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Firefox do not load pages from WAN.

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  • Ultima risposta di mazay0

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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.
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Any advice how to investigate the issue?

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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.

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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.

Modificato da mazay0 il

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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.

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Does a DNS Lookup via about:networking work properly ?

Are you using DNS over HTTP in Firefox ?

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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.