Comment 28 for bug 509665

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0
Build ID: 20180704192850

Steps to reproduce:

When printing multiple messages (in one go) to a file, only the last message ends up in the .PDF file. Apparently the file gets overwritten for each message.

First reported in Ubuntu Bug Lauchpad -
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/509665

Steps to reproduce:
In an open Thunderbird:
1) Select a message by single-click;
2) Select second message by Control-click;
3) Select third message by Control-click;
4) Click on "hamburger menu", in upper-right corner to open menu;
5) Choose "Print..." from menu;
6) Choose "Print to File", select Output format PDF, leave filename at default "~/mozilla.pdf";
7) Click green button "Print" in upper right corner;
8) A popup flashes a few times, indicating the messages being printed.
Check file "~/mozilla.pdf" with a PDF viewer (using Evince)
The file only contains the LAST message from the selection.

Actual results:

Actual results:
The file only contains the LAST message from the selection.

Expected results:

Expected results:
Expect the .PDF file to contain all messages.