Firefox does not work! Help please...

At first I just receive this message:

EXC in ev handl: error: Bad NPObject as private data!

But it has always worked, I was able to find and continue to use the internet. Then I disabled the add-on of McAfee, and the error has ceased to appear.

But then two days ago I got this new error:

"Unable to connect".

Firefox can't establish a connection to the server www.google.com.au

 The site could be temporarily unavailable or too busy. Try again in a few
   moments.
 If you are unable to load any pages, check your computer's network
   connection.
 If your computer or network is protected by a firewall or proxy, make sure
   that Firefox is permitted to access the Web."

And now I can't use Firefox at ALL. Every time I open firefox, I get above error. I tried a few things suggested, I uninstalled and reinstalled, I tried to disable all add-ons
I rebooted and checked the proxy settings, and I made sure that the firewall is ALLOWING firefox. Nothing has worked yet. Always impossible to use firefox.

It is not my internet connection because I am currently using Internet Explorer and its working fine.

Please see the solution in http://kb.mozillazine.org/Problematic_extensions
"McAfee Site Advisor.

(Windows): for best results, you need to uninstall McAfee Site Advisor from Control Panel > add/edit programs (programs and features). Restart the system. Then http://www.siteadvisor.com/ reinstalling and reboot the system. Installation of other waste (crapware) suggested applications.

Please mark "resolved" a response that will better help others with a similar problem - hope it was her.

Tags: Firefox

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