Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

what does bad request (invalid hostname) mean?

  • 1 reply
  • 56 have this problem
  • 1 view
  • Last reply by cor-el

more options

When i type google.com into my search bar it goes to a white screen and says "bad request (invalid hostname)" in big black letters. what does this mean and how can i fix it?

When i type google.com into my search bar it goes to a white screen and says "bad request (invalid hostname)" in big black letters. what does this mean and how can i fix it?

All Replies (1)

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"