I get a "unable to find the proxy server" when trying to access http (non-https) sites. Help! I need to use my proxy server..
I cannot connect to http sites when using my proxy. This just happened over the last three or four days. I have updated to the most current Firefox and am using a MacBook Pro. I have to use my proxy.
Type about:preferences#advanced<enter> in the address bar.
Under Advanced, Select Network. Look for Configure How Firefox Connects and press the Settings button. Check the settings.