Unable to Sign in to Costco.com
I am unable to sign into Costco.com using Firefox. I get an error message:
"Bad Request - Header Field Too Long HTTP Error 400. A request header field is too long."
Turning off all extensions didn't help. Opening a private browsing window DID work. Using Chrome DID work.
Alle Antworten (2)
Try "Clear cookies and site data" from the padlock icon in the address bar.
That worked. What an easy way to clear cookies and site data for just this site! Thanks! :)