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How to unblock a website

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Duelingnetwork.com was working a couple of days ago and now that I updated Mozilla its now blocked because its not a secure connection but it was a couple of days ago so I would like to know how to have it unblocked.

Duelingnetwork.com was working a couple of days ago and now that I updated Mozilla its now blocked because its not a secure connection but it was a couple of days ago so I would like to know how to have it unblocked.

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There is security software like Avast and Kaspersky and BitDefender and ESET that intercept secure connections and send their own certificate.

http://www.ehow.com/how_11385212_troubleshoot-reset-connection-firefox.html

https://support.mozilla.org/en-US/kb/server-not-found-connection-problem

https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

http://kb.mozillazine.org/Error_loading_websites

This Connection is Untrusted is sometimes caused because the computer system clock is wrong. Check the time / date / time zone settings.


Separate Issue; Your System Details shows;

Installed Plug-ins

Shockwave Flash 20.0 r0 Shockwave Flash 17.0 r0 Shockwave Flash 14.0 r0
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.

Flash: Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac

Then reinstall the latest version.

Flash Player Version 20.0.0.286
https://www.adobe.com/products/flashplayer/distribution3.html
Note: Windows users should download the ‘’’active_x’’’ for “Internet Explorer,” and the ‘’’plugin’’’ for “Plugin-based browsers” (like Firefox).

Note: Windows 8 and Windows 10 have built in flash players and Adobe will cause a conflict. Install the ’’’plugin’’’ only. Not the ’’’active_x’’’.

Adobe still offers Flash 18.0.0.326 as its extended support release further down

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When I check https://www.duelingnetwork.com/ Firefox raises two problems:

(1) the certificate is for https://host.duelingnetwork.com/ and not the www site, and

(2) the certificate is self-signed, meaning that no trusted certificate authority is vouching for the server being the real one.

I don't think Firefox has changed how it evaluates these kinds of certificate flaws, so I can think of three possibilities:

(A) The site broke the server (B) Someone else hacked the server or hijacked this address (C) You were using it on an HTTP address http://www.duelingnetwork.com/ so Firefox didn't raise these issues before

When I try to go to their forum our security service tells me it is unsafe, so something might be wrong on this site.