Opera Proxy URL Configuration

In Opera's menu click Preferences in order to open the configuration page.
Select Browser from the left-side list of options.
Press Change Proxy Settings... in order to open the Network window.
Select Proxies tab in the Network window.
Then tick and select Automatic Proxy Configuration.
In the field named Proxy Configuration File copy the following URL:

Please login to see the proxy URL.

Hint: Please enter the proxy URL correctly with no missing /extra characters. The proxy will work only if the Proxy URL is correct.
Click OK, then click Apply in order to finish the configuration.