Thunderbird 38.4.0 very slow to open or delete messages (5 or more seconds) CAUSE: Bitdefender AV
Thunderbird very slow to open or delete messages. Have compacted folders, emptied Junk and trash folders, no improvement. Just upgraded (about 3 hours ago) to 38.4.0
Modified by Wayne Mery
الحل المُختار
If you have not changed anything except updating thunderbird then it's likely caused by antivirus software. see https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues and https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems
Let us know what youf ind please
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الحل المُختار
If you have not changed anything except updating thunderbird then it's likely caused by antivirus software. see https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues and https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems
Let us know what youf ind please
Problem turned out to be interference from BitDefender. A little more searching found a possible help: "Uninstall and re-install BitDefender". Did that, and problem solved.
Thank you.
- Jim
Jim, thanks for letting us know the cause