An HTTP error 400 appears on the Web site of the Firefox browser. The request is badly formed. Error, how to fix

When you visit a Web site today, an "HTTP Error 400" appears. The request is badly formed. " Error

So how do we fix it?

1, Problem Description:

"" HTTP error 400 appears in Firefox browsing site. The request is badly formed. " Error

2, the cause of the problem:

Http error is a client-side problem, and it's not the same as the server (local problem)

3. Solution:

solve the problem by cleaning up the trash, cleaning the registry, or checking the ad Blocker module and firewall settings

PS: I fix this problem by clearing Firefox history and cookies

An HTTP error 400 appears on the Web site of the Firefox browser. The request is badly formed. Error, how to fix