Optimize Firefox for Broadband

Believe it or not, Firefox is optimized for dial-up connections by default. You need to change some settings to get the browser’s best performance over DSL, cable, or other broadband links.

Next, open Firefox and press -L to place the cursor in the address bar. Type about:config and press . Then enter network.http in the filter field. Now make the following changes:

• In the field of ‘Preference Name’ choices (click on the thumbnail at right to see the screen), double-click network.http.pipelining to set it to ‘true’.
• Next, double-click network.http.pipelining.maxrequests to bring up the ‘Enter integer value’ dialog box. Enter a higher number than the default 4; 15 works for me. Press Enter.
• Double-click network.http.proxy.pipelining to set it to ‘true’.
• Right-click anywhere on the page and select New, Integer. Enter nglayout.initialpaint.delay and press . Set its value to 0 (zero), and press Enter again.

source: pc world