I am also facing the same problem. I am using squid-2.5.STABLE6-3 on FC3. I'hv allowed port 443. I tried with FireFox and IE6. With bothe browser facing the problem. But same browser with another proxy running Netscape Proxy is running fine. As someone has suggested to upgrade to STABLE8. Is it solve the pblem? > check whether you have opened HTTPS [443] port or not? > > Try browsing any secure site[that require secure communication httpS]. > i.e any banking Or e-commerce. > > I don't think gmail.com & google.com both being blocked by any ACL . > > [If you are bocking anything & everything starting from alphabet g, > using regular expression[regress]] > > gmail.com problem may be arising due browser being not supported by gmail!. > > Please use IE6,Netscape 4+,Firefox 1.0 etc. > > But most importatnt thing