If you use Windows, then it is possible to squeeze extra speed from your internet connection. By default, Windows reserve internet bandwidth up to 20% for various services such as Windows updates and spyware checks by using QoS Packet Scheduler, it is a network bandwidth management tool that can monitor the importance of data packets and depending upon the priority of the packet, give it higher or lower priority or bandwidth levels. It’s not very useful unless you’re using apps which are QoS-aware or running a server, so you can gain some network overhead back by turning it off.

Check it: Increase The Speed Of Internet Connection By 20%

How to configure ?
On which section this can be done?

Your tips about the increase the internet speed is really fine.After using Your tips i check my internet speed in the site http://www.ip-details.com/

The thread starter's trick is old one and is of no such use basically for new FIREFOX users. There are better ways to increase speed these days.