(In reply to comment #24)
> what is a 1.8 brunch bug?
The main development happens on trunk which will be Thunderbird 3.0 in the future. But all releases of Thunderbird 2.0.0.x are build from a separate branch which is 1.8 now. You can test with a Tb 3.0 alpha release where it should work. But create another profile therefor.
(In reply to comment #24)
> what is a 1.8 brunch bug?
The main development happens on trunk which will be Thunderbird 3.0 in the future. But all releases of Thunderbird 2.0.0.x are build from a separate branch which is 1.8 now. You can test with a Tb 3.0 alpha release where it should work. But create another profile therefor.