Thunderbird:Testing:Shutdown Hang

Shutdown hangs, where Thunderbird is still running after shut down, are not all alike. The following easy questions help identify your type of hang. If you see a hang, please supply the following information:

1. cpu usage - is it high (pegged), zero, low, or other?
2. run netstat -a -b -o | grep -i thunderbird (or for windows, netstat -a -b -o in a dos command window) - are connections shown from thunderbird to ldap, imap mail server, or other protocols?
3. If the problem is easily reproduced and you have extensions installed, does the hang happen with Thunderbird started in safe mode? If it can't be reproduced in safe mode then the problem is probably an extension ... but extensions normally aren't the issue.
   • does the shutdown hang happen without calendar/lightning? (bug 532435)
4. is gloda indexing enabled or disabled? (Tools|Options|Advanced|General)
5. are your accounts pop, imap, or a combination?
6. did computer go into sleep or hibernate while Thunderbird was running?
7. was online or offline used, either via explicit action, or automatically?

Also helpful are steps to reproduce, and how often you see the hang (always, rarely, etc).

More technical ... if you can, please attach stacktrace file to bug using _hang_ instructions:

• How_to_get_a_stacktrace_for_a_bug_report
• Thunderbird:Testing:Get_A_Debug_Thunderbird_Hang_Stack

Related bugs - see "shutdown hang" query at Thunderbird:Bug_Queries

Additional references:

• bug 504971 comment 12
• bug 504971 comment 15

Fixed bugs in version 3 (most recent at top):

• bug 494014 shutdown hang, high cpu, no open imap connections
• bug 497598 hang on shutdown appending msg to imap folder via a filter
• bug 487965 hang on shutdown with open imap connections and zero cpu
• bug 420744 Shutdown fails with 100% cpu load when auto-complete over LDAP
• bug 495551 hang on shutdown, zero cpu, few (1-2) imap connections - from imap url initiated during shutdown (modal alert from imap thread / proxy call to UI thread)
• bug 516388 Hang when exiting Archives smart folder is used
• bug 497059 Hang with unreliable wifi connection, either when re-connecting to email server, or on shutdown