8 Hacks to Make Firefox Faster

Firefox has surpassed IE in every department for years, and version 3 is faster than ever before.
But the right settings and you could tweak it so that even faster, more than doubling your speed in some situations, all for about five minutes of work and the cost of precisely nothing. Here's what you need.
1st Enable Pipelining
Browsers are usually very polite, wait, sending one request to a server, then a response before continuing. Pipelining is a technique that send multiple requests before they are aggressive all the possible answers are received, often reducing page download times possible. To activate it, type about: config in the address bar, double-click and network.http.pipelining network.http.proxy.pipelining So your values are set to true, then double-click on network.http.pipelining.maxrequests and set this to 8
Note that some servers do not support pipelining, though, and if you regularly visit a lot of these then the tweak can actually reduce performance. Set network.http.pipelining network.http.proxy.pipelining, and to false again if you have any problems.
2nd Render quickly
Large, complex web pages take a while to download. Firefox does not want to keep, wait, it appears by default, which it received so far every 0.12 seconds (the "Content Notify interval"). While this helps the browser feel snappy increase, frequent redraws the entire page load time, so that a longer interval will notify the content to improve performance.
Type about: config and press [Enter], then right-click (Apple user Ctrl-click) somewhere in the window and select New> Integer. Enter your preference content.notify.interval such as name, click OK, enter 500000 (that's not five hundred fifty thousand) and click OK again.
Use the right mouse button to click again in the window and select New> Boolean. This time you create a value called content.notify.ontimer and set it to True to complete the task.
3rd Faster loading times
If you have not moved your mouse or touched the keyboard for 0.75 seconds (the content switch threshold) then Firefox enters a low frequency interrupt mode, which means the interface is less responsive but your page load faster. Reducing the content switch threshold can improve performance, then, and it only takes a moment.
Type about: config and press [Enter], right-click in the window and select New> Integer. Content.switch.threshold type, click OK, enter 250000 (quarter second) and click OK to quit.
4th No interruptions
You can go the last step even further by ignoring the Firefox user interface events until the current page is downloaded. This is a little drastic as Firefox could remain for some time does not react, but try this and see how it works for you.
Type about: config, press Enter [] with the right mouse button in the window and select New> Boolean. Content.interrupt.parsing type, click OK, set the value to false and click OK.
5th Block Flash
Intrusive Flash animations are everywhere, popping up slow on the content you really want to read, and surfing. Fortunately, there is a very simple solution. Install the Flashblock extension (flashblock.mozdev.org), and it will be to load all Flash applets block so that Web pages will be displayed much faster. And if you have some Flash content that is not entirely useless, just click on the placeholder to download and view the applet as normal.
6th Increase the cache size
As you surf the Web, so Firefox stores site images and scripts in a local cache, where they can be retrieved quickly if the same page. If you have enough RAM (2 GB more), leave Firefox runs back the whole time and regular pages, you can improve this performance by increasing cache size. Type about: config and press [Enter], and then right-mouse button anywhere in the window and select New> integer. Browser.cache.memory.capacity type, click OK, enter 65536 and click OK, then restart your browser to the new, larger cache to get.
7th Enable TraceMonkey
TraceMonkey is a new Firefox feature that converts slow JavaScript in super-fast x86 code, and so it can run some functions anything up to 20 times faster than the current version. It is buggy is still not available, in the regular Firefox download yet, but if you are willing to have the odd accident risk or two then it is an easy way to try it out.
Install the latest Nightly Build (ftp://ftp.mozilla.org/pub/firefox/nightly/latest-trunk/), start it, type about: config in the address bar and press Enter. In the just-filter box, then double-click on javascript.options.jit.content javascript.options.jit.chrome and to change their values to true, and that's it - you run the fastest Firefox Javascript engine ever.
8th Compressing data
If you have a slow Internet connection then it may feel like you never Get Firefox perform adequately, but that's not necessarily true. Install toonel.net (toonel.net) and this clever Java applet will re-route your web traffic through its own server, compressing it at the same time, making it much less to download. And it can even compress JPEGs by reducing their quality. All this helps to cut your data transfer, useful if you have a limited account on a GB per month, and can at best double your browsing performance.