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Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

  • 1 reply
  • 4 have this problem
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  • Last reply by cor-el

maxnervos
maxnervos
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Can't logon to td.com: 400 Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

Can't logon to td.com: 400 Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

All Replies (1)

cor-el
cor-el
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  • Top 10 Contributor
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This issue can be caused by corrupted cookies or blocked cookies.

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

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings).

"Remove the Cookies" for websites that cause problems:

  • Settings -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Settings -> Privacy & Security
    Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window