Investigating the Network Performance Of Firefox 5

June 10, 2011

Things are happening fast at Mozilla. Although Firefox 4 was only released three months ago, Firefox 5 is only days away from final release. We can also expect to see versions 6 and 7 later this year. One of the major performance related changes in Firefox 5 is an improvement in the way that keep-alive HTTP connections are re-used. Previously, there was a simple FIFO queue. So if Firefox ever tried to reuse a TCP connection it would simply use the connection that had been idle for the longest period of time. However, not all connections are equal. Connections that … Continue reading →