. at the moment i have to download it and add it to the forwarded email

i wanted to forward a received email with a pdf-attachment with size unknown to another email-adress.

Not sure why the pdf attachment has unknown size. Can you save the email as eml file and upload it here, so we can try to reproduce?

Thanks, I can reproduce. I'm afraid bug 977562 comment 7 also applies here.