[Bug 87101] Re: when opening an attachment, it should be written to tmp as a read-only file

[Chris Jones]

Saving temporary files elsewhere just relocates the problem - users
still won't know where they've saved the file.

Preventing edited files in /tmp/being deleted is (afaik) impossible
because you can't easily distinguish them from regular temporary files
that should be deleted.

Preventing users saving files in /tmp/ sounds like a world of pain.

Making firefox/thunderbird save such files as read-only ensures correct
and unsurprising behaviour - the files are temporary and will be cleaned
up on reboot (or earlier) and the users can't edit them in-place.

-- 
when opening an attachment, it should be written to tmp as a read-only file
https://launchpad.net/bugs/87101