Hi,
Any chance to get Enigmail back, either in the Thunderbird 1.0 rpm or as an additional Fedora (non-extras) package?
Enigmail is said to have a version for Thunderbird 1.0 now. IIRC it was once removed because of a maintenance nightmare, maybe this problem disappears after the official release of Thunderbird?
The problem will always exist as long as they are not maintained by the same people and thus on different release cycles. The basic nightmare is: new release by mozilla, enigmail is broken until a new release of it. Generally, this is fairly quick, but it is unreliable, and when time becomes important (say for security updates), you can see where this becomes a problem.
I would very much applaud and offer what assistance I can to an effort to get Enigmail integrated into Mozilla Thunderbird's source, as I think that is the ideal solution here.