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I upgraded to Firefox 4. Whenever I click on the firefox icon, msg appears - "ug-in object: TypeError: id] is undefined". Only when I click OK will Firefox open up and then work as per normal. How do I get rid of error msg.

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  • Last reply by TonyE

FirefoxHp
FirefoxHp
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I use an iMac OS X 10.6.7. After I upgraded to Firefox 4, this problem occurs.

Whenever I click on Firefox icon, message appears - "ug-in object: TypeError: id] is undefined". Only after I click "OK" in the error message, does Firefox open it and I can use it to browse as per normal.

I notice it took a long time to open up some websites.

I use an iMac OS X 10.6.7. After I upgraded to Firefox 4, this problem occurs. Whenever I click on Firefox icon, message appears - "ug-in object: TypeError: id] is undefined". Only after I click "OK" in the error message, does Firefox open it and I can use it to browse as per normal. I notice it took a long time to open up some websites.

Modified by FirefoxHp

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TonyE
TonyE
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That indicates that you are using an add-on that is not compatible with Firefox 4. For details of how to troubleshoot this to find out what one is causing the problem see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes