Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

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

  • 1 eyano
  • 56 eza na bankokoso oyo
  • 1 view
  • Eyano yasuka ya TonyE

more options

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.

All Replies (1)

more options

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.