Firefox

version history

History
Firefox Download Button For Your Site:

Firefox Download Button

If you want to place a download button for Firefox on your website just insert the following code to your web.

Firefox Windows 7 compatible

v28.0-SSL
April 4, 2014

NEW You can now run more than one service at a time with Firefox SocialAPI, allowing you to receive notifications, chat and more from multiple integrated services CHANGED Enabled TLS 1.1 (RFC 4346) and TLS 1.2 (RFC 5246) by default CHANGED Added support for SPDY 3.1 protocol DEVELOPER Ability to reset style sheets using 'all:unset' DEVELOPER You can now choose to deobfuscate javascript in the debugger (see 762761) DEVELOPER Added support for scrolled fieldsets (see 261037) DEVELOPER Implemented allow-popups directive for iframe sandbox, enabling increased security (see 766282) DEVELOPER CSS cursor keywords -moz-grab and -moz-grabbing have been unprefixed (see 880672) DEVELOPER Added support for ES6 generators in SpiderMonkey (see blog post) DEVELOPER Implemented support for mathematical function Math.hypot() in ES6 (see 896264) HTML5 Dashed line support on Canvas (see 768067) FIXED Get Azure/Skia content rendering working on Linux (see 740200) FIXED 27.0: Security fixes can be found here

v27.0
February 7, 2014

NEW You can now run more than one service at a time with Firefox SocialAPI, allowing you to receive notifications, chat and more from multiple integrated services CHANGED Enabled TLS 1.1 (RFC 4346) and TLS 1.2 (RFC 5246) by default CHANGED Added support for SPDY 3.1 protocol DEVELOPER Ability to reset style sheets using 'all:unset' DEVELOPER You can now choose to deobfuscate javascript in the debugger (see 762761) DEVELOPER Added support for scrolled fieldsets (see 261037) DEVELOPER Implemented allow-popups directive for iframe sandbox, enabling increased security (see 766282) DEVELOPER CSS cursor keywords -moz-grab and -moz-grabbing have been unprefixed (see 880672) DEVELOPER Added support for ES6 generators in SpiderMonkey (see blog post) DEVELOPER Implemented support for mathematical function Math.hypot() in ES6 (see 896264) HTML5 Dashed line support on Canvas (see 768067) FIXED Get Azure/Skia content rendering working on Linux (see 740200) FIXED 27.0: Security fixes can be found here

v26.0
December 13, 2013

NEW All Java plug-ins are defaulted to 'click to play' NEW Password manager now supports script-generated password fields NEW Updates can now be performed by Windows users without write permissions to Firefox install directory (requires Mozilla Maintenance Service) NEW Support for H.264 on Linux if the appropriate gstreamer plug-ins are installed CHANGED Support for MP3 decoding on Windows XP, completing MP3 support across Windows OS versions CHANGED CSP implementation now supports multiple policies, including the case of both an enforced and Report-Only policy, per the spec DEVELOPER Social API now supports Social Bookmarking for multiple providers through its SocialMarks functionality (see MDN docs) DEVELOPER Math.ToFloat32 takes a JS value and converts it to a Float32, whenever possible DEVELOPER There is no longer a prompt when websites use appcache DEVELOPER Support for the CSS image orientation property DEVELOPER New App Manager allows you to deploy and debug HTML5 webapps on Firefox OS phones and the Firefox OS Simulator DEVELOPER IndexedDB can now be used as a "optimistic" storage area so it doesn't require any prompts and data is stored in a pool with LRU eviction policy, in short temporary storage FIXED When displaying a standalone image, Firefox matches the EXIF orientation information contained within the JPEG image (298619) FIXED Text Rendering Issues on Windows 7 with Platform Update KB2670838 (MSIE 10 Prerequisite) or on Windows 8.1 (812695) FIXED Improved page load times due to no longer decoding images that aren't visible (847223) FIXED AudioToolbox MP3 backend for OSX (914479) FIXED Various security fixes

v25.0.1
November 22, 2013

FIXED 25.0.1: New security fixes can be found here FIXED 25.0.1: Pages sometimes wouldn't load without first moving the cursor NEW Web Audio support NEW The find bar is no longer shared between tabs CHANGED If away from Firefox for months, you now will be offered the option to reset it to its default state while preserving your essential information CHANGED Resetting Firefox no longer clears your browsing session DEVELOPER CSS3 background-attachment:local support to control background scrolling DEVELOPER Many new ES6 functions implemented HTML5 iframe document content can now be specified inline FIXED Blank or missing page thumbnails when opening a new tab

v25.0
November 1, 2013

NEW Web Audio support NEW The find bar is no longer shared between tabs CHANGED If away from Firefox for months, you now will be offered the option to reset it to its default state while preserving your essential information CHANGED Resetting Firefox no longer clears your browsing session DEVELOPER CSS3 background-attachment:local support to control background scrolling DEVELOPER Many new ES6 functions implemented HTML5 iframe document content can now be specified inline FIXED Blank or missing page thumbnails when opening a new tab FIXED Security fixes can be found here

v24.0
September 20, 2013

NEW Support for new scrollbar style in Mac OS X 10.7 and newer NEW Implemented Close tabs to the right NEW Social: Ability to tear-off chat windows to view separately by simply dragging them out CHANGED Accessibility related improvements on using pinned tabs (see 577727) CHANGED Removed support for Revocation Lists feature (see 867465) CHANGED Performance improvements on New Tab Page loads (see 791670) DEVELOPER Major SVG rendering improvements around Image tiling and scaling (see 600207 ) DEVELOPER Improved and unified Browser console for enhanced debugging experience, replacing existing Error console DEVELOPER Removed support for sherlock files that are loaded from application or profile directory FIXED Replace fixed-ratio audio resampler in webrtc.org capture code with Speex resampler and eliminate pseudo-44000Hz rate ( see 886886) FIXED 24.0: Security fixes can be found here

v23.0.1
August 23, 2013

FIXED 23.0.1 - Rendering glitches on H.264 video only in FF23 on Vista (901944) FIXED 23.0.1 - Spellchecking broken with non-ASCII characters in profile path (902532) FIXED 23.0.1 - Audio static/"burble"/breakup in Firefox to Firefox WebRTC calls (901527) NEW Mixed content blocking enabled to protects users from man-in-the-middle attacks and eavesdroppers on HTTPS pages (learn more) NEW Options panel created for Web Developer Toolbox CHANGED "Enable JavaScript" preference checkbox has been removed and user-set values will be reset to the default CHANGED Updated Firefox Logo CHANGED Improved about:memory's functional UI CHANGED Simplified interface for notifications of plugin installation CHANGED Enabled DXVA2 on Windows Vista+ to accelerate H.264 video decoding CHANGED Users can now switch to a new search provider across the entire browser CHANGED CSP policies using the standard syntax and semantics will now be enforced CHANGED "Load images automatically" and Always show the tab bar" checkboxes removed from preferences and reset to defaults. Want to hide one tab? Try this add-on. CHANGED <input type='file'> rendering improvements (see bug 838675) DEVELOPER HTML5 <input type="range"> form control implemented DEVELOPER Implemented a global browser console DEVELOPER Social share functionality DEVELOPER Added unprefixed requestAnimationFrame DEVELOPER Write more accessible pages on touch interfaces with new ARIA role for key buttons DEVELOPER Dropped blink effect from text-decoration: blink; and completely removed <blink> element DEVELOPER New feature in toolbox: Network Monitor FIXED Various security fixes

v23.0
August 9, 2013

NEW Mixed content blocking enabled to protects users from man-in-the-middle attacks and eavesdroppers on HTTPS pages (learn more) NEW Options panel created for Web Developer Toolbox CHANGED "Enable JavaScript" preference checkbox has been removed and user-set values will be reset to the default CHANGED Updated Firefox Logo CHANGED Improved about:memory's functional UI CHANGED Simplified interface for notifications of plugin installation CHANGED Enabled DXVA2 on Windows Vista+ to accelerate H.264 video decoding CHANGED Users can now switch to a new search provider across the entire browser CHANGED CSP policies using the standard syntax and semantics will now be enforced CHANGED <input type='file'> rendering improvements (see bug 838675) CHANGED Replace fixed-ratio audio resampler in webrtc.org capture code with Speex resampler and eliminate pseudo-44000Hz rate CHANGED "Load images automatically" and Always show the tab bar" checkboxes removed from preferences and reset to defaults DEVELOPER HTML5 <input type="range"> form control implemented DEVELOPER Write more accessible pages on touch interfaces with new ARIA role for key buttons DEVELOPER Social share functionality DEVELOPER Added unprefixed requestAnimationFrame DEVELOPER Implemented a global browser console DEVELOPER Dropped blink effect from text-decoration: blink; and completely removed <blink> element DEVELOPER New feature in toolbox: Network Monitor FIXED Various security fixes

v22.0
June 28, 2013

NEW WebRTC is now enabled by default! NEW Windows: Firefox now follows display scaling options to render text larger on high-res displays NEW Mac OS X: Download progress in Dock application icon NEW HTML5 audio/video playback rate can now be changed NEW Social services management implemented in Add-ons Manager NEW asm.js optimizations (OdinMonkey) enabled for major performance improvements CHANGED Improved WebGL rendering performance through asynchronous canvas updates CHANGED Plain text files displayed within Firefox will now word-wrap CHANGED For user security, the |Components| object is no longer accessible from web content CHANGED Pointer Lock API can now be used outside of fullscreen DEVELOPER CSS3 Flexbox implemented and enabled by default DEVELOPER New Web Notifications API implemented DEVELOPER Added clipboardData API for JavaScript access to a user's clipboard DEVELOPER New built-in font inspector HTML5 New HTML5 <data> and <time> elements FIXED Various security fixes FIXED Scrolling using some high-resolution-scroll aware touchpads feels slow (829952)

v21.0
May 24, 2013

NEW The Social API now supports multiple providers NEW Enhanced three-state UI for Do Not Track (DNT) NEW Firefox will suggest how to improve your application startup time if needed NEW Preliminary implementation of Firefox Health Report CHANGED Ability to restore removed thumbnails on New Tab Page CHANGED CSS -moz-user-select:none selection changed to improve compatibility with -webkit-user-select:none (bug 816298) CHANGED Graphics related performance improvements (bug 809821) CHANGED Removed E4X support from Spidermonkey DEVELOPER Implemented Remote Profiling DEVELOPER Integrated add-on SDK loader and API libraries into Firefox HTML5 Added support for <main> element HTML5 Implemented scoped stylesheets HTML5 Added support for window.crypto.getRandomValues FIXED Some function keys may not work when pressed (833719) FIXED Browsing and Download history clearing needs unification to avoid confusion on clearing download history (847627) FIXED 21.0: Security fixes can be found here

v4.0.1
May 6, 2011

Firefox 4.0.1 fixes the following issues found in previous versions of Firefox 4: Fixed several security issues. Fixed several stability issues. Please see the complete list of changes in this version. You may also be interested in the Firefox 4 release notes for a list of changes in the previous version.

v4.0
March 25, 2011

Firefox 4 is based on the Gecko 2.0 Web platform. This release features JavaScript execution speeds up to six times faster than the previous version, new capabilities for Web Developers and Add-on Developers such as hardware accelerated graphics and HTML5 technologies, and a completely revised user interface. Please read below for more detailed information about what's new in this version of the release, as well as the known issues. 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 Developers can find out about all the changes and new features at the Mozilla Developer Center.

v3.6.15
March 11, 2011

Firefox 3.6.15 fixes the following issues found in previous versions of Firefox 3.6: Fixed an issue where some Java applets would fail to load in Firefox 3.6.14 You may also be interested in the Firefox 3.6.14 release notes for a list of changes in the previous version.

v3.6.14
March 4, 2011

Firefox 3.6.14 fixes the following issues found in previous versions of Firefox 3.6: Fixed several security issues. Fixed several stability issues. Please see the complete list of changes in this version. You may also be interested in the Firefox 3.6.13 release notes for a list of changes in the previous version.

v3.6.13
December 10, 2010

Firefox 3.6.13 fixes the following issues found in previous versions of Firefox 3.6: Fixed several security issues. Fixed several stability issues. Please see the complete list of changes in this version. You may also be interested in the Firefox 3.6.12 release notes for a list of changes in the previous version.

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