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Program is very slow to start and then when running. Caused by McAfee "Active Protection"

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  • Last reply by Wayne Mery

willowbarn
willowbarn
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Operating win XP professional. TB 38.3.0 with Lightening 4.0.3.1

Since updating the program it has become very slow initiating and when finally opening is generally slow all round. Performing simple tasks such as moving a file, the program seems to wonder off in to outer space. If you try to do something else the program flags a message "not responding" until it has finished do ing the first task. More often or not it then offers the following message. " Script: chrome:// Script: chrome://messenger/content/mailWindow.js:17messenger/content/mailWindow.js:17 "

Anyone got any ideas how to correct this?

Operating win XP professional. TB 38.3.0 with Lightening 4.0.3.1 Since updating the program it has become very slow initiating and when finally opening is generally slow all round. Performing simple tasks such as moving a file, the program seems to wonder off in to outer space. If you try to do something else the program flags a message "not responding" until it has finished do ing the first task. More often or not it then offers the following message. " Script: chrome:// Script: chrome://messenger/content/mailWindow.js:17messenger/content/mailWindow.js:17 " Anyone got any ideas how to correct this?

Modified by Wayne Mery

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Wayne Mery
Wayne Mery
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Start *Windows'* safe mode with networking enabled - XP http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx

Still In Windows safe mode, start thunderbird in safe mode - http://support.mozillamessaging.com/en-US/kb/safe-mode

Does problem go away? Please reply to let us know results.

willowbarn
willowbarn Question owner
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Hi, and thanks for getting back so quickly. Yes by running in both safe modes as suggested does appear to cure the fault. Regards

Wayne Mery
Wayne Mery
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In that case, (still in Windows safe mode) ... start Thunderbird normally 

   -- If problem is still gone, then cause is a program loaded during windows startup.  Possibilities include: antivirus SW, virus/malware, background downloads such as program updates
   -- If problem is NOT gone, then cause is likely a Thunderbird addon - eliminate them by disabling each one at a time in Tools | addons | extensions and restarting

- If results are unclear ... possibilities include temporary conditions such as contention from other running programs, downloads related to windows update, ...

Also see https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues and https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems

Let is know results please

willowbarn
willowbarn Question owner
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Went through in the order you suggested. It is really tedious but I eventually found the culprit.

McAfee virus and spyware scanning.

In the settings the function "Use Active Protection" was checked. Unchecked this and all is well. Thank you very very much.

Wayne Mery
Wayne Mery
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Chosen Solution

Thanks for the results feedback