when I quit Firefox I get "ReferenceError: b is not defined". How do I fix this?
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.
Wšě wotmołwy (1)
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.