What is this message mean? Exc in ev handl: Error: Bad NPObject as private data!

Exc in ev handl: Error: Bad NPObject as private data! Why do I get this message when browsing?

Troubleshooting extensions and themes
* https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes
Check and tell if its working.

Similar Messages

There were kinds of message as follow, "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function." or another message such, "Exc in ev handl: Error: Bad NPObject as private data!" How to solve those?

When open Firefox to surf in internet, those messages always appear.

This issue can be caused by the McAfee Site Advisor extension
* https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in Safe Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
* Don't make any changes on the Safe mode start window.
* https://support.mozilla.com/kb/Safe+Mode

After updating Firefox I am getting this message any time I do anything "Exc in ev handl:Error: Bad NPObject as private data"

This error happens each time I use Mozilla. especially when I click on an extension or try to work in any of my e-mail accounts (Yahoo, Gmail, or RCN). Sometimes I am able to continue by just clicking OK and other times it prevents me from completing my task. This started happening right after I downloaded and installed your latest version of Firefox. I see others are having the same problem. Error message is "Exc in ev handl:Error: Bad NPObject as private data"

That issue can be caused by the McAfee Site Advisor extension
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

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
-Kipp

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

I rcvd the following error : Exc in ev handl: Error: Bad NPObject as private data! What cause this problem ? Thanks

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

Exc in ev handl: Error: Bad NPObject as private data! what is this an how do i get rid of it...

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

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.

Since I upgraded my Firefox..whenever I click on a link i get this error message...Java Script Exc in ev handl: Error: Bad NPObject as private data! Then I have to click ok to get the page to open.

Since I upgraded my firefox..I get this box most of the time when I click on a link to go to another page...
Java Script
Exc in ev handl: Error: Bad NPObject as private data! Then I have to click ok to get the page to open.

That issue can be caused by the McAfee Site Advisor extension
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

A message will pop up (Exc in ev handl: Error: Bad NPObject as private data!) and the tab I was on will close out and reopen in a new window. Why is it happening and how do I stop it?

Okay, I will have a window open with 4 tabs open. At first, everything is fine, but after a day or so, a message will pop up on screen saying "'''Exc in ev handl: Error: Bad NPObject as private data!'''" and after you close it out, the tab you were on will close and reopen in it's own window. I then have to shut down all both old and new windows and open a new window with my original 4 tabs again. It will work fine until a few days pass and it starts over again.

This issue can be caused by the McAfee Site Advisor extension
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

Why, when have more than one tab on Firefox it generates message Exc in ev handl: Error: Bad NPObject as private data! which then opens each site in a new browser

I like to work with about 6 tabs open on Firefox and typically this has been absolutely fine. Starting around November 2011 each time I have multiple tabs open when I open a new gmail message, or open an order or any other action within an open page a message pops up that reads
Exc in ev handl: Error: Bad NPObject as private data!
then that site immediately opens in a new browser window.
I do not have this issue with Google Chrome or Internet Explorer but I would rather use Firefox. I ran McAfee an extra time thinking it might be a virus but that did not help. Any ideas?

That issue can be caused by the McAfee Site Advisor extension
* https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
* Don't make any changes on the Safe mode start window.
* https://support.mozilla.com/kb/Safe+Mode

Exc in ev handl: Error: Bad NPObject as private data! How do I ge rid of this?

Exc in ev handl: Error: Bad NPObject as private data! I get this error when opening and closing tabs. It only happens when using Firefox. I am running 7.0.1 on a 64 bit version of windows. While researching this problem I discovered thousands of people have the problem. This just started recently. No real fixes or causes have been found. One solution listed was to disable McAfee site adviser which I use and have no plans to remove. I really like Firefox but if I must choose between it and Site adviser I'll have to switch to another browser.

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.

I don´t get any Java Script referral on the: Exc in ev handl: Error: Bad NPObject as private data, what is then my problem?

Exc in ev handl: Error: Bad NPObject as private data
This is the pop up that keeps annoying me in FF. You send me the question: The box that the error is in says something about JavaScript?
I´m answering NO!

This issue can be caused by an extension that isn't working properly (McAfee Site Advisor).
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

Can anyone fix this issue? It is both on my home and office computer anf from online blogs it seems to be a large problem for many. Exc in ev handl: Error: Bad NPObject as private data!

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

Disable "McAfee Site Advisor" extension which was just updated to 3.4.0, which probably took it out of the addons block list.
* "Ctrl+Shift+A" > find McAfee Site Advisor and use "Disable", and then restart Firefox.
* Do a Google Search no problem
* It seems that if you re-enable Site Advisor again, and restart Firefox you are okay. At least you know where to look if you get the error again or Google searches slow down.

I am gettng the following popup when using firfox as my browser: Exc in ev handl: Error: Bad NPObject as private data!

In the past few days I have been getting the following popup when I use firefox as my browser: Exc in ev handl: Error: Bad NPObject as private data!
I assume it came from your latest update. I have windows vista with a 64 bit processor, and I am using the latest version of firefox. I checked to see if I was getting the same error message with explorer and I am not. It appears to be some sort of conflict with java script. Can this be corrected?

re: recommendation -- "Remove McAfee Site Advisor and other extensions/plugins reported in the following lists of Blocked/Problematic extension: "
NO -- I use it to protect my surfing! Why must FireFox insist on constantly breaking 3-rd party vendor apps!?! Even IE doesn't do this.
For all the ballyhoo about FF and how great it is -- it ISN'T when it comes to how it supports other companies apps. (RealPlayer, Google, McAfee, etc.)
Shame on them. I shouldn't have to give up functionality, and in this case protection -- just to use FF

Error msg received on opening tab: Exc in ev handl: Error: Bad NPObject as private data!

Very simple- the following error message appears when I open a new tab, either with a web page or blank:
Exc in ev handl: Error: Bad NPObject as private data!

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.

Elke keer Exc in ev handl: Error: Bad NPObject as private data! na firefox 7

Na upgrade firefox 7 telkens de volgende mededeling:
Exc in ev handl: Error: Bad NPObject as private data!
Wat kan hieraan gedaan worden? Is het verstandig firefox 6 te gebruiken?

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

What is this message mean? Exc in ev handl: Error: Bad NPObject as private data!

Similar Messages

Maybe you are looking for