Firefox 3.5 : Faster, Safer, Smarter, Better

Firefox 3.5 is more than twice as fast as Firefox 3, and ten times as fast as Firefox 2. As a result, Web applications like email, photo sites and your favorite social networks will feel snappier and more responsive.

Faster JavaScript

The TraceMonkey JavaScript engine brings screaming fast performance to Firefox 3.5. With JavaScript that's more than twice as fast as Firefox 3 and 10x faster than Firefox 2, you'll be able to see the difference without breaking out your stopwatch.

Faster DOM

We've been working hard to make DOM access and manipulation faster in Firefox 3.5- over 2x faster than Firefox 3, in fact. We've removed overhead from our code, added new fast-access query and manipulation methods, and added support for new standards.

Open Video and Audio

Online media gets a major upgrade with Firefox 3.5. It includes the world's first implementation of HTML 5 audio and video support (Ogg Vorbis and Ogg Theora), allowing web developers to include rich media that's controlled using JavaScript, HTML and CSS instead of by proprietary technologies.

XHR

Firefox 3.5 supports cross-site XMLHttpRequests, which means your Web applications can now access material from other servers (as long as the servers are configured to allow it), thus paving the way for new mashups and other online collaborations.

Downloadable Fonts

Web developers and site designers can now get a more consistent look across all platforms by using downloadable TrueType and OpenType fonts in their designs instead of relying on the fonts installed on the user's local machine.

TraceMonkey

Knowing that users have the benefit of Firefox 3.5's dramatically improved TraceMonkey engine, Web developers can build JavaScript-based applications and sites that are faster and more responsive than ever (see Performance section above for more details)

Location-aware Browsing

In Firefox 3.5, users can share their location with requesting websites, allowing developers to customize their applications so they deliver more useful, more relevant output.

Privacy

More ways to maintain your privacy while you're online:

Browsing Set your browsing mode to private and leave no trace of past Web history.	Clear History Delete where you've been on the Web after the fact—simple and easy.
Pick Your Privacy Remove the history of your visits to a particular site but retain the rest of your browsing history.	Easy Options Firefox asks you straight up about how to store your history and gives you fine-tuned privacy control over the Awesome Bar.

Tabs

Tabs in Firefox keep getting better. Turn a tab into its own window instantly—tabs now tear off to stand alone when you want them to. Need a new tab? There's a convenient button for that, right in your tab bar.

Awesome Bar

We've raised the Awesome Bar even higher. Now get more privacy and customization when you choose to display or hide bookmark or history matches. New autocomplete keystrokes match keywords to your choice of bookmarks, history, titles and tags, or URL. And we've tightened up your keyword search experience all around.

Site Identity

Firefox's site identity button now displays the domain name for SSL, making it easier to notice when you're entering or exiting a secure connection and to determine who you're connected to.

More UE Goodness

Firefox has so many new features, some just defy categorization, like multi-touch gestures for OS X and Windows 7, which make overall navigation easier. And autocomplete is now part of how you bookmark, so tagging is easier and more intuitive. You can even edit tags for a bulk of bookmarks right in the library window. If things crash, Firefox automatically restores your experience. And now you can get recently closed windows back in a single click. Plus, we've given your browsing history an easier-to-use timeline so you can quickly find pages you've been to before.

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DOWNLOAD FIREFOX 3.5 NOW

http://www.mozilla.com/en-US/firefox/upgrade.html

source : http://www.mozilla.com