
Reason Core Security causes error ".unable to open the temporary file.".When Panda uninstalled, Thunderbird was back to normal. Thunderbird v 24.3.0 said it could not access the temp directory although the outgoing emails were there. Installed but it interfered with sending emails. Microsoft Windows Defender aka "Antimalware Service Executable" (ASE) aka MsMpEng.exe how to exclude Thunderbird User reports of slowness fixed by creating an exclusion for the Thunderbird profile folder.Microsoft Security Essentials aka MSE (Settings | Excluded Files & Folders | add your profile folder, typically c:\users\-your-user-name-\appdata\roaming\thunderbird **) bug 621008.McAfee: Main McAfee topic below McAfee Active Protection bug 544684 shutdown hang, slow startup, bug 1015437 Slow getting mail.


, crashes Thunderbird,, , tbird_24 very slow - solved by reinstalling BD. Bitdefender solved by disabling BD or adding exception for Thunderbird:.Avira antivirus slow Mac, slow Mac, blocks compact,,.Please see the sections above before proceeding.
