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 Open after your update my costco app wont work 0 have this problem Firefox Blocked application/service/website asked 5 days ago flees9241 10/29/26, 12:28 AM after you update my firefox app now my Costco app wont work after you update my firefox app now my Costco app wont work I have this problem, too You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.