*Eset NOD32 {{Bug|541197}} (Bug report), [[http://gsfn.us/t/pavl getsatisfaction report]] <br>Repeated attempts to create huge temporary file during message synchronization due to Eset NOD32 causes slow gloda indexing
*F-Prot (see Solution for F-Prot Antivirus below)
*Kaspersky [https://getsatisfaction.com/mozilla_messaging/topics/receiving_email_is_very_slow slow getting mail#reply_10199388]
*Malaware free AV [https://getsatisfaction.com/mozilla_messaging/topics/running_so_slow#reply_9552090]
*McAfee {{bug|544684}} shutdown hang, [https://getsatisfaction.com/mozilla_messaging/topics/thunderbird_is_slow_to_launch slow startup]