Thunderbird does not shutdown properly in F11?

[mike cloaked]

    Ed Greshko wrote:
    Mike Cloaked wrote:
    > I have thunderbird with lightning (and enigmail) installed in
F11, and when I
    > shutdown thunderbird I see the processor using a significant
fraction of the
    > CPU and the process "thunderbird-bin" is still active. I can kill this
    > process, but I can't see any way to prevent this unclean
shutdown happening.
    >
    > Does anyone else see this with the version of thunderbird in F11? I could
    > not find a directly relevant bz but have added a comment to
    > https://bugzilla.redhat.com/show_bug.cgi?id=493000
    >
    You can't be running TB 3.0b3 with lightning and enigmail, right?  I
    don't think those plugins work in that version...at least I wasn't able
    to install them...with any of the 3.0 betas.
    ... [show rest of quote]

When I originally installed F11 I then also installed the two
additional packages from the Fedora updates via yum - since then I
have just updated as normal and the packages remain in place.

Lightning is installed with:
yum install thunderbird-lightning which is in updates
and enigmail via:
yum install thunderbird-enigmail and this is in rpmfusion

I know that the latter is not strictly directly supported by Fedora -
but that was why I asked the question - if others are seeing this
issue but who have not installed the latter then this implies there is
a problem with thunderbird itself but I don't know the answer to this
yet?

-- 
mike