Comment 19 for bug 940631

For the record, if it can help someone: I managed to get access again to ThB:
1. $ mv ~/.thunderbird{,OLD} # rename config dir
2. $ thunderbird # just open it, configure nothing & quit
3. $ mv ~/.thunderbird{OLD,} # rename config dir back

With this I can now run ThB. I still have the millions of popups, but I can see the "main" GUI, go to "Preferences->Security", uncheck the 'Master Password", enter my password to definitively unlock the keychain.

PS: SOMEBODY NEEDS TO MARK THIS BUG AS A SECURITY VULN!
Indeed, enabling again the master password results in ThB faulting back to it erroneous behavious: closing down randlomly when password-asking pop-ups are validated/cancelled. This means one cannot use a "Master Password" in this release at all if some calendar are in use. This means all the passwords for all email/news/IM/calendar are exposed!