[hcp006sl]

Start Mozilla FireFox and type "about:config" in the address bar, make Enter. Then look for the following entries:
network.http.pipelining
network.http.proxy.pipelining
set the values to "true". (Right-click on those items → select 'toggle')
next create a new integer. Name this value 'nglayout.initialpaint.delay'
and set its value to '0'. (Right any where of that page → select 'new' → 'integer' → type the name → OK → type '0' → OK.)