Try with Disabling the Real Time Antivirus and Firewall.

For more

• http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/socket-10013-error-when-trying-to-connect-some/2cc71cb6-24b2-4b63-8f60-32bb444eb8fd

Try clear your recent history:

• Clear recent history

Did you try access this page in other network? This happens only in this website?

Also check your Firewall configurations:

• https://support.mozilla.org/en-US/kb/configure-firewalls-so-firefox-can-access-internet
• https://support.mozilla.org/en-US/kb/configure-windows-firewall-allow-firefox-access
• https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

Also:

• Firefox in safe mode

I have tried those and still comes up the same.

Hello,

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Thank you!

Do you want to use Fiddler or is this unintentional?

If you didn't install Fiddler then uninstall this software in the Windows Control Panel.

You can also check the connection settings.

• Tools > Options > Advanced > Network : Connection > Settings
• https://support.mozilla.org/kb/Options+window+-+Advanced+panel

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":

• https://support.mozilla.org/kb/Firefox+cannot+load+websites+but+other+programs+can