Double your browser's speed in just five minutes
network.http.pipelining and network.http.proxy.pipelining
and press [Enter], then right-click anywhere in the window and
select New > Integer.
Type browser.cache.memory.capacity, click OK, enter 65536 and click OK, then restart your browser to get the new, larger cache.
about:config in the address bar and press Enter.
Type JIT in the filter box,