Safari can't connect to server
Hi, on most web pages I try to go to I keep getting "Safari can't connect to server." Then I use firefox and it works.? I want to fix the Safari issue but I don't know how to. Can someone please help me? Thanks. I have run EtreCheck but I'm not sure how to post it and whether not it would help with this issue.? Thanks in advance.
MacBook Pro Retina