1. Delete items from address bar history

While it’s very handy to have your recently visited pages autocompleted as you type, it’s not always desirable. Go to the address bar (Ctrl-L), start typing an address, and the drop-down menu will appear with the URLs of pages you’ve visited. You can highlight and delete these at will, for maximum privacy.

2. Protect your PC from malware

You don’t have to visit the seedy side of the web to pick up a virus – even the best social networking sites regularly host all kinds of malware. But you can reduce the chance of infection by installing NoScript. This handy add-on blocks Javascript, Java, Flash and other executable content from running unless you explicitly allow it, and is a great way to keep yourself safe online.
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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. More »

1. Change the refresh for live bookmarks

Type about:config, create a new integer value browser.bookmarks.livemark_refresh_seconds and enter the number of seconds for the update interval (default:3600).

2. Change the way Firefox handles keywords typed in the address bar. If you don’t type a URL, Firefox sends you to the first result for your query.

Type about:config, write keyword.URL in the Filter, and change the value to

http://www.google.com/search?ie=UTF-8&sourceid=navclient&gfns=1&q=

If your query has a clear match (like [slashdot], [stanford]), the functionality will remain. If you enter a general query (like [pizza recipes]), you’re sent to the results page.
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Firefox can be real fun for the beginners when you get to know some cool tips and tricks. You can play around with the hot keys and get amazing results. Lets check out the top ten tips and tricks in firefox:

1. Ctrl – 1 or 2 or 3 or 4
Lets say you have 4 tabs opened in Firefox. And you want to go directly to the 3rd tab. You just need to press Alt–3. Hey! It takes you to the 3rd page. In this way Alt-1 will take you to the first tab, Alt-2 to the second, and so forth.

2. Shift – Click a link
If you are working on a page and want to keep the current location while browsing another, use Shift while you click on a link. The new page will open in an another window. More »

Believe it or not, Firefox is optimised 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.

Before you change anything, back up Firefox’s configuration file; return to the page “Better Default Google Search” and scroll down to “Back Up FireFox’s ‘Registry’ ” for details.

Next, open Firefox and press Ctrl, L to place the cursor in the address bar. Type about:config and press Enter. 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’. More »