3 Hacks for Firefox That Will Double Your Internet Browsing Speed

1. Reduce the amount of RAM Firefox uses for it’s cache feature
   Here’s how to do it:
   1. Type “about:config” (no quotes) in the adress bar in the browser.
   2. Find “browser.sessionhistory.max_total_viewer”
   3. Set it’s value to “0“;(Zero)
2. Increase the Speed in Which Firefox loads pages
   1. Type “about:config” into the address bar and hit Enter.
   (Normally the browser will make one request to a web page at a time. When you enable pipelining it will make several at once, which really speeds up page loading.)
   2. Alter the entries as follows:
   - Set “network.http.pipelining” to “true”
   - Set “network.http.proxy.pipelining” to “true”
   - Set “network.http.pipelining.maxrequests” to some number like 10.
   This means it will make 10 requests at once.
   3. Lastly, right-click anywhere and select New-> Integer. Name it “nglayout.initialpaint.delay” and set its value to “0“;.(Zero)
   This value is the amount of time the browser waits before it acts on information it receives. If you’re using a broadband connection you’ll load pages faster now.
   Optionally (for even faster web browsing) here are some more options for your about:config (you might have to create some of these entries by Right Click –> New– > Interger or String
   network.dns.disableIPv6: set “false”
   “content.notify.backoffcount”: set “5“; (Five)
   “plugin.expose_full_path”: set “true”.
   “ui.submenuDelay”: set “0; (zero)
3. Reduce RAM usage to 10mb when Firefox is minimized:
   This little hack will drop Firefox’s RAM usage down to 10 Mb when minimized:
   1. Open Firefox and go to the Address Bar. Type in about:config and then press Enter.
   2. Right Click in the page and select New -> Boolean.
   3. In the box that pops up enter “config.trim_on_minimize”. Press Enter.
   4. Now select True and then press Enter.
   5. Restart Firefox.

http://gnoted.com/3-hacks-for-firefox-double-internet-browsing-speed/