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
Similar Messages
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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
-KippThis issue is caused by the McAfee Site Advisor extension
*https://community.mcafee.com/message/203466
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes -
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 <u>[[Safe Mode]]</u> 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 -
It's a Java Scrip error window......
Try the Firefox SafeMode to see how it works there. <br />
''A troubleshooting mode, which disables most Add-ons.'' <br />
''(If you're not using it, switch to the Default Theme.)''
* You can open the Firefox 4/5/6/7 SafeMode by holding the '''Shft''' key when you use the Firefox desktop or Start menu shortcut.
* Or use the Help menu item, click on '''Restart with Add-ons Disabled...''' while Firefox is running. <br />
''Don't select anything right now, just use "Continue in SafeMode."''
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shft key) to open it again.''
If it is good in the Firefox SafeMode, your problem is probably caused by an extension, and you need to figure out which one. <br />
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes -
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 <u>[[Safe Mode]]</u> 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 -
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 -
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 <u>[[Safe Mode]]</u> 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 -
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.
<br><small>Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.</small> -
This error message recently started popping up periodically on web pages that seem to have graphics or photos. There have been recent Adobe updates, but I can't verify which ones and whether they are the issue. On the other hand a recent Firefox update 7.0.1 indicated it was incompatible with a number of plug-ins? Could that be the source. Incidentally after I receive the message: it comes on twice, I am returned to a previous screen without further problem.
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.
<br><small>Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.</small> -
that's about it!
McAfee Site Advisor 3.4.0 just came out of the addons blocklist, and you have SiteAdvisor and even though that is the current; nevertheless, you should uninstall it and reinstall it as noted in https://community.mcafee.com/message/203466 for a fresh version with only current files.
Also refer to http://kb.mozillazine.org/Problematic_extensions relating to McAfee Site Advisor 3.4.0 for more specific instructions.
<br><small>Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.</small> -
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.
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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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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 -
What do I do when I receive " Evc in ev handl: Error: Bad NPObject as private data!:
I do not know more details. I have been receiving this message and originslly thought I had a virus. But that cleared. I do not know where to go from here.
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
Start Firefox in <u>[[Safe Mode]]</u> 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 never had this problem till had to down load the new Firefox, now i get this message rather closing a page or opening it..
Exc in ev handi: Error: Bad NPObject as private data. what can i do//????Disable McAfee siteadvisor and check the problem still persist or not?
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