When I try to start Firefox I receive this message: "Exc in ev handl: TypeError: this oRoot.enable is not a function" What's wrong?

When I try to start Firefox I receive this message: "Exc in ev handl: TypeError: this oRoot.enable is not a function" Once I close the error message Firefox starts up immediately.

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

Similar Messages

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 occasionally get error messages popping up when I run Firefox 7. The messages often say "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function". does anyone know how to fix this?

After I downloaded and installed the latest version of Firefox, I started getting these error messages every so often when I launched the browser. These messages will usually pop up every third time or so I open the browser and pop up on every page, sometimes multiple times, and I have to clear them away before I can do anything on the page. The message usually reads "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function". Is there any thing we can do to fix this?

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 continuously am receiving this pop-up, "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function." What is wrong and how can I fix it?

I was receiving a lot of trash emails and such and cleared all my cookies and history. Now I am getting this pop-up and it is interferring with my internet usage, "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function." What is it and how can it be fixed, deleted, gotten rid of, etc. Thank you

Hi. SiteAdvisor is usually located in Firefox's add ons extensions. Hope this helps.

When I try to access my bookmarks I get the Exc in ev handl :TypeError this o.Root.enable is a not a function. I havn´t done anything that could give me a clue about this pop-up.

I unistalled and reinstalled Firefox to see if I could get my bookmarks back. But that didn´t work. I still can not access my Marcadores.

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

When I try to start Firefox, I get a message that it is already running but not responding and I can't run another Firefox at the same time. I uninstalled and reinstalled. No change. Tried various other suggestions. Help!!

When I try to start Firefox, I get a message that it is already running, but not responding and that I should close it before trying to run another Firefox. But I cannot find a way to close Firefox program that is not running as far as I can see. I tried uninstalling and reinstalling Firefox, but that did not work. I've tried various other things, but no luck. I thought programs should stop when the computer is turned off, but that didn't work either.

How are you opening the Profile Manager?
*http://kb.mozillazine.org/Profile_Manager
Sounds that Firefox is still or already running. 
See:
*http://kb.mozillazine.org/Kill_application

No longer able to add bookmarks on Yahoo Toolbar, Error message: "Exc in ev handl: TypeError: this.oRoot.enable is not a function" started when I updated to Firefox 6.0

Since updating to Firefox 6.0 I am no longer able to add bookmarks on Yahoo Toolbarl. I receive the following Java Error message: "Exc in ev handl: TypeError: this.oRoot.enable is not a function." When I hit the OK button in the error message it opens up "Add a Bookmark" and when I attempt to add the bookmark there I get this error message: "A problem occured while trying to save the bookmark. Please try again later."
Is this a comparability issue that you are not aware of? Below are the versions of Firefox and Yahoo Toolbar that I currently have installed:
Firefox: 6.0.02
Yahoo Toolbar: 2.4.0.20110815110908
Windows XP, Service Pack 3
I am having this issue on my laptop and desktop. Since I use both computers the Yahoo toolbar has been great for having my bookmarks available on both computers at the same time but no I don't have that feature. I'm told that Google's toolbar also doesn't work either.
Do you guys do any testing or Quality Assurance testing before releasing these versions?

Add-ons are the responsibility of their authors. McAfee does not even put their extension on http://addons.mozilla.org you had to install it from their site.
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.

When I try to open Firefox I get a message saying it is already open. However it is not open and i cannot access Firefox

When I try to open Firefox I get a message saying it is already open. However it is not open and i cannot access Firefox

See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use
* https://support.mozilla.com/kb/Firefox+is+already+running+but+is+not+responding
If it happens after you've closed Firefox and want to restart the see these:
See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
See "Firefox hangs when you quit it":
*https://support.mozilla.com/kb/Firefox+hangs

When I try to start Firefox, I get a message saying that Firefox is already running and cannot be re-started, so close down and reboot.

Following an upgrade of my OS from XP to Vista, I tried to point the new installation at my old profile. Now when I try to start FF, I get a message saying that it is already running and I should reboot to clear the problem. I've done that but the problem remains. I have uninstalled firefox and reinstalled v4 beta. The problem remains. Any ideas?

OK, I had moved the profile file inside the profile folder which was created when I installed FF, to the main FF folder. I then took the equivalent file which existed under XP before my upgrade to vista, and moved it into the new Profile folder. That's when I hit the problem described in the initial question.
So, what I did following Tony's response was to move the bookmarks password and cookies files into the profile created on the install. I then moved that file into the profile folder and moved the one I'd saved from XP, out to the main FF folder.
Started FF and voila! All working fine. Thanks for your help.

When i try to start firefox i get a message that says proxy server refusing conections

had problems last night macafee said something was trying to download on my computer did i want t allow it i said no then everything froze up for a few minutes when everything was closed and i try to restart firefox i got the message proxy server refusing to connect i tried toturn of and turn back on my computer but still got the same message tried to restore system but only date i was given was 7-7-2010 so that did not help don't know what to do to fix problem
== This happened ==
Every time Firefox opened
== july 7th about 6:00pm

Steps to resolve this issue:
1. Open Firefox
2. Go to '''Tools>Options>Advanced>Network>Settings'''
3. Check '''No Proxy'''

Since firefox upgraded to the latest version I have not been able to use it without it crashing and repeatedly giving me this error message"Exc in ev handl: TypeError: this.annotatePage is not a function' " What can I do about this?

The box that the above message is contained in has heading [JavaScript Application] I am at my wit's end with this. Firefox won't even open now and I am also getting this error message "Exc in ev handl: Error: Bad NPObject as private data!" Also in a box with [JavaScript Application] as a heading.

It appears McAfee Site Advisor is conflicting with several other Firefox Add-ons, causing this error message. McAfee Site Advisor has been causing problems in Firefox for some time. You can disable McAfee Site Advisor and test. Disabling Site Advisor should not affect the functioning of McAfee; you should still be protected. See the information below about a built-in function in Firefox that is similar to the function of Site Advisor.
*https://community.mcafee.com/message/203211
*https://support.mozilla.com/en-US/questions/858623
*http://forums.informaction.com/viewtopic.php?f=7&t=7023
Also see: https://addons.mozilla.org/en-US/firefox/blocked/i25
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''
Firefox has a built-in component to help keep you from entering '''''known''''' malware and phishing sites
*'''''Safe Browsing''''': http://www.mozilla.com/en-US/firefox/phishing-protection/
*'''''Sample''''' warning screens:
**http://www.mozilla.com/firefox/its-a-trap.html
**http://www.mozilla.com/firefox/its-an-attack.html

When I try to open firefox, I receive a message to close the previous one or restart my computer. I have rebooted a dozen times and I still receive the message.

I cannot open firefox. I receive a message box that states it is already running. It tells me to restart my machine and/or close firefox.

You might find your solution in [http://kb.mozillazine.org/Profile_in_use this article].

When I try to start Firefox, I get a message "Welcome to nginx!!" and then I can't do anything. How can I get rid of this?

Whatever this is makes the loading of Firefox very very long and then won't let me go to Google.. I have to go to bookmarks and find a Google one and go that that and then proceed to use Google. I have tried but can't seem to get rid of it. I really need help, this is driving me nuts.

Whatever this is makes the loading of Firefox very very long and then won't let me go to Google.. I have to go to bookmarks and find a Google one and go that that and then proceed to use Google. I have tried but can't seem to get rid of it. I really need help, this is driving me nuts.

When I try to open Firefox I receive a message "The connection was reset". Firefox will not open. I uninstalled firefox and reinstalled it but same problem exists. I cannot open firefox. How do I correct this problem?

Using HP windows 7 64 bit PC. All other browsers working properly.

[http://kb.mozillazine.org/Error_loading_any_website Error loading websites]
thank you

When I try to start Firefox I get Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

I get this message when I try to start Firefox after first logging on after turning on the computer.
Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.
Have rebooted. Works when Administrator logs in, just does this in my user profile. Have also re-intalled. Mo change in my User account.
Firefox was working fine for the last 3 1/2 years. Any suggestions?

Firefox is "hanging at exit" when you exit/quit Firefox. 
#Stop the Firefox process:
#*[http://kb.mozillazine.org/Kill_application Mozillazine - Kill application]
#*Windows 7 users click [http://www.techrepublic.com/blog/window-on-windows/reap-the-benefits-of-windows-7s-task-manager/2576 here]
#*Mac users: http://techheavy.com/2011/02/the-mac-task-manager/
#Why Firefox may hang:
#*[http://support.mozilla.com/en-US/kb/Firefox+hangs Firefox hangs] (see Hang at exit)
#*[http://kb.mozillazine.org/Firefox_hangs Firefox hangs (Mozillazine)] (see Hang at exit and Closing Firefox properly)
#*[https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding Firefox is already running but is not responding]
#Use Firefox Safe Mode to find a problem with an Extension or Plugin:
#*Don't check anything when entering Safe Mode, just continue
#*If the problem does not occur in Safe Mode it is probably and Extension or Plugin causing the problem
#*See:
#**[[Safe Mode]] and [http://kb.mozillazine.org/Safe_Mode Safe Mode (Mozillazine)]
#**[http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes]
#**[http://support.mozilla.com/en-US/kb/Troubleshooting+plugins Troubleshooting plugins]
#**[http://support.mozilla.com/en-US/kb/Basic+Troubleshooting Basic Troubleshooting]
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''

When I try to start Firefox I receive this message: "Exc in ev handl: TypeError: this oRoot.enable is not a function" What's wrong?

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