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when I quit Firefox I get "ReferenceError: b is not defined". How do I fix this?

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TonyE replied 16 ปีก่อน
broschuck
broschuck

When I quit a box appears with a warning icon that states "ReferenceError: b is not defined". I have it on one computer but not on my other one despite the fact they are identical Mac Book Pro's.

When I quit a box appears with a warning icon that states "ReferenceError: b is not defined". I have it on one computer but not on my other one despite the fact they are identical Mac Book Pro's.

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TonyE
TonyE

This error is likely to be caused by an add-on not working properly. See troubleshooting extensions and themes for details of how to identify the add-on causing the issue.