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Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

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New User

Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

Here is the following line of the bad request notice:

Cookie: KHcl0EuY7AKSMgfvHl7J5E7hPtK=GHTVLUGh5zG6ks5hQWppXUzKMtAShup_fASN8YQad3cnqeDew0f_tkIm3U_5XpNp-wxqAdKqenee2IrN; cookie_check=yes; consumer_display=USER_HOMEPAGE%3d2%26USER_TARGETPAGE%3d0%26USER_FILTER_CHOICE%3d7%26BALANCE_MODULE_STATE%3d1%26GIFT_BALANCE_MODULE_STATE%3d1%26LAST_SELECTED_ALIAS_ID%3d0;

< removed excessive cookie data - c>

Wow! I never saw the whole notice.

This started happening right after Firefox automatically updated itself to 6.0.1.

I depend on Paypal to run my business. not being able to access the site is a huge problem.

Please help.

Thank you,

~ David

1 ACCEPTED SOLUTION

Accepted Solutions
Site Moderator

Re: Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

This issue can be caused by corrupted cookies.

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"
4 REPLIES
Site Moderator

Re: Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

This issue can be caused by corrupted cookies.

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"
New User

Re: Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

Thank you Cor-el! It seemed to do the trick

~ David :-}>

Site Moderator

Re: Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

You're welcome

New User

Re: Paypal returns 400 Bad Request notice: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

Thank you cor-el: The second suggestion worked after I restarted Firefox!