Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. اگر به کمک نیاز دارید لطفاً یک سؤال بپرسید.

Thunderbird 78.10.1 very slow opening messages especially with attachments

  • 3 پاسخ
  • 1 has this problem
  • 4 views
  • آخرین پاسخ توسّط sfhowes

tom255
tom255
more options

Recently Thunderbird 78.10.1 is very slow opening messages. It takes from 2 to 5 minutes. It never used to do this. I have Windows 10 Home 64 bit. I recently updated to Thunderbird 78.10.2 and it is still happening. Any ideas?

Recently Thunderbird 78.10.1 is very slow opening messages. It takes from 2 to 5 minutes. It never used to do this. I have Windows 10 Home 64 bit. I recently updated to Thunderbird 78.10.2 and it is still happening. Any ideas?

All Replies (3)

sfhowes
sfhowes
  • Top 10 Contributor
more options

What is the antivirus and its settings for email? Run Windows in safe mode to test for interfering startup apps.

tom255
tom255 Question owner
more options

Thanks for replying. I tried turning off Real-Time Scanning in McAfee and it didn't help. Then I tried running Windows in safe mode and that didn't help - I gave up waiting for an email to open after waiting over 2 minutes. This is so frustrating - this all started happening in the last month

sfhowes
sfhowes
  • Top 10 Contributor
more options

I don't think you want to turn off McAfee Real-Time scanning, but the mail scanning options should be disabled:

https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues#McAfee

But if the problem remains in Windows safe mode, look through the list of items here to see if any of them apply to your setup.