[TagZilla] TagZilla incompatible with Thunderbird 1.5.0.9

[David Perry]

Murphy hates me.

Less than a week after updating TagZilla to work with Thunderbird, I
discovered I could no longer compose or reply to emails.  The latest
automatic update broke TagZilla, or is broken by it.  If you're also
finding you can't compose new emails, try disabling TagZilla and
force-killing Thunderbird (it won't properly exit, either).

I've poked around a bit, but haven't found what could be causing this
yet.  Since it's nearly Christmas, I won't have much time to investigate.

My apologies,

David