We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Funkcionalnosć tutoho sydła so přez wothladowanske dźěła wobmjezuje, kotrež maja waše dožiwjenje polěpšić. Jeli nastawk waš problem njerozrisuje a chceće prašenje stajić, wobroćće so na naše zhromodźenstwo pomocy, kotrež na to čaka, wam na @FirefoxSupport na Twitter a /r/firefox na Reddit pomhać.

Pomoc přepytać

Hladajće so wobšudstwa pomocy. Njenamołwimy was ženje, telefonowe čisło zawołać, SMS pósłać abo wosobinske informacije přeradźić. Prošu zdźělće podhladnu aktiwitu z pomocu nastajenja „Znjewužiwanje zdźělić“.

Dalše informacije

web server receioved an invalid response

  • 3 wotmołwy
  • 1 ma tutón problem
  • 18 napohladow
  • Poslednja wotmołwa wot FredMcD

more options

When trying to access Norton support by selecting help and then support I get the following error: 520 - Web server received an invalid response while acting as a gateway or proxy server. I can access the page with Edge. This is on a new lap top with Norton and Fire Fox installed. Everything else in Norton seems to be working fine. My desktop also has Norton and Fire Fox and I have no problem accessing the page with fire fox on the desk top. Help!!

When trying to access Norton support by selecting help and then support I get the following error: 520 - Web server received an invalid response while acting as a gateway or proxy server. I can access the page with Edge. This is on a new lap top with Norton and Fire Fox installed. Everything else in Norton seems to be working fine. My desktop also has Norton and Fire Fox and I have no problem accessing the page with fire fox on the desk top. Help!!

Wšě wotmołwy (3)

more options
more options

Thank you. I was able to get on Norton support using Edge, but I am trying determine why I am having the problem with Fire Fox. I do not have the problem on my desk top machine while using Fire Fox

more options

Firefox has more strict security to protect the computer and the user.