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

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  • 18 have this problem
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  • Last reply by christ1

ken31756
ken31756
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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

Modified by Wayne Mery

Chosen solution

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

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christ1
christ1
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Perhaps my problem is caused by McAfee?

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

ken31756
ken31756 Question owner
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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
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Chosen Solution

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