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Download Firefox 4.0

Firefox 4.0

By Mozilla Organization  (Open Source)
User Rating
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Managing Browser Add-Ons In Mozilla Firefox

Mozilla Firefox is a fast, light and tidy open source web browser. At its public launch in 2004 Mozilla Firefox was the first browser to challenge Microsoft Internet Explorer’s dominance. Since then, Mozilla Firefox has consistently featured in the top 3 most popular browsers globally. The key features that have made Mozilla Firefox so popular are the simple and effective UI, browser speed and strong security capabilities. The browser is particularly popular with developers thanks to its open source development and active community of advanced users.

Easier Browsing

Mozilla put of a lot of resources into creating a simple but effective UI aimed at making browsing quicker and easier. They created the tab structure that has been adopted by most other browsers. In recent years Mozilla has also focused on maximizing browsing area by simplifying toolbar controls to just a Firefox button (which contains settings and options) and back/forward buttons. The URL box features direct Google searching as well as an auto predict/history feature called Awesome Bar. On the right side of the URL box there are bookmarking, history and refresh buttons. To the right of the URL box is a search box which allows you to customize your search engine options. Outside of that a view button controls what you see below the URL. Next to that you have the download history and home buttons.

Speed

Mozilla Firefox boasts impressive page load speeds thanks to the excellent JagerMonkey JavaScript engine. Start up speed and graphics rendering are also among the quickest in the market. Firefox manages complex video and web content using layer-based Direct2D and Driect3D graphics systems. Crash protection ensures only the plugin causing the issue stops working, not the rest of the content being browsed. Reloading the page restarts any affected plugins. The tab system and Awesome Bar have been streamlined to launch/get results very quickly too.

Security

Firefox was the first browser to introduce a private browsing feature which allows you to use the internet more anonymously and securely. History, searches, passwords, downloads, cookies and cached content are all removed on shutdown. Minimizing the chances of another user stealing your identity or finding confidential information. Content security, anti-phishing technology and antivirus/antimalware integration ensures your browsing experience is as safe as possible.

Personalisation & Development

One of the best features of the Firefox UI is customization. Simply right click on the navigation toolbar to customize individual components or just drag and drop items you want to move around. The inbuilt Firefox Add-ons Manager allows you to discover and install add-ons within the browser as well as view ratings, recommendations and descriptions. Read more about the top recommended add-ons for Mozilla Firefox. Thousands of customizable themes allow you to customize the look and feel of your browser. Site authors and developers can create advanced content and applications using Mozilla’s open source platform and enhanced API.

Looking for the Mac version of Firefox? Download Here

Looking for the 64-bit version of Firefox? Download Here

Check out our guide to alternative browsers if you're looking for something a little different.

Please note: from version 53.0 onward Windows XP and Vista are no longer supported.

Title: Firefox 4.0
Filename: Firefox Setup 4.0.exe
File size: 12.00MB (12,580,112 bytes)
Requirements: Windows 2000 / XP / Vista / Windows 7 / XP 64-bit / Vista 64-bit / Windows 7 64-bit / Windows 8 / Windows 8 64-bit / Windows 10 / Windows 10 64-bit
Languages: Multiple languages
License: Open Source
Date added: March 22, 2011
Author: Mozilla Organization
www.mozilla.org
MD5 Checksum: 417E9BC84CD14B0D7D9C05DD5E869BBE

* Firefox 4 is available in over 80 languages
* Uses JägerMonkey, a new, faster JavaScript engine that is up to six times faster than Firefox 3.6
* Support for the Do Not Track ("DNT") header that allows users to opt-out of behavioural advertising
* Firefox Sync is included by default, allowing you to securely synchronize between multiple computers and mobile devices
* Certain graphics rendering operations are now hardware-accelerated using Direct3D 9 on Windows XP, Direct3D 10 on Windows Vista and 7, and OpenGL on Mac OS (OpenGL on Linux will be supported in the future)
* Direct2D Hardware Acceleration is now on by default for Windows 7 users
* WebGL is enabled on all platforms that have a capable graphics card with updated drivers
* Native support for the HD HTML5 WebM video format, hardware accelerated where available
* Firefox button has a new look for Windows Vista and Windows 7 users
* Tabs are now on top by default on Windows, Mac OS X, and Linux
* You can search for and switch to already open tabs in the Smart Location Bar
* The stop and reload buttons have been merged into a single button on Windows, Mac OS X, and Linux
* The Bookmarks Toolbar has been replaced with a Bookmarks Button by default (you can switch it back if you'd like)
* Crash protection for Windows, Linux, and Mac OS X when there is a crash in the Adobe Flash, Apple Quicktime or Microsoft Silverlight plugins
* You can turn any tab into an "App Tab" by right-clicking on it and selecting "Make into App Tab" from the context menu
* The default homepage design has been refreshed
* Overhaul of the bookmarks and history code, enabling faster bookmarking and startup performance
* Per-compartment garbage collection is now enabled, reducing work done during complex animations
* Additional polish for the Firefox Add-ons Manager
* Improved web typography using OpenType with support for ligatures, kerning and font variants
* Web developers can animate content using CSS Transitions
* Responsiveness and scrolling improvements from the new retained layers layout system
* HTML5 Forms API makes web based forms easier to implement and validate
* Support for the new proposed Audio Data API
* Support for HSTS security protocol allowing sites to insist that they only be loaded over SSL
* A new feature called Panorama gives users a visual overview of all open tabs, allowing them to be sorted and grouped
* An experimental API is included to provide more efficient Javascript animations
* Firefox now supports the HTML5 video "buffered" property
* Changes to how XPCOM components are registered in order to help startup time and process separation
* New Addons Manager and extension management API (UI will be changed before final release)
* Significant API improvements are available for JS-ctypes, a foreign function interface for extensions
* CSS Transitions are partially supported
* Core Animation rendering model for plugins on Mac OS X. Plugins which also support this rendering model can now draw faster and more efficiently
* Web developers can update the URL field without reloading the page using HTML History APIs
* More responsive page rendering using lazy frame construction
* Link history lookup is done asynchronously to provide better responsiveness during pageload
* CSS :visited selectors have been changed to block websites from being able to check a user's browsing history
* New HTML5 parser
* Support for more HTML5 form controls
* Web authors can now get touch events from Firefox users on Windows 7 machines
* A new way of representing values in JavaScript that allows Firefox to execute heavy, numeric code (used for things like graphics and animations) more efficiently

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