Slow delete of inbox messages, sent and trash messages ok Norton tech support says not their prob.
Inbox messages slow deletion, sent and trash work properly. Contacted Norton tech. Norton disabled still have problem. Reset Norton firewall no help.
All Replies (5)
Try to start Windows in safe mode with networking enabled. - Win10 https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode
Still in Windows safe mode, start Thunderbird in safe mode. - https://support.mozilla.org/kb/safe-mode
Does the problem go away?
christ1 said
Try to start Windows in safe mode with networking enabled. - Win10 https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode Still in Windows safe mode, start Thunderbird in safe mode. - https://support.mozilla.org/kb/safe-mode Does the problem go away?
yes, thank you!
Windows safe mode disables anti-virus software, which is most likely the culprit.
Create an exception in your anti-virus software for the Thunderbird profile folder, so that the anti-virus real-time scanner will not scan it. http://kb.mozillazine.org/Profile_folder_-_Thunderbird
Don't let your anti-virus software scan incoming and outgoing messages.
Don't let your anti-virus software scan attachments.
Don't let your anti-virus software intercept your secure connection to the server.
Remove any add-ons your anti-virus software may have installed in Thunderbird.
Keep it working. http://kb.mozillazine.org/Keep_it_working_-_Thunderbird
ref zorro's other topics which I have just closed: - https://support.mozilla.org/en-US/questions/1152671 - https://support.mozilla.org/en-US/questions/1137700 - https://support.mozilla.org/en-US/questions/1146016