Exc in ev handl: Error: Bad NPObject as private data!Why do I get this? and how do I get rid of it. I am a senior gal who needs easy help. Thank you.

It just occurs when it wants to.

This was the answer. Thank you so much for the easy to follow instruction you left for me.

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    This issue can be caused by the McAfee Site Advisor extension
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
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  • What is this message mean? Exc in ev handl: Error: Bad NPObject as private data!

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    This issue can be caused by the McAfee Site Advisor extension
    *https://community.mcafee.com/message/203466
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • Every time I switch tabs I get this message "Exc in ev handl: Error: Bad NPObject as private data!" What do I do to stop this message from coming up??

    If I open up firefox & have more than one tab I get this message "Exc in ev handl: Error: Bad NPObject as private data!" whenever I switch tabs. What should I do to fix this problem?? Thanks for your prompt attention to this matter
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    This issue is caused by the McAfee Site Advisor extension
    *https://community.mcafee.com/message/203466
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

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    Whenever opening a new link, rcvd the following error : Exc in ev handl: Error: Bad NPObject as private data!

    this issue can be caused by the McAfee Site Advisor extension. See:
    * https://community.mcafee.com/message/203466
    * https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes

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