Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

bad request (invalid verb) errors

  • 2 replies
  • 53 have this problem
  • 46 views
  • Last reply by ajrobb

more options

Over the last few months firefox 3.6 keeps throwing up "bad request (invalid verb)" errors. These can be overcome by refreshing the page. It happens on Windows XP and ubuntu x64 linux.

Over the last few months firefox 3.6 keeps throwing up "bad request (invalid verb)" errors. These can be overcome by refreshing the page. It happens on Windows XP and ubuntu x64 linux.

All Replies (2)

more options

This can be a problem with corrupted cookies that are send to a server.

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

  • "Clear the Cache": Edit > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
  • "Remove the Cookies" from sites causing problems: Edit > Preferences > Privacy > Cookies: "Show Cookies"
more options

I set the browser to clear cookies on closing. This was confirmed by having to log into accounts where cookies would normally 'remember' my login. I still got 'bad verb' errors. Therefore, I don't think bad cookies are entirely to blame. Also, the pages usually load successfully on the second or third attempt.