Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Why is Thunderbird running very slow on Windows 7 CAUSE: McAfee

  • 3 fhreagra
  • 18 leis an bhfadhb seo
  • 11 views
  • Freagra is déanaí ó christ1

ken31756
ken31756
more options

Installed Thunderbird ver 31.6.0 on my desktop Windows 7 Home Premium, SP1, 32bit, 4G ram, Intel i5 2.66 GHz, a few months ago and it ran great at first. Now that I've used it awhile it has slowed down considerably. All functions of Thunderbird are slow, clicking to highlight a group of messages, deleting even just a single message, opening a message, etc. It has compacted the folders several times, and I do not have a large number of stored messages (maybe total of all folders including trash, spam, sent, etc is around 500). I am running McAfee Anit-Virus which does scan email attachments.

Has there been reports of slow performance with Thunderbird on Win7? Perhaps my problem is caused by McAfee? Thoughts, suggestions are welcomed, Thank you, Ken

Installed Thunderbird ver 31.6.0 on my desktop Windows 7 Home Premium, SP1, 32bit, 4G ram, Intel i5 2.66 GHz, a few months ago and it ran great at first. Now that I've used it awhile it has slowed down considerably. All functions of Thunderbird are slow, clicking to highlight a group of messages, deleting even just a single message, opening a message, etc. It has compacted the folders several times, and I do not have a large number of stored messages (maybe total of all folders including trash, spam, sent, etc is around 500). I am running McAfee Anit-Virus which does scan email attachments. Has there been reports of slow performance with Thunderbird on Win7? Perhaps my problem is caused by McAfee? Thoughts, suggestions are welcomed, Thank you, Ken

Athraithe ag Wayne Mery ar

Réiteach roghnaithe

Good. Can you then mark the thread as 'Solved' please? Thank you.

Read this answer in context 👍 3

All Replies (3)

christ1
christ1
  • Top 25 Contributor
more options
Perhaps my problem is caused by McAfee?

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

ken31756
ken31756 Úinéir na ceiste
more options

ken31756 said

Installed Thunderbird ver 31.6.0 on my desktop Windows 7 Home Premium, SP1, 32bit, 4G ram, Intel i5 2.66 GHz, a few months ago and it ran great at first. Now that I've used it awhile it has slowed down considerably. All functions of Thunderbird are slow, clicking to highlight a group of messages, deleting even just a single message, opening a message, etc. It has compacted the folders several times, and I do not have a large number of stored messages (maybe total of all folders including trash, spam, sent, etc is around 500). I am running McAfee Anit-Virus which does scan email attachments. Has there been reports of slow performance with Thunderbird on Win7? Perhaps my problem is caused by McAfee? Thoughts, suggestions are welcomed, Thank you, Ken

Thank you for the reply and link. I followed the steps in the article and it resolved the slowness issues. Thanks again :)

christ1
christ1
  • Top 25 Contributor
more options

Réiteach Roghnaithe

Good. Can you then mark the thread as 'Solved' please? Thank you.