8 New FIREFOX Hacks to make Firefox go extreme fast

http://www.itechnobuzz.com/wp-content/uploads/mozilla-firefox.jpg

The Mozilla FireFox V3 is undoubtable a great browser , but with some little Hacking tweaks ,u can doublize its performance..

1. Enable pipelining

Browsers are normally very polite, sending a request to a server then waiting for a response before continuing. Pipelining is a more aggressive technique that lets them send multiple requests before any responses are received, often reducing page download times. To enable it, type about:config in the address bar, double-click network.http.pipelining and network.http.proxy.pipelining so their values are set to true, then double-click network.http.pipelining.maxrequests and set this to 8.

Keep in mind that some servers don�t support pipelining, though, and if you regularly visit a lot of these then the tweak can actually reduce performance. Set network.http.pipelining and network.http.proxy.pipelining to false again if you have any problems.

2. Render quickly

Large, complex web pages can take a while to download. Firefox doesn�t want to keep you waiting, so by default will display what it�s received so far every 0.12 seconds (the �content notify interval�). While this helps the browser feel snappy, frequent redraws increase the total page load time, so a longer content notify interval will improve performance.

Type about:config and press [Enter], then right-click (Apple users ctrl-click) somewhere in the window and select New > Integer. Type content.notify.interval as your preference name, click OK, enter 500000 (that�s five hundred thousand, not fifty thousand) and click OK again.

Right-click again in the window and select New > Boolean. This time create a value called content.notify.ontimer and set it to True to finish the job.

3. Faster loading

If you haven�t 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 its interface becomes less responsive but your page loads more quickly. 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. Type content.switch.threshold, click OK, enter 250000 (a quarter of a second) and click OK to finish.

4. No interruptions

You can take the last step even further by telling Firefox to ignore user interface events altogether until the current page has been downloaded. This is a little drastic as Firefox could remain unresponsive for quite some time, but try this and see how it works for you.

Type about:config, press [Enter], right-click in the window and select New > Boolean. Type content.interrupt.parsing, click OK, set the value to False and click OK.

5. Block Flash

Intrusive Flash animations are everywhere, popping up over the content you actually want to read and slowing down your browsing. Fortunately there�s a very easy solution. Install the Flashblock extension (flashblock.mozdev.org) and it�ll block all Flash applets from loading, so web pages will display much more quickly. And if you discover some Flash content that isn�t entirely useless, just click its placeholder to download and view the applet as normal.

6. Increase the cache size

As you browse the web so Firefox stores site images and scripts in a local memory cache, where they can be speedily retrieved if you revisit the same page. If you have plenty of RAM (2 GB of more), leave Firefox running all the time and regularly return to pages then you can improve performance by increasing this cache size. Type about:config and press [Enter], then right-click anywhere in the window and select New > Integer. Type browser.cache.memory.capacity, click OK, enter 65536 and click OK, then restart your browser to get the new, larger cache.

7. Enable TraceMonkey

TraceMonkey is a new Firefox feature that converts slow Javascript into super-speedy x86 code, and so lets it run some functions anything up to 20 times faster than the current version. It�s still buggy so isn�t available in the regular Firefox download yet, but if you�re willing to risk the odd crash or two then there�s an easy way to try it out.

Install the latest nightly build

(ftp://ftp.mozilla.org/pub/firefox/nightly/latest-trunk/)

, launch it, type about:config in the address bar and press Enter. Type JIT in the filter box, then double-click javascript.options.jit.chrome and javascript.options.jit.content to change their values to true, and that�s it - you�re running the fastest Firefox Javascript engine ever.

8. Compress data

If you�ve a slow internet connection then it may feel like you�ll never get Firefox to perform properly, 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, so there�s much less to download. And it can even compress JPEGs by allowing you to reduce their quality. This all helps to cut your data transfer, useful if you�re on a limited 1 GB-per-month account, and can at best double your browsing performance. 

How to remove Virus from USB Drives

How to remove Virus from USB Drives

One of the ways by which a virus can infect your PC is through USB/Pen drives. Common viruses such as ’Ravmon’ , ‘New Folder.exe’, ‘Sho is banned’ etc are spreading through USB drives. Most anti virus programs are unable to detect them and even if they do, in most cases they are unable to delete the file, only quarantine it. Here are the things which you can do if you want to remove such viruses from your USB drives

Whenever you plug a USB drive in your system, a window will appear similar to the one shown below

http://i279.photobucket.com/albums/kk131/rvnd10/usb-thumb.jpg

Don’t click on Ok , just choose ‘Cancel’. Open the Command Prompt by typing ‘cmd‘ in the run box. In the command prompt type the drive letter: and press enter . Now type dir /w/a and press enter.

This will display a list of the files in the pen drive. Check whether the following files are there or not

* Autorun.inf
* Ravmon.exe
* New Folder.exe
* svchost.exe
* Heap41a
* or any other exe file which may be suspicious.

If any of the above files are there, then probably the USB drive is infected. In command prompt type attrib -r -a -s -h *.* and press enter. This will remove the Read Only, Archive, System and hidden file attribute from all the files. Now just delete the files using the command del filename. example del Ravmon.exe. Delete all the files that are suspicious. To be on a safer side, just scan the USB drive with an anti virus program to check whether it is free of virus or not. Now remove the drive and plug it again. In most of the cases, the real culprit turns out to be the “Autorun.inf” file which mostly gets executed when someone clicks Ok in the dialog window which appears above. Thus the infections can spread

sql injection

I want to show you just one way that hackers can get in to your website and mess it up, using a technique called SQL Injection. And then I'll show you how to fix it. This article touches on some technical topics, but I'll try to keep things as simple as possible. There are a few very short code examples written in PHP and SQL. These are for the techies, but you don't have to fully understand the examples to be able to follow what is going on. Please also note that the examples used are extremely simple, and Real Hackers™ will use many variations on the examples listed.

If your website doesn't use a database, you can relax a bit; this article doesn't apply to your site — although you might find it interesting anyway. If your site does use a database, and has an administrator login who has rights to update the site, or indeed any forms which can be used to submit content to the site — even a comment form — read on.

Warning

This article will show you how you can hack in to vulnerable websites, and to check your own website for one specific vulnerability. It's OK to play around with this on your own site (but be careful!) but do not be tempted to try it out on a site you do not own. If the site is properly managed, an attempt to log in using this or similar methods will be detected and you might find yourself facing charges under the Computer Misuse Act. Penalties under this act are severe, including heavy fines or even imprisonment.What is SQL Injection?

SQL stands for Structured Query Language, and it is the language used by most website databases. SQL Injection is a technique used by hackers to add their own SQL to your site's SQL to gain access to confidential information or to change or delete the data that keeps your website running. I'm going to talk about just one form of SQL Injection attack that allows a hacker to log in as an administrator - even if he doesn't know the password.

Is your site vulnerable?

If your website has a login form for an administrator to log in, go to your site now, in the username field type the administrator user name.

In the password field, type or paste this:

x' or 'a' = 'a

If the website didn't let you log in using this string you can relax a bit; this article probably doesn't apply to you. However you might like to try this alternative:

x' or 1=1--

Or you could try pasting either or both of the above strings into both the login and password field. Or if you are familiar with SQL you could try a few other variations. A hacker who really wants to get access to your site will try many variations before he gives up.

If you were able to log in using any of these methods then get your web tech to read this article, and to read up all the other methods of SQL Injection. The hackers and "skript kiddies" know all this stuff; your web techs need to know it too.The technical stuff

If you were able to log in, then the code which generates the SQL for the login looks something like this:

$sql =
"SELECT * FROM users
"WHERE username = '" . $username .
"' AND password = '" . $password . "'";

When you log in normally, let's say using userid admin and password secret, what happens is the admin is put in place of
$username
and secret is put in place of
$password
. The SQL that is generated then looks like this:

SELECT * FROM users WHERE username = 'admin' and PASSWORD = 'secret'

But when you enter
x' or 'a' = 'a
as the password, the SQL which is generated looks like this:

SELECT * FROM users WHERE username = 'admin' and PASSWORD = 'x' or 'a' = 'a'

Notice that the string:
x' or 'a' = 'a
has injected an extra phrase into the WHERE clause:
or 'a' = 'a'
. This means that the WHERE is always true, and so this query will return a row contain the user's details.

If there is only a single user defined in the database, then that user's details will always be returned and the system will allow you to log in. If you have multiple users, then one of those users will be returned at random. If you are lucky, it will be a user without administration rights (although it might be a user who has paid to access the site). Do you feel lucky? How to defend against this type of attack

Fixing this security hole isn't difficult. There are several ways to do it. If you are using MySQL, for example, the simplest method is to escape the username and password, using the mysql_escape_string() or mysql_real_escape_string() functions, e.g.:

$userid = mysql_real_escape_string($userid);
$password = mysql_real_escape_string($password);
$sql =
"SELECT * FROM users
"WHERE username = '" . $username .
"' AND password = '" . $password . "'";

Now when the SQL is built, it will come out as:

SELECT * FROM users WHERE username = 'admin' and PASSWORD = 'x\' or \'a\' = \'a'

Those backslashes ( \ ) make the database treat the quote as a normal character rather than as a delimiter, so the database no longer interprets the SQL as having an OR in the WHERE clause.

This is just a simplistic example. In practice you will do a bit more than this as there are many variations on this attack. For example, you might structure the SQL differently, fetch the user using the user name only and then check manually that the password matches or make sure you always use bind variables (the best defence against SQL injection and strongly recommended!). And you should always escape all incoming data using the appropriate functions from whatever language your website is written in - not just data that is being used for login.