TechnoBabel

Suddenly Mozilla Thunderbird started crashing on me. I found out that it was the webmail addon “Hotmail 1.2.15 (live)” which creates the problem. The solution is to upgrade to the newer version 1.2.17, but unfortunately this has to be done manually:

1) download the new version of the addon http://webmail.mozdev.org/installation.html (right-click save as).
2) start mozilla thunderbird [...]

The loading will get to the point where you click to continue [Mission Splash screen] once you click, the screen goes blank and you hear what sounds like an explosion then nothing. Only a black screen.
I found a solution in the relic forums
DragonRR:

Fix for this issue:
Go to this folder:
My documents\My Games\Company of Heroes\Savegames\RelicCOH\Campaigns\cxp2\
Find the [...]