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

Sending message

  • 1 cavab
  • 1 has this problem
  • 1 view
  • Last reply by philipp

more options

I get the following error when I try to send a message: Error Message: Invalid IdP URL (HTTP 404)

I get the following error when I try to send a message: Error Message: Invalid IdP URL (HTTP 404)

All Replies (1)

more options

hello, please delete the cache & all cookies for the site and make sure that it has the permission to set new cookies in firefox.

How to clear the Firefox cache

Cookies - Information that websites store on your computer