Open your Firefox and type about:config at URL address bar and hit enter. To make a False into True, select the line to change, and double click. On the 2nd option change, right click and select Modify
- network.http.pipelining > Make it True
- network.http.pipelining.maxrequests > Make it 8 or 10
- network.http.proxy.pipelining > Make it True
- network.dns.disableIPv6 > Make it True
I hope this helps for some users
