This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

I keep getting the following error msg Exc in ev handl: Error: Bad NPObject as private data. I'm using FF 6.02

  • 1 பதிலளி
  • 48 இந்த பிரச்னைகள் உள்ளது
  • 1 view
  • Last reply by David McRitchie

I'm gettting the following error msg. I'm using FF 6.02 Exc in ev handl:Error:Bad NPObject as private data! (Javascript application)

I'm gettting the following error msg. I'm using FF 6.02 Exc in ev handl:Error:Bad NPObject as private data! (Javascript application)

All Replies (1)

Please see solution in http://kb.mozillazine.org/Problematic_extensions for "McAfee Site Advisor".

(Windows): For best results you should uninstall McAfee Site Advisor from Control Panel > add/change programs (Programs and Features). Reboot the system. Then Reinstall from http://www.siteadvisor.com/ and reboot the system. When installing refuse other suggested (crapware) applications.


Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.