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After latest version of Firefox was installed, every time a new page comes up, I get the error message: Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function

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A Java script application box appears with the statement "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function" comes up. I have to close this error box before I can do anything on the page.

A Java script application box appears with the statement "Exc in ev handl: TypeError: oSAPlg.oRoot.log is not a function" comes up. I have to close this error box before I can do anything on the page.

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Probably caused by a slightly incompatible extension.

http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

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This issue can be caused by the McAfee Site Advisor extension, so start with that one.