Thank you Ouattara for this complete report.
About apport, it is working in your system, since it generated the
report that you have attached. Maybe what your system lacks is the GTK
frontend for apport (package apport-gtk) .
** Changed in: mozilla-thunderbird (Ubuntu)
Importance: Undecided =
I have found the report into /var/crash/
** Attachment added: "crash report file"
http://librarian.launchpad.net/7237344/_usr_lib_mozilla-thunderbird_mozilla-thunderbird-bin.1000.crash
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[feisty] Thunderbird crashes and apport doesn't act
https://bugs.launchpad.net/bugs/105146
You received
** Attachment added: "Video of this crash"
http://librarian.launchpad.net/7237293/out.ogg
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[feisty] Thunderbird crashes and apport doesn't act
https://bugs.launchpad.net/bugs/105146
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubun