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

I keep getting this message at Yahoo -Sorry, Bad Request. Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

  • 5 ŋuɖoɖowo
  • 72 masɔmasɔ sia le wosi
  • 214 views
  • Nuɖoɖo mlɔetɔ cor-el

more options

I keep getting this notice when on my Yahoo home page" Sorry, Bad Request. Your browser sent a request that this server could not understand.

Size of a request header field exceeds server limit.

I keep getting this notice when on my Yahoo home page" Sorry, Bad Request. Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

All Replies (5)

more options

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"
more options

Worked like a charm. Thanks so much!

more options

I have had problems with paypal on firefox AND Chrome. I've cleared the cookies on both numerous times. It does not solve the problem. It started on Chrome, so I just switched to Firefox..now it is doing on FF. I've had clearing the history/cookies work..and then that doesn't work.

Now I'm having to use IE (ugh) and wondering when it won't work next..sigh..

I use paypal for business so this is a real pain!

Desktop computer on home internet. DH not having problems on his computer, but he doesn't use paypal as much as I do either.

MW

more options

fwiw here is the message Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit. Cookie: Apache=10.74.8.38.1338485594278035; KHcl0EuY7AKSMgfvHl7J5E7hPtK=cicgZKkfGiq7Z8C38LT1IeasE8hC7YVCGJfVmRAjGrq4Z1wVbwvcTiMp5zQwXpzN6cJ6vsnh_IrGQtBU; cookie_check=yes; upct=9; VHzDQylDGxsX9ZzQOaL5x-ItYUu=rQ6m8IPfR-AWkLOl54kRC5FZi7JfaiKZC3_Fm2XRTeQhFB4t3OM7s2I2BD-mttbAX3Bc9fR0M8t4s-g8kV11wu2iecq; tkkUEuFUb_mahcIlS49RY52hwu8=a5QD2aryge5XJFXoYJTbOH8z5gBiwjNZAJKpU2ofv6Onp2zOhba1MewRSFLHXAgirGvr_sh8Bf1cCVhnjmrD6mpNHBsAvi-qGU1Dym; VmyeHxjTc5yWtKApgk8-f2SgjEC=SmDy-e8Ud5sw3iG8wOeqpsvPhatAYLN0NaBSyCqRw42V22RreW-4xxKloPHUHvplobUbEIYRu4xet-XV-i_bAvaupBC; IKYzoBx4ch5aGy_Nkxy0gcGopli=yAJVHzB-0sSv89xFMc8qq9WnPO_bq9F6ktpjaEhpXOyuQMQMviAJySFyyaM_Tl-f4HOnm73KuBWfV3P-QIJUxS6wbS9AyGja2lQd0ye_HzVYGDW6kUrCoXWKvq_nSTSEWnNGl74lw0x7TwUIuwxoeAHleaMXRFIAFTEDaW; bn_ec=%7B%22a%22%3A%22c%22%2C%22c%22%3A%221.A%26g%26s%22%2C%22d%22%3A%22https%3A%2F%2Fwww.paypal.com%2Fus%2Fcgi-bin%2Fwebscr%3Fcmd%3Dp%2Facc%2Frefund-done%26original_id%3DjUif57OWynV7mXr7ik6OqGqMiRwCj1R0O4kjpjcOecLFYNa7yvzIBT4QwSO%26refund_id%3Dq6H9ysDFv7syPB6O9qXYKVHDILWkmhhDoJpbkXLJsCA3JAvlS31jb16MeUO%22%2C%22r%22%3A%22https%3A%2F%2Fwww.paypal.com%2Fus%2Fcgi-bin%2Fwebscr%3Fdispatch%3D5885d80a13c0db1f8e263663d3faee8d0288a7fd2903afb85a5540fd44243d03%22%2C%22t%22%3A1338527005148%2C%22u%22%3A%221243117335248521244%22%2C%22dd%22%3A%22https%3A%2F%2Fwww.paypal.com%2Fus%2Fcgi-bin%2Fwebscr%3Fcmd%3D_rm%26nav%3D2%22%2C%22l%22%3A%22Request%20Money%22%2C%22at%22%3A%7B%7D%2C%22de%22%3A%7B%22ti%22%3A%22Your%20refund%20was%20successful!%20-%20PayPal%22%2C%22nw%22%3A67%2C%22nl%22%3A32%7D%7D; LUK7Pfp52e6Wl9z1HnhDAvuV6-S=RaPgd8TSPd3NH8RujUDMPHH013FJJzErTbB9abADBxZj6TcI3WkQOd6x22X5CTcvTMEYOm; 9JKIHYXItucVa0YQLJoKk2fMPdm=Xzpd2Ba-MUmGNsoew3ACL9iX_IHvQTP7ZsI78KmQPD17ILveSEWOCdjmx8pVo5LcbZPpEJ0zlGHaH8zOVufCmUGxlYhCA7-25caNgm; cookie_nav_is_vt_enabled=true; cookie_nav_is_uum_enabled=true; cookie_welcome=; IJQPpxUKHxhxfa54MW_XuMiJnH0=yJWQRafOAOBF9VsIFNY8JSDQyjBhfc41ATi0y1YwgrQ7iUFQuG6GeeN3crMSTEffvYomBeKJujllYbEmoghtSlLWu2MfuUPQXxAUwoNGBXC5jct14syFMru_AUAqPtjwSEvR4luPBvex6DC-nMEjWI9uyBav6GIRG_pB79xEIwFSI9uDv5uQs1qBlzN6mrZ4-bZ2EF5lKD4V5AcA0ab88jDI2-YshuuQB4BlrB5Wjj5RrREc6qEgxdXQYJj7KADabr2UHxGlT-4hHc2mCAKJg1QKTVHmA0fbf3WlhQc6iQyLADOwqavoXnnJBmqyEd8BD-KdeSjPYaTfoBwQlPODL-sNi3ZWmSygXqeoBkPfkmM_-s-4M-FXLRacZLKt1MjhKm60Z8K-BjQR93hvWJC8BYDxECSTFdFWK6geUVzYAiTD4FgJtirkTPbXCw5mKmaPbOLC2HhvDdo-LLsa8zVEgJkrDGVgb6JVnUo_mkuIfXwpYkZkqWt3zMa1ajZKcoEdEr9dd5rbvfYvMSyP8XVr75PK4Rpxl-vyandbb0xndUbi_7Mlw2nGJqwFv-tMVGm6jW43EylO__9Fod_K149fyb6wRQ5PTYs-bIq1mcTwLNKUSz8V_2w_AORzvHHquvLeTIJKlK_cBX1S8JaIikyRc5vRNCq8vXQVmMuFsppEI9uCpGQtjUQUZEd3xYvK5eT2thwtNW8d9PURCFuA9b-3-8EzPxQJ3iq0KkKMQcxPTBLwsucvAXPxlV-k5c5InpjpwZxhBwKqwliB2PHr3ju3MTUke00pbdz2Z_PZEhaYhedQgYdRABvbEgFfTzZYN24SJQvvBN5j5YREI022mNKvSE0P-3guqTqQKMUsIkl_KJI6zJGvz95lOBIwhhe7CBonKB5uX52Vt4uUafdiIxDnzlp8mfmdRz9hvm-4zr3EDy7xJD5zM-Yf0mU7D34whJuGTp-tmuKCBrD2zq6mWEE18tuv7JeGmpAV6RW0SRfQy8lWHYxjsDCtOP98Bk4YZIJd2v61me-OUn-y4HRCMuind9Va9KtJ492n4CErAOVycCEbQWrrITO6iMHE5VfB0pFcYhVRYRbYGcCX7GYw5TRswyvZVwWbe_xqvxgRGtpbDsML2Wy0XqKOLHKQildObbrTv1y63-DeLws9KnYPFjHNxMBr2G9VE6guO3YKlIkNp5VP5xMjjh5HJyN4yrZqinPe50cJLs3yzFOq7r5G5DxB1VacuCPxpCFb7Y5MlRdax_tOOdu8HgqFngA-zUxmn4YFXe8ofWC3LwkInFY--a-ApQL6LPbdMor-LAA96EIa8DNxqpYZbSHu2nxKO5qvzODtKIDcXTIKqRBmF8oeFVc5drf3mKomE8g6zU0MWiCZpPIbe1xXBL_8TjTnYp2qCD7GfeXbBnLTIjD3XhlR8DErbXwK_rQyKPIGdUCCvvc_SHMttbFUmPTajrRezlIcLcDRvZpu1uWAxYJ3P_oKzYMOtxXMNeVWONEbg-ldouI3Hu4L3NgmiviDo_wULTKklFO527JPC_whQ4_ojmS3AECDgeOYwLLG03Ysj87-dP95ZEi1qZ1rhysUsC14s2Gy_6Tt9RaJb_LZ4J3lifaoAE3yF5uNNQelejW6smkV_am6kWksgKr5Q9WZmftvJSBZqx-sjXVO9nbJOMYhv_9ZrSCXDmotfNAb6zN3VIqUEsGgxVi_jUSo6b0W8WlWVNLQ1kMOGYoUBMAM_uVuCGY9WvzsILrnfjDDQt6iJnEkSI6t9-DTv-vRH-zvXN6ziL4Hn-E47tOBqQaifFIy1NEDOVqLiB0BrQhCFCR_WS0kMRJF8fuGe3jm349SPHt6h6V95PTjrrKYKq-h2GR1ahMyzpjPwM0sfZks5f0L77HqSEn2cr7uAe_wXLn_x-q3-OPJQrgCRKdgj3d8MHgHtnscb0dJ4QVDf9W-zDd-MNucKP9AwEvrnwep6euME9a3Giu3xysveAqTImhqOhaluT-Gs517UlHBlt8jNfczjEJ_1R15n8DJP1r74KyMC8nBx-xqKjWRLWJjQPgwKa5PbrNncp3_yqC4xOcfRutXhz763RcxKZu6neb6qkBa4zXPjRl8GQEF3_BUnJeSYEYWwXeH; navlns=0.0; bn_u=1243117335248521244; ts=vreXpYrS%3D1433834101%26vteXpYrS%3D1339165124%26vr%3Da5cfa9a31370abe0d4c5bc95ff8cec63%26vt%3Dcc56e1e61370a49377342fe4fff0badc; tcs=Log In|submit.x; s_sess=%20SC_LINKS%3Dmf%253Asm%253Avt%253Atransaction%2520confirmation%255E%255ELog%2520Out%255E%255Emf%253Asm%253Avt%253Atransaction%2520confirmation%2520%257C%2520Log%2520Out%255E%255E%3B%20s_cc%3Dtrue%3B%20s_ppv%3D0%3B%20tr_p1%3Dlog%2520in~%255B1%255D%3B%20v31%3Dlog%2520in%3B%20lt%3Dsubmit.x%255Elog%2520in%3B%20s_sq%3Dpaypalglobal%253D%252526pid%25253Dlog%25252520in%252526pidt%25253D1%252526oid%25253DLog%25252520In%252526oidt%25253D3%252526ot%25253DSUBMIT%3B; HaC80bwXscjqZ7KM6VOxULOB534=S8Jt_6ccdTcnX5ynFpUrLc2eXCe0xSs8v8_20kgYZSYCfVHtUQy37PsoAVwVWH6bt6vIVMRK7_oEPwdEKxnOQ619rObq5hwTr7LBuPdWuIxF0dD54GnIdcjSAjYOHzn3OkTVeW; jYNTsouSlksxSbcE1jOBQOPko-K=NeLwRNCAx8Es7DF3qIAyCAnxRncXLtUzPnZkr309zDXrbWqD2Lm1qnymoecIQx4h6neSry8yNZ-u6vZYf6LmyMY8upGOnbcZxoR8-m; consumer_display=USER_HOMEPAGE%3d3%26USER_TARGETPAGE%3d0%26USER_FILTER_CHOICE%3d0%26BALANCE_MODULE_STATE%3d1%26GIFT_BALANCE_MODULE_STATE%3d1%26LAST_SELECTED_ALIAS_ID%3d0%26RM_NAV%3d1%26SELLING_GROUP%3d1%26PAYMENT_AND_RISK_GROUP%3d1%26SHIPPING_GROUP%3d1; login_email=frloplady%40yahoo.com; flow_back_cookie=; 1IYsBWSH35QeL-tx4zwtUlFerc8=7ERb88dj_nOb3VucMcsXGVykxUW8sdFxn3OsA_osZIVUyap6Xd35HTtlOe84ph4MkI90tW; cwrClyrK4LoCV1fydGbAxiNL6iG=rz4YljPunGAZHZ7nb2tqeQH71q31EzVtQQ4XMZ5HkH5RoK5hHRHkbQjZ7RjEZ_aaX__VPurV-3ntwn8OYGppd1qMY47Xtb7jWPYJue8-IWANqFoybgRXsuyzIpGB_OwPpJe910%7cOPtNnNRbGqzyjJalQoxS1iLr74XL1HpJ9RUXGolsuzz7W0wd472e44_Aax8dS9oyE-qeM0%7cXa6kkTAI1NkAh1IdH1_nY3XUX2yLchYw4mbay-tGjoWT3mCfi0IcjUIdb5IJGkCEwIIT5G%7c1339163328; ppip_signup=; SEGM=; LANG=en_US%3bUS; INSIDE_SEARCH_PARAMS=2%3bUS%3ben_US%3bAmerica%2fLos_Angeles; navcmd=_express-checkout; DH4puLeRqX6BpunfdurQO8Swi28=LEFJR4eNzPBr177Bk-S_SrlNLChuFMNfNH_n7w1UhAPJi4uAGT0oPgsDmm7NFAOYFfDt6UaHFxos_6OcJlMqHTufSiCpt_1XmQqHRYK1xw00Jyet-a3OyLCsNjgbQ8kOBkcKofObExRaSHiFGHBdmPZMRXPc-3L5-9J2F4MPf8WNlWHcFIVXxUZ-fielYV1vZI6nYx0Yw1BuOgr-Qvcd0e9RUtMAIgGyPO_YdwnBSNM2FbeUov0wfQQIoZfP9tx6W_YTqEma0cFS9nox9C1dBJu4UT3dRpHlnjSdZm; pNTcMTtQfrJuaJiwEnWXQ6yNxfq=6RveJMaY8pz5mrlZPZtAcHF7cmvq5cUblHpatrmVGTcR4Q8jXnTSfLU7LGJG_yzTV9kFrUHWdBlO4CwKRqnddvW9UtqBaAnCdUIWktBZ7g0r3Bq7IGR6hWsvqYCHpwwUND0AGaCkkG4xxT8vrZWiP5onbsbhy3SMLtcmCaero5WQGtYUfhfeH2dOVrdrb5YBig0G8ZIoBQC1EnXplZFbrlmcAYZSnPcQHfwe5WzHY3z4VNj7QqBbfR2UcUU3fiEvO0qTmfZdmaIF81mOcBKdcUKXgiaEUU9RidUmUi48Vq57FaV70D9-BNc3msxm7pGuBw82lwBE_CSgRZVwRCFdu9pIl4hF1PROy-57mPMwBxDkK-HcxC5cIaYIY5PpUxB2jQLH-QeUFyQKv581Vknx8fCw0YYqgmsf0VsZPo3bLZ-KazZR194S2DZzGVMGyYRn4abjNsXspdvstVeHhROefTgMYtpwK3Phoyize3zmI0i9t7qa4fFJM6YlXQD63mBtWp3xGITePz_hMP86Y1kVpjmh6RzAiY6SkZY85YNz9gJdX0qaD5zOqv2Y1ARWab_eIrEhh8BmvJXFzd3RuHiVxT8Jz_QLGd8JVRD3Byh_7-aVxSfi7hTETg9_d3gFI4urIWlF3VcZRyYiRIzKAxpz4Yyw_GCgYQ9j-yPuKWwuYPFxIVPUT7iWlETDOwGIOSMgWs7BkVQ7t83f58cZwAxZ2xqCO2BHHR9CJ_vxsN7D4dSb4Zoi4Avjb9TCYHIZeSXWsn93OJ4zx8u3w3vg1HA0zveVsYGbwVE0uK1FG0DhfPnTU3U-7xfMto-PKUEsti50rctjWpAegcspah-WxkLBCW_dZWxnkVnkKtH3quJRA_WHSVcP0EBB7PyJ6xESCJ3JPn_WblFoO2REsBZr-qSpC5vDJa9iXSlhoCH77kE7SSl6t2O0Hyai0GXFAnqauh2pXilq3PNRkEf9OIYQjVm9UCML8eAOWiWF65rq2rkX60xR1fv02SExi3Z5fSH2G7SZku0YTsTX7BkjW56l5KmxV1QmOV_yDwt6Q28Vy56hQcyxlYa2BIk03eITEgofsNKBUReI7D1UEUhRe40h-msSv4mPGMtcy5-Ckf3n3FT2pknBjFMDGPwcRR83T_V0e0G9mYEEnmMBfvr5A-ZK; TSe9a623=53d1307486506c92a6cc1c64043a459f4978fdf4e7bde96d4fd602fefaa6df633516b50fba64fcf83ecccf3489d9b1b6239fbf8af73a617a6e23a2f6994b25e9154625b652cd3ebea7f12199dd628b67740c8dc348da53e9ffffffff9928b17d765452e9a0e245895a3ce78fffc8c60effffffff99cfbd19ffffffff279fb70125b197760239c0c52b092c00; TSd78272=a01df8c2999028267aaf6e0b0d75905df9cc0c6ceab122aa4fd6138afaa6df636486332ea0e24589e8076ccbba64fcf83ecccf3489d9b1b6239fbf8a994b25e99b07213052cd3ebea7f12199dd628b67740c8dc348da53e9ffffffff9928b17d765452e9f73a617aa18b3395ffc8c60effffffff99cfbd19ffffffff279fb70125b197760239c0c52b092c00492b376f3146ef5f88d33d783146ef5f17111e65ffffffff; TS6a0e62=d518cdd237f325863041db61e3ba76fad1ea64f40c0254e04fd615bdfaa6df63a67efab4f73a617affffffff279fb70125b197762935019931d47249ba64fcf83ecccf34a0e245891d1b250b89d9b1b6249f1a55994b25e9ee495af80239c0c52b092c0035b3914fffffff

seriously... the problem has to be the length of the error message =;)

MW

more options

If clearing the cookies doesn't help then it is possible that the file cookies.sqlite that stores the cookies is corrupted.

Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookie files like cookies.sqlite-journal in the Firefox Profile Folder in case the file cookies.sqlite got corrupted.

You can use this button to go to the Firefox profile folder:

  • Help > Troubleshooting Information > Profile Directory: Open Containing Folder