1.在火狐地址栏里输入“about:config”，等系统调用完毕之后按照下列步骤：

2.更改　"network.http.pipelining"　为 ture

3.更改　"network.http.proxy.pipelining" 为 ture

4.更改　"network.http.pipelining.maxrequests" 为 8