In addition to the adobe flash plugin crashing, i keep getting this javascript error: Bad NPObject as private data!

I am having major issues right now! My browser has slowed to a crawl. The adobe flash plugin keeps crashing while im watching vids and now I am getting this javascript error msg: Bad NPObject as private data!...I am getting this msg ALL THE TIME
What are the remedies?

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.

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When I try to print coupons, I get a message that the coupon printer plugin has crashed. I've tried following the instructions for when the Adobe Flash plugin crashes, but reloading the page does not work. Just sits there for 5 minutes doing nothing.

Happens when going to print.coupons.com. I click the "learn more" button on the message that the plugin has crashed, and I get sent to the Adobe Flash plugin crash info page on Firefox. They say just to reload the page. There is a button for this. I click it and the page tries to reload for 5 minutes before freezing.

https://support.mozilla.com/en-US/kb/Firefox+crashes#Getting_help_with_your_crash

I cannot send the crash report about the adobe flash plugin crash to Mozilla. It will not let me send!

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Try here > Troubleshooting the photo uploader

On Paltalk Express,the Adobe Flash plugin crashes when logging in

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== URL of affected sites ==
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I'm running on Ubuntu 9.10 with Firefox 3.6.10.
thanks to the first post, i didn't downgrade Firefox to 3.5 but i did download 3.5.
Here is what i did:
I downloaded 3.5.13 : http://www.mozilla.com/en-US/firefox/all.html
The link to 3.5.13 is on the right under Other Versions.
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I got the English version. The name of the file is : firefox-3.5.13.tar.bz2
Once downloaded, i opened the location of the file( Downloads folder) and opened the package by double clicking on it. YOur 9.10 should be able to recognize bz2 format and you will see a folder called Firefox in the archive.
Simply, extract the folder and place it on your desktop.
IF you want to run FF3.5.13, close all firefox browsers that are already opened.
Once this is done, Open the folder "Firefox" that you just extracted and double click on the file firefox. It should ask you to run, display, run in terminal... simply press run.
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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

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 do I get the following msg's on startup start Firefox? (1) Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function; (2) Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function; (3) Exc in ev handl: Error: Bad NPObject as private data!

I get the following msg's. This happening more often, and when I back out to restart it may take a couple of times so that I do not get the error msg's?
Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function
Exc in ev handl: Error: Bad NPObject as private data!

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

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

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

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

Why does the adobe flash plugin crash whenever I try to view a video file?

When attempting to view video files, except youtube, the Adobe Flash plugin always (this is consistent) crashes. I have sent numerous crash reports. I have since the problem first occurred updated firefox at least twice and Adobe Flash has been updated the same number of times. I have not always had this problem, but now it is recurring. Note: the plugin does not crash if I use IE.

hi WDWPhishFan,
Have you looked at [[The Adobe Flash plugin has crashed]] and [[Opening PDF files within Firefox]]?
The first article has a lot of good troubleshooting steps that might help. The second article actual lists a couple of plugins that can be used for opening PDF files. I'd give both of them a try just in case.
Hopefully this helps!

Everytime I attempt to use Facebook's Flash Bulk uploader my Adobe Flash Plugin crashes. It does this on Firefox, Chrome and IE9 All of which are up to date. What is the issue here?

Ive restored any changes my Anti-virus has made...
Ive uninstalled and reinstalled flash, firefox etc.
My flash plugin works for everything else...

I have the same problem on Firefox 29.0.1 on flash NPSWF32_13_0_0_214 (running windows 7, 64 bit)..
Many pages I go to (cnn.com for example) stops responding then a couple of seconds later I get a popup that says , if I click continue a couple of times it finally starts responding! Just started a couple of weeks ago! (Have tried turning off hardware-exceleration for flash, but doesn't seem to have an effect

Having had the Adobe Flash plugin crash I tried to uninstall firefox to reinstall it but it says it is running but there is not trace of it - windows7

Using control panel - uninstall - it says it cannot proceed until Firefox closes. I can find no sign of it running but it must be somewhere.

A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, maybe after detecting changes (update) to the Firefox program.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.
See [[Firewalls]] and http://kb.mozillazine.org/Firewalls
http://kb.mozillazine.org/Browser_will_not_start_up

Why do I get the following error msg's: (1) Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function (2) Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function (3) Exc in ev handl: Error: Bad NPObject as private data!

it is happening more and more often when I start Firefox, and it takes up to four times of restarting to stop getting the error msg's.

this does not do any good if it is not reviewed by a staff Tech.

Starting today, I am getting the following (Javascript Application) message whenever I open or close a tab in Firefox "Exc in ev handl: Error: Bad NPObject as private data!"

The information in the question window is pretty complete. I did go in and check my latest version of Java and it is Java 6 Update 21, installed in July of this year.

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

In addition to the adobe flash plugin crashing, i keep getting this javascript error: Bad NPObject as private data!

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