This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

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

Firefox, Yahoo - When I click a link on home page an error message comes up. What is wrong? - "Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit".

  • 3 replies
  • 11 have this problem
  • 3 views
  • Last reply by BertF

more options

IMac using Firefox 8 and Yahoo as home page. When I click a news link it brings up the following error message - "Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit". When I use Safari there isn't any problem.

IMac using Firefox 8 and Yahoo as home page. When I click a news link it brings up the following error message - "Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit". When I use Safari there isn't any problem.

Chosen solution

I did as b^24554 and cleared out the cache and all cookies and the problem seems to be solved. Thanks.

Read this answer in context 👍 0

All Replies (3)

more options

That issue can be caused by corrupted cookies.

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

"Clear the Cache":

  • Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox > Preferences > Privacy > Cookies: "Show Cookies"
more options

I cleared out the cache and some cookies but that didn't help. I ended up clearing out all the cookies and that seems to have corrected the problem. Thank you.

Modified by bsquared4554

more options

Chosen Solution

I did as b^24554 and cleared out the cache and all cookies and the problem seems to be solved. Thanks.