Thunderbird:Testing:Antivirus Related Performance Issues: Difference between revisions

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'''This article is not just about performance issues.'''  Antivirus software can also [[Thunderbird:Testing:Antivirus_Related_Performance_Issues#symptoms|cause odd behavior (bad, incorrect or unusual), and crashes (random or consistent, infrequent or frequent)]].  
'''This article is not just about performance issues.'''  Antivirus software can also [[Thunderbird:Testing:Antivirus_Related_Performance_Issues#symptoms|cause odd behavior (bad, incorrect or unusual), and crashes (random or consistent, infrequent or frequent)]].  


<br><br>The information below is from users like you. These are not the result of organized testing.  
<br>The information below is from users like you. These are not the result of organized testing.  
 
<br><br>If you have a problem that is not listed here, please help other users by adding your experience to the list. (create a wiki account, and select edit to change the wiki)


<br>If you have a problem that is not listed here, please help other users by adding your experience to the list. (create a wiki account, and select edit to change the wiki)


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= Symptoms  =
= Symptoms  =


Possible symptoms, which can be consistent or random:
Possible behaviors:
* Mild to severe poor performance
* Mild to severe slowness
* Not able to get new mail
* Not able to get new mail
* OS hangs or crashes
* OS hangs or crashes
* Images not displaying


... while doing the following:  
... while doing the following:  
* Starting Thunderbird
* Starting Thunderbird
* Images not displaying
* Opening file attachments  
* Opening file attachments  
* Selecting a different folder
* Selecting a different folder
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* Replying to a message / Sending a message
* Replying to a message / Sending a message
* Downloading or attempting to get new messages (receiving mail)
* Downloading or attempting to get new messages (receiving mail)
* Initial mailbox indexing when upgrading to 3.0.1 from a previous version
* Initial mailbox indexing for global search


= My Problem Cannot be Caused by Antivirus =
= My Problem Cannot be Caused by Antivirus =
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= First Steps =
= First Steps =


'''The quickest way to test in impact of antivirus and other software on Thunderbird is to [http://bit.ly/1MU6eMa start Windows in safe mode], or [https://support.apple.com/en-us/HT201262 start Mac in safe mode].'''  If problem is gone in safe mode, then the cause is often antivirus software.
'''A quick way to test the impact of antivirus software is to [http://bit.ly/1MU6eMa start Windows in safe mode], or [https://support.apple.com/en-us/HT201262 start Mac in safe mode].'''  If problem is gone with operating system in safe mode, then the cause can be antivirus or some other software loading during the OS startup.


'''*NOTE, disabling antivirus through AV settings has proven over the years to not be a perfect or sufficient test. Sometimes it works, but the only test that can be fully trusted is OS safe mode.'''
'''*NOTE, disabling antivirus using AV settings has proven over the years to not be a perfect or sufficient test. Sometimes setting changes work, but often does not and so the only test that can be fully trusted is OS safe mode.'''


'''*NOTE, if you altered the default profile location, or location of Thunderbird accounts, to store mail somewhere on a non-standard location, you MUST change your antivirus software to exclude these nonstandard locations.'''
'''*NOTE, if you altered the Thunderbird file locations (Thunderbird profile location or mail folders) then you MUST change your antivirus software to exclude these nonstandard locations.'''


= Testing Suggests My Problem is Caused by Antivirus Software =
= Testing Suggests My Problem is Caused by Antivirus Software =
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