(In reply to comment #8)
> Bug confirmed under Thunderbird 2.0.0.0 (20070518) (Gentoo build, x86).
>
I've now upgraded to Thunderbird 2.0.0.4 (20070618) (Gentoo build, x86) and the issue is still here. I'm checking exclusively IMAP accounts (2 with SSL, 3 without), and these files appear in /tmp/ (also seeing left-over files in my profile as per Jo Hermans' post and Pawel Worach confirmation).
(In reply to comment #8)
> Bug confirmed under Thunderbird 2.0.0.0 (20070518) (Gentoo build, x86).
>
I've now upgraded to Thunderbird 2.0.0.4 (20070618) (Gentoo build, x86) and the issue is still here. I'm checking exclusively IMAP accounts (2 with SSL, 3 without), and these files appear in /tmp/ (also seeing left-over files in my profile as per Jo Hermans' post and Pawel Worach confirmation).