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.

ابحث في الدعم

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

How do I fix a 400 Bad Request or I'm I missing something to make it work.

  • 3 ردود
  • 107 have this problem
  • 6 views
  • آخر ردّ كتبه cor-el

more options

Every time I try to connect to Firefox (400 Bad Request). Now I even tried to disconnect and reconnect to Firefox again still the same 400 Bad Request.

Every time I try to connect to Firefox (400 Bad Request). Now I even tried to disconnect and reconnect to Firefox again still the same 400 Bad Request.

All Replies (3)

more options

Someone there to help me.

more options

Confirmation on my first reply, Firefox connection still having problems with (400 Bad Request) is there help for this Issue.

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

See also: