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

Firefox do not load pages from WAN.

  • 6 replies
  • 2 have this problem
  • 8 views
  • Last reply by mazay0

more options

After update from 68 to 78.8 my Firefox do not load web pages. It still loads local files (file://) and LAN sites (http://192.168.x.y/). But on attempt to load something like Google it shows just empty page and Network console shows zero bytes download (see image attached). I tried to reinstall it, removed ~/.mozilla, network.dns.disablePrefetch=true, network.dns.disableIPv6=true. Nothing of that helped. Chromium on the same machine works fine.

After update from 68 to 78.8 my Firefox do not load web pages. It still loads local files (file://) and LAN sites (http://192.168.x.y/). But on attempt to load something like Google it shows just empty page and Network console shows zero bytes download (see image attached). I tried to reinstall it, removed ~/.mozilla, network.dns.disablePrefetch=true, network.dns.disableIPv6=true. Nothing of that helped. Chromium on the same machine works fine.
Attached screenshots

All Replies (6)

more options

Any advice how to investigate the issue?

more options

You can check the connection settings.

  • Options/Preferences -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":


Boot the computer in Windows Safe Mode with network support to see if that has effect.

more options

cor-el said

You can check the connection settings.
  • Options/Preferences -> General -> Network: Connection -> Settings
If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly. See "Firefox connection settings":

Boot the computer in Windows Safe Mode with network support to see if that has effect.

There is already "No Proxy". As i already mentioned, DNS prefetching and IPv6 are disabled. It is Debian.

Modified by mazay0

more options

cor-el said

You can check the connection settings.
  • Options/Preferences -> General -> Network: Connection -> Settings
If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly. See "Firefox connection settings":

Boot the computer in Windows Safe Mode with network support to see if that has effect.

There is already "No Proxy". DNS Prefetching and IPv6 are disabled. It is Debian.

more options

Does a DNS Lookup via about:networking work properly ?

Are you using DNS over HTTP in Firefox ?

more options

cor-el said

Does a DNS Lookup via about:networking work properly ? Are you using DNS over HTTP in Firefox ?

Yes, DNS Lookup via about:networking works properly. DNS over HTTPS is not enabled.