A faster, more secure and customizable Web browser.

Mozilla Firefox (64-bit) - 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. Mozilla Firefox is a fast, full-featured Web browser. Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows a number of additional features that work with you to help you get the most out of your time online.

Mozilla Firefox (64-bit) - 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 and this is set to continue thanks to the release of Firefox 30. 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.

Mozilla Firefox, free download. Mozilla Firefox 88.0: Coupon Search Plugin for Firefox, find some of the best discounts and deals around from the best retailers on the net. Coupons, discount codes and more. CouponMeUp have thousands of the best coupons from hundreds of online retailers. Note: Mozilla began to automatically switch users from 32-bit Firefox to 64-bit Firefox, starting with the update to Firefox version 56.0.1 on October 9, 2017. See How do I tell if I have the 32-bit or 64-bit Firefox? To find out if you already have 64-bit Firefox. To learn more, see this Mozilla blog post and this Mozilla Wiki.

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 about the top recommended add-ons for Mozilla Firefox on TechBeat. 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.

• Firefox keeps getting faster as a result of significant updates to SpiderMonkey, our JavaScript engine, you will now experience improved page load performance by up to 15%, page responsiveness by up to 12%, and reduced memory usage by up to 8%. We have replaced part of the JavaScript engine that helps to compile and display websites for you, improving security and maintainability of the engine at the same time.
• Firefox introduces HTTPS-Only Mode. When enabled, this new mode ensures that every connection Firefox makes to the web is secure and alerts you when a secure connection is not available. You can enable it in Firefox Preferences.
• Pinch zooming will now be supported for our users with Windows touchscreen devices and touchpads on Mac devices. Firefox users may now use pinch to zoom on touch-capable devices to zoom in and out of webpages.
• Picture-in-Picture now supports keyboard shortcuts for fast forwarding and rewinding videos: use the arrow keys to move forward and back 15 seconds, along with volume controls.
• When you are presenting your screen on a video conference in Firefox, you will see our improved user interface that makes it clearer which devices or displays are being shared.
• Firefox supports AcroForm, which will allow you to fill in, print, and save supported PDF forms and the PDF viewer also has a new fresh look.
• Selecting a search engine at the bottom of the search panel now enters search mode for that engine, allowing you to see suggestions (if available) for your search terms. The old behavior (immediately performing a search) is available with a shift-click.
• When Firefox autocompletes the URL of one of your search engines, you can now search with that engine directly in the address bar by selecting the shortcut in the address bar results.
• We have added buttons at the bottom of the search panel to allow you to search your bookmarks, open tabs, and history.
• Our users in India on the English build of Firefox will now see Pocket recommendations in their new tab featuring some of the best stories on the web.

Firefox 56 was released on September 28, 2017. This article lists key changes that are useful for web developers.

Changes for Web developers

Developer Tools

• Display Negative Line Numbers in CSS Grid Inspector (bug 1369942).
• The new CSS Grid Layout Panel is now available, allowing much better CSS Grid debugging facilities (bug 1181227). See Powerful New Additions to the CSS Grid Inspector in Firefox Nightly for more details.

HTML

• Implemented the labels property for labelable form controls, for example HTMLInputElement.labels (bug 556743).
• Implemented <link>; see Preloading content with for more details (bug 1222633). Note that currently Firefox only supports preloading of cacheable resources.

CSS

• Implemented the proprietary Mozilla-specific <color> values -moz-win-accentcolor and -moz-win-accentcolortext (see bug 1344910), and the proprietary media query -moz-windows-accent-color-in-titlebar (see bug 1379938).

SVG

JavaScript

• The Intl API has been enabled on Firefox for Android (bug 1344625).

APIs

New APIs

No changes.

DOM

• On Mac, Document.hidden is now true when the window is behind another non-translucent application bug 1236512.
• The Gamepad.displayId property has been implemented (bug 1375816).
• The PerformanceTiming.secureConnectionStart property has been implemented (bug 772589).
• Firefox used to accept iso-2022-jp-2 sequences silently when an iso-2022-jpTextDecoder() was instantiated, however this has now been removed to simplify the API, as no other browsers support it and no pages seem to use it. (bug 715833).
• The 4ms clamping behavior of setTimeout() and setInterval() has been updated to be more in line with other browsers, as described in Timeouts throttled to >=4ms (bug 1378586).
• The Page Visibility API'sDocument.onvisibilitychange handler has been added (bug 1333912).
• The Window.showModalDialog() method has been removed (bug 981796).
• The implementation of the HTMLFormElement.action, HTMLInputElement.formAction, and HTMLButtonElement.formAction properties has been updated so that they return the correct form submission URL, as per spec (bug 1366361).

DOM events

• GlobalEventHandlers.onwheel is now available on HTMLElement — it wasn't before (bug 1370550).

Media and WebRTC

• Firefox now supports the RTCPeerConnection properties which let you examine the current and pending configurations of the local and remote ends of the connection, to help manage changes in configuration: currentLocalDescription, pendingLocalDescription, currentRemoteDescription, and pendingRemoteDescription.
• Hardware encoding of media is now enabled by default on Android; it was available but disabled by default in Firefox 55 (bug 1386974). This supports higher-efficiency encoding of VP8 media on devices that provide support for it. This saves battery life and processor power, generally improving the performance of the user's device.

Canvas and WebGL

• The CanvasRenderingContext2D.drawImage() method has been updated so that smoothing occurs when downscaling even if imageSmoothingEnabled is false. This is not mandatory as per spec, but follows Chrome's behavior. See bug 1360415.
• An SVGImageElement can now be used as a CanvasImageSource, e.g. as the image source in a drawImage() call (bug 1382027).

Security

Plugins

• Firefox for Android has removed all support for plugins (bug 1381916).

Other

• Gecko now encodes URLs internally as punycode, to avoid URL encoding problems (see bug 945240, also see discussion in bug 942074).
• Firefox on Windows and Mac OS X can now be made to run in headless mode using the -headless flag (see bug 1355150 and bug 1355147).

Removals from the web platform

HTML

• The <isindex> element has been removed from the HTML parser, and from form submission (bug 1266495).
• The <applet> element has been removed (bug 1279218).

APIs

SVG

No changes.

Changes for add-on and Mozilla developers

WebExtensions

• browsingData.RemovalOptions gets 'hostnames' option for cookies
• browsingData.settings() and browsingData.removeCookies() are now supported on Firefox for Android
• browser_style usage is changed
• contextMenus renamed to menus
• cookies.set() and cookies.remove() now work in private browsing mode
• downloads.open() can now only be called from a user action
• history.onVisited now includes the page title if it is known.
• management.get() and management.getAll()
• menus now supports the 'tools_menu' context
• menus.OnClickData now has 'linkText'
• menus.create() now has an 'icons' option
• pageAction.show() and pageAction.hide() are now supported on Firefox for Android
• permissions now supports 'unlimitedStorage'
• privacy.services now includes passwordSavingEnabled
• protocol_handlers now supports 'gopher'
• proxy.registerProxyScript() is renamed to proxy.register()
• runtime.onInstalled gets temporary flag
• tabs.print(), tabs.PageSettings, tabs.printPreview(), tabs.saveAsPDF()
• windows.create() and windows.update() now support prefacing window title

See also

Mozilla Firefox 56.0 Download 32 Bit

Mozilla Firefox 56.0 Free Download

Older versions