Comment 13 for bug 1853007

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:69.0) Gecko/20100101 Firefox/69.0

Steps to reproduce:

Version: 68.1.2 (64-bit) Linux
Open Thunderbird, read, respond, write new messages.

Actual results:

Depending on the session activity, lots of files left in /tmp. Typical files:
nscopy.tmp
nsemail-1.eml
nsemail-2.eml
nsemail.eml
nsemail.html
nsmail.tmp

These files are owner read/write only. If left alone, more such files accumulate during each Thunderbird session. Not a priority, just somewhat sloppy, like a memory leak.

Expected results:

Those files should have been deleted upon each session close.