Comment 30 for bug 366103

I am faced with the same problem for Thunderbird 31.0 and 32.0b1.

It does not happen with Firefox 31.0 and Thunderbird 24.7.0 or lower.

Does Thunderbird hang in safe mode? YES.
Does Thunderbird hang with firewall or antivirus software disabled? YES.
Is gloda indexing enabled or disabled? ENABLED.
Are your mail accounts pop, imap, or a combination? IMAP.
Did the computer go into sleep or hibernate while Thunderbird was running? NO.
Did you change Thunderbird to online or offline status? NO. Always online.
Did you move your (laptop) computer to a different network? NO.
State your operating system and version. State Thunderbird version from Help > About. Win7 Professional, SP1, current patch level. Thunderbird 31.0.
How often you see the hang (always, rarely, etc)? ALWAYS.
CPU usage - is usage zero, low, high (maxed or pegged), or other? 0 percent.
ldap address book - do you have an ldap directory address book defined? NO.
run netstat (normal start mode):
  TCP 127.0.0.1:59799 Thomas-PC:59800 HERGESTELLT 7036
 [thunderbird.exe]
  TCP 127.0.0.1:59800 Thomas-PC:59799 HERGESTELLT 7036
 [thunderbird.exe]
run netstat (save mode):
  TCP 127.0.0.1:60253 Thomas-PC:60254 HERGESTELLT 6348
 [thunderbird.exe]
  TCP 127.0.0.1:60254 Thomas-PC:60253 HERGESTELLT 6348
 [thunderbird.exe]