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

Exc in ev handl: Error: Bad NPObject as private data!

  • 2 replies
  • 28 have this problem
  • 2 views
  • Last reply by Mediabum

more options

Just updated to FF 3.6.23. Running on Vista Business Premium. Now, each time FF accesses a new page, it displays this error message: "Exc in ev handl: Error: Bad NPObject as private data!" with an OK button to be clicked before page will load. EVERY PAGE.

Just updated to FF 3.6.23. Running on Vista Business Premium. Now, each time FF accesses a new page, it displays this error message: "Exc in ev handl: Error: Bad NPObject as private data!" with an OK button to be clicked before page will load. EVERY PAGE.

Chosen solution

see http://kb.mozillazine.org/Problematic_extensions and then the problem statement and solution for Site Advisor.

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

see http://kb.mozillazine.org/Problematic_extensions and then the problem statement and solution for Site Advisor.

more options

Hi Ritchie. I've uninstalled McAfee Site Advisor and all is well. I've also bookmarked that "problematic extensions" page in case similar questions arise in the future. Thanks for the prompt and effective reply.