Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Przeszukaj pomoc

Unikaj oszustw związanych z pomocą.Nigdy nie będziemy prosić Cię o dzwonienie na numer telefonu, wysyłanie SMS-ów ani o udostępnianie danych osobowych. Zgłoś podejrzaną aktywność, korzystając z opcji „Zgłoś nadużycie”.

Więcej informacji
Wątek został zarchiwizowany. Jeśli potrzebujesz pomocy, zadaj nowe pytanie.
Zarchiwizowany

Getting "400 Bad Request Request Header Or Cookie Too Large" when I try to open US Bank login page.

Firefox Rozwiązywanie problemów
cor-el odpowiedziano
rjcmrn
rjcmrn

When attempting to navigate to the US Bank online banking login page ("https://onlinebanking.usbank.com/Auth/Login") I get the following error: "400 Bad Request Request Header Or Cookie Too Large". I only started getting this error since the latest Firefox update...no problems prior. Also, I have no problem navigating to the page using other browsers (Chrome, etc.).

When attempting to navigate to the US Bank online banking login page ("https://onlinebanking.usbank.com/Auth/Login") I get the following error: "400 Bad Request Request Header Or Cookie Too Large". I only started getting this error since the latest Firefox update...no problems prior. Also, I have no problem navigating to the page using other browsers (Chrome, etc.).

Wszystkie odpowiedzi (2)

FredMcD
FredMcD

I ended up at https://onlinebanking.usbank.com/Auth/Login with no problem.

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

cor-el
cor-el
  • 25 najaktywniejszych autorów
  • Moderator

This issue can be caused by corrupted cookies or cookies that are blocked.

  • check the permissions for the domain in the currently selected tab in "Tools -> Page Info -> Permissions"

Clear the Cache and remove the Cookies from websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" from websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Manage Data

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

If clearing cookies didn't help then It is possible that the cookies.sqlite file in the Firefox profile folder that stores the cookies got corrupted.

  • rename/remove cookies.sqlite (cookies.sqlite.old) and if present delete cookies.sqlite-shm and cookies.sqlite-wal in the Firefox profile folder with Firefox closed in case cookies.sqlite got corrupted.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.