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Mozilla firefox latest version 2021
Official Firefox 8. Added a one-time add-on selection dialog to manage previously installed add-ons. Added Twitter to the search bar. Added a preference to load tabs on demand, improving startup time when windows are restored. Added support for HTML5 context menus. Improved CSS hyphen support for many languages. Improved WebSocket support. Changes during betas Removed support for new tab animation due to incompatibilities with some extensions.
Fixed Windows startup crash caused by RoboForm versions older than 7. Official Firefox 9. Added support for the font-stretch CSS property. Improved support for the text-overflow CSS property. Anti-Aliasing for WebGL is now implemented. CSS3 3D-Transforms are now supported. Full Screen APIs allow you to build a web application that runs full screen. Regular security and stability update. Fixed extensions. Addressed a fix that allows specifying wildcard that matches all simple netbiosnames in network.
Regular security update. SPDY protocol support disabled by default. Page Inspector Tilt 3D View. Sync Add-ons. Redesigned HTML5 video controls. Style Editor CSS.
Last release for Windows Page Source now has line numbers. Line breaks are now supported in the title attribute. Improvements to “Find in Page” to center search result. URLs pasted into the download manager window are now automatically downloaded. Support for the text-align-last CSS property has been added.
Some TinyMCE-based editors failed to load. The default home page now has quicker access to bookmarks, history, settings, and more. SPDY protocol now enabled by default for faster browsing on supported sites. Restored background tabs are not loaded by default for faster startup. Smooth scrolling is now enabled by default. The column-fill CSS property has been implemented. Support for the CSS3 background-position property extended syntax has been added. The :invalid pseudo-class can now be applied to the element.
The CSS turn angle unit is now supported. Fixed the Hebrew text that was sometimes rendered incorrectly. Fixed an issue in Adobe Flash Android Official Firefox Mobile Plugins can now be configured to only load on click about:config.
The Awesome Bar now auto-completes typed URLs, a new feature that will suggest a website that user frequently visits for a faster browsing. Pointer Lock API implemented. New API to prevent your display from sleeping. Long URLs now extend the status bar almost to the whole width of the viewport. GStreamer support is not enabled in the official builds, but can be enabled at compile time. Desktop Official Firefox Desktop Support for SPDY networking protocol v3. WebGL enhancements, including compressed textures for better performance.
New responsive design tool allows web developers to switch between desktop and mobile views of sites. Native support for the Opus audio format added. The source element now supports the media attribute. Fixed the focus rings that keep growing when repeatedly tabbing through elements.
Opus support by default. Reverse animation direction has been implemented. Per tab reporting in about:memory. User Agent strings for pre-release Firefox versions now show only major version. Click-to-play blocklisting implemented to prevent vulnerable plugin versions from running without the user’s permission.
Fixed pointer lock that doesn’t work in web apps. Fixed page scrolling on sites with fixed headers. Fixed font rendering issue. Regular security and stability updates. Fixed improvements to the Click-to-Play vulnerable plugin blocklisting feature. Support for Retina displays on OS X Preliminary support for WebRTC. Performance improvements around tab switching. Support for new DOM property window. Improvement in startup time through smart handling of signed extension certificates.
Support for W3C touch events implemented, taking the place of MozTouch events. Improved responsiveness for users on proxies. Changes during Aurora releases Adds a Metro user interface on Windows 8. Fixed unity player crashes on Mac OS X.
Canvas elements can export their content as an image blob using canvas. Startup performance improvements. Debugger now supports pausing on exceptions and hiding non-enumerable properties.
There is now a Browser Debugger available for add-on and browser developers experimental, set devtools. CSS page is now supported. CSS viewport-percentage length units implemented vh, vw, vmin and vmax.
CSS text-transform now supports full-width. Fixed certain valid WebGL drawing operations that were incorrectly rejected, leaving incomplete rendering in affected pages.
Fixed an issue that starting Firefox with -private flag incorrectly claims you are not in Private Browsing mode. Fixed plugins that stop rendering when the top half of the plugin is scrolled off the top of the page, in HiDPI mode.
New download experience. Ability to close hanging plugins, without the browser hanging. Continued performance improvements around common browser tasks page loads, downloads, shutdown, etc.
Ability to Restore removed thumbnails on New tab Page. CSS -moz-user-select:none selection changed to improve compatibility with -webkit-user-select:none. Graphics related performance improvements. Removed E4X support from SpiderMonkey. Implemented Remote Profiling. Implemented scoped stylesheets. Fixed: Some function keys may not work when pressed. Fixed: Browsing and Download history clearing needs unification to avoid confusion on clearing download history.
Windows: Firefox now follows display scaling options to render text larger on high-res displays. Social services management implemented in Add-ons Manager. Improved WebGL rendering performance through asynchronous canvas updates. Plain text files displayed within Firefox will now word-wrap. For user security, the Components object is no longer accessible from web content. Improved memory usage and display time when rendering images.
Pointer Lock API can now be used outside of fullscreen. CSS3 Flexbox implemented and enabled by default. New built-in font inspector. Mixed content blocking enabled to protects users from man-in-the-middle attacks and eavesdroppers on HTTPS pages. Options panel created for Web Developer Toolbox. Improved about:memory’s functional UI. Simplified interface for notifications of plugin installation.
Users can now switch to a new search provider across the entire browser. CSP policies using the standard syntax and semantics will now be enforced. Replaced fixed-ratio audio resampler in webrtc. Write more accessible pages on touch interfaces with new ARIA role for key buttons.
Social share functionality. Added unprefixed requestAnimationFrame. Implemented a global browser console. New feature in toolbox: Network Monitor. Implemented Close tabs to the right. Social: Ability to tear-off chat windows to view separately by simply dragging them out.
Accessibility related improvements on using pinned tabs. Removed support for Revocation Lists feature. Performance improvements on New Tab Page loads. Major SVG rendering improvements around Image tiling and scaling. Improved and unified Browser console for enhanced debugging experience, replacing existing Error console.
Removed support for sherlock files that are loaded from application or profile directory. Updated Mozilla to NSS 3. Fixed an issue where some UI strings in Firefox The find bar is no longer shared between tabs. If away from Firefox for months, you now will be offered the option to migrate another browser’s history and settings. Resetting Firefox no longer clears your browsing session.
CSS3 background-attachment:local support to control background scrolling. Many new ES6 functions implemented. Fixed blank or missing page thumbnails when opening a new tab. Password manager now supports script-generated password fields.
There is no longer a prompt when websites use appcache. Support for the CSS image orientation property. IndexedDB can now be used as an “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.
Improved page load times due to no longer decoding images that are not visible. Off-cycle stability mobile release. Fixed: About:home is missing translations in some locales. Fixed: In some cases, the clip set on the page doesn’t update when the addressbar hides. Fixed: Invalid position:fixed rendering. Enabled TLS 1. Added support for SPDY 3.
Added support for ES6 generators in SpiderMonkey. Implemented support for mathematical function Math. Dashed line support on Canvas. Off-cycle stability release.
New tabs provide an overall smoother look and fade into the background when not active. An interactive onboarding tour to guide users through the new Firefox changes.
Added the ability to set up Firefox Sync by creating a Firefox account. Gamepad API finalized and enabled. Malay [ma] locale added. Clicking on a W3C Web Notification will switch to the originating tab.
Console object available in web workers. Promises enabled by default. SharedWorker enabled by default. Add-on bar has been removed, content moved to navigation bar.
No longer possible to move tabs from the top of the browser without an add-on. Fixed: Tabs not visible with dark themes under Windows 8.
Fixed: Session Restore failed with a corrupted sessionstore. Fixed: Seer disabled by default. Mac OS X command-E sets find term to selected text. Support for GStreamer 1. Disallowed calling WebIDL constructors as functions on the web. With the exception of those bundled inside an extension or ones that are whitelisted, plugins will no longer be activated by default. Fixes to box-shadow and other visual overflow. Mute and volume available per window when using WebAudio. Background-blend-mode enabled by default.
ES6 array and generator comprehensions implemented. Error stack now contains column number. Support for alpha option in canvas context options. Fixed TypedArrays that don’t support new named properties. Blocks malware from downloaded files. Support of Prefer:Safe http header for parental control. Upper Sorbian [hsb] locale added. Removal of the CAPS infrastructure for specifying site-specific permissions via capability.
Most notably, attempts to use this functionality to grant access to the clipboard will no longer work. WebVTT implemented and enabled. CSS3 variables implemented. Developer Tools: Add-on Debugger. Developer Tools: Canvas Debugger. New Array built-in: Array. New Object built-in: Object. CSP 1. Developer Tools: Eyedropper tool added to the color picker. Developer Tools: Editable Box Model.
Developer Tools: Code Editor improvements. Developer Tools: Console stack traces. Developer Tools: Styled console logs. Dialogs spawned from the onbeforeunload event no longer block access to the rest of the browser. Fixed: Search for partially selected link text from context menu. Fixed: Intermittent failures in add-ons manager mochitest-browser tests.
Fixed: Error building nsChildView. Last release for Android for ARMv6 devices. Integration of generational garbage collection.
Public key pinning support enabled. Displays the number of found items in the find toolbar. Easier back, forward, reload, and bookmarking through the context menu. Views historical use information for logins stored in password manager.
Lower Sorbian [dsb] locale added. Removed and turned off trust bit for some bit root certificates. Performance improvements to Password Manager and Add-on Manager. CSS position:sticky enabled by default. CSS box-decoration-break replaces -moz-background-inline-policy. Inspector button moved to the top left.
Hidden nodes displayed differently in the markup-view. New Web Audio Editor. Code completion and inline documentation added to Scratchpad. Fixed mixed content icon that may be incorrectly displayed instead of lock icon for SSL sites. Android  Fixed link tap selection that was offset on some Android devices.
Displayed which elements have listeners attached. New sidebar which displays a list of shortcuts to every media rule in the current stylesheet. Paint flashing for browser content repaints. Editable keyframes rules in the Rules section of the Inspector.
CSS transform highlighter in the style-inspector. Fixed incomplete downloads being marked as complete by detecting broken HTTP1. Fixed two startup crashes with some combination of hardware and drivers. Firefox’s year anniversary. Enhanced tiles. Privacy tour introduced. Adding DuckDuckGo as a search option. Improved search bar en-US only. Firefox Hello real-time communication client. Recover from a locked Firefox process in the “Firefox is already running” dialog on Windows.
Support for inspecting ::before and ::after pseudo elements. Computed view: Nodes matching the hovered selector are now highlighted. Reduced resource usage for scaled images. Fixed a potential startup crash. Fixed Kerberos authentication failure with alias.
Fixed a crash on Godaddy webmail. Fixed an update failure of document. CSP had a change in behavior with regard to case sensitivity resources loading. Locale added: Uzbek UZ. Remote option removed.
Improved ES6 generators for better performance. Eval sources now appear in the Debugger. DOM Promises inspection. Inspector: More paste options in markup view. CSS gradients work on premultiplied colors. Fixed some unexpected logout from Facebook or Google after restart.
Fixed a startup crash with EMET. Fixed the Hello contact that may become inactive until restart. Fixed print preferences that may not be preserved. Fixed Hello contact tabs that may not be visible. Fixed the WebGL that may use significant memory with Canvas2d. Option -remote has been restored. Fixed a top crash. Fixed some potential crashes with Flash videos. Yandex set as default search provider for the Turkish locale. Improved protection against site impersonation via OneCRL centralized certificate revocation.
Disabled insecure TLS version fallback for site security. Extended SSL error reporting for reporting non-certificate errors. Improved performance of WebGL rendering on Windows. Added support for CSS display:contents.
IndexedDB now accessible from worker threads. New Inspector animations panel to control element animations. New Security Panel included in Network Panel. Added logging of weak ciphers to the web console. Off-cycle stability and security update. Desktop Fixed start-up crash due to graphics hardware and third-party software. Fixed stability issues for some graphics hardware and feature sets. Security fixes.
Android Fixed an issue related to the “request desktop site” feature. Ruby annotation support. Base for the next ESR release. Improved page load times via speculative connection warmup.
WebSocket now available in web workers. BroadcastChannel API implemented. Optimized-out variables are now visible in Debugger UI. XMLHttpRequest logs in the web console are now visually labelled and can be filtered separately from regular network requests. WebRTC now has multistream and renegotiation support. Fixed a problem in which users who import cookies from Google Chrome can end up with broken websites.
Fixed a problem that large animated images may fail to play and may stop other images from loading. Android Fixed a crash on start-up on devices for which Firefox does not support Android hardware acceleration. Implementation of Reader View. Share the active tab or window in a Hello conversation.
Fixed a problem that would cause Firefox to stop painting when switching tabs. Fixed graphics performance when using the built-in VGA driver on Windows 7. Fixed various stability fixes. Desktop Off-cycle update. Fixes bugs in Firefox Note: This release is only available from the Mozilla archives. Fixed: Firefox may crash during mp4 video playback. Fixed branded Firefox application that does not open URLs in system default browser.
Fixed significant memory leak with GreaseMonkey add-on. Fixed ESRs that would not build on hppa platform. Off-cycle graphite2 library update. Disabled Graphite font shaping library. Support for ‘switch’ role in ARIA 1. Support for new Unicode 8. Removed support for insecure SSLv3 for network communications. Disable use of RC4 except for temporarily whitelisted hosts.
The malware detection service for downloads now covers common Mac file types. Performance of displaying dashed lines is improved on Mac OS X. List-style-type now accepts a string value. Enable the Fetch API for network requests from dedicated, shared and service workers. Cascading of CSS transitions and animations now matches the current spec. Drag and drop enabled for nodes in Inspector markup view. Webconsole input history persists even after closing the toolbox. Cubic bezier tooltip now shows a gallery of timing-function presets for use with CSS animations.
Improve performance for IPv6 fallback to IPv4. Fixed the security state indicator on a page now correctly ignores loads caused by previous pages. Fixed an issue where a Hello conversation window would sometimes fail to open.
Fixed a regression that could lead to Flash not displaying has been fixed. Update to NSS 3. Added protection against unwanted software downloads.
User can receive suggested tiles in the new tab page based on categories Firefox matches to browsing history en-US only. Hello allows adding a link to conversations to provide context on what the conversation will be about.
New style for add-on manager based on the in-content preferences style. Improved scrolling, graphics, and video playback performance with off-main-thread compositing Linux only. Graphic blocklist mechanism improved: Firefox version ranges can be specified, limiting the number of devices blocked.
Add-on extensions that are not signed by Mozilla will display a warning. Smoother animation and scrolling with hardware vsync Windows only. JPEG images use less memory when scaled and can be painted faster.
Sub-resources can no longer request HTTP authentication, thus protecting users from inadvertently disclosing login data. IndexedDB transactions are now non-durable by default. Implemented AudioBufferSourceNode. New page ruler highlighting tool that displays lightweight horizontal and vertical rules on a page. Inspector now searches across all content frames in a page. Fixed Kannada text that does not display properly in built-in pdf viewer.
Fixed mozalloc. Fixed a startup crash with some combination of hardware and drivers. Fixed a segmentation fault in the GStreamer support Linux only.
Fixed a startup crash when using DisplayLink Windows only. Fixed an issue that the selection in a select combox box using the mouse could be broken on some sites.
Fixed an issue that some search partner codes were missing. Ability to set a profile picture for your Firefox Account. Firefox Hello now includes instant messaging.
SVG images can be used as favicons. Improved box-shadow rendering performance. WebRTC now requires perfect forward secrecy. WARP is disabled on Windows 7. Updates to image decoding process. Support for running animations of ‘transform’ and ‘opacity’ on the compositor thread. Added support for the transform-origin property on SVG elements.
Network requests can be exported in HAR format. Screenshots a node or element from markup view with the Screenshot Node context menu item. Pseudo-Class panel in the Inspector. Fixed potential hangs with Flash plugins. Fixed a regression in the bookmark creation. Fixed a startup crash with some Intel Media Accelerator graphic cards.
Fixed a graphic crash, occurring occasionally on Facebook. Control Center that contains site security and privacy controls. Indicator added to tabs that play audio with one-click muting.
Improved ability for applications to monitor and control which devices are used in getUserMedia. Login Manager improvements: Improved heuristics to save usernames and passwords. Improved performance on interactive websites that trigger a lot of restyles. Implemented ES6 Reflect. Support for ImageBitmap and createImageBitmap. Viewing HTML source in a tab. Asynchronous call stacks now allow web developers to follow the code flow through setTimeout, DOM event handlers, and Promise handlers.
CSS filter presets in the Inspector. Improved API support for m4v video playback. Firefox bit for Windows is now available via the Firefox download page. Users can choose search suggestions from the Awesome Bar. On-screen keyboard displayed on selecting input field on devices running Windows 8 or greater.
Firefox Health Report has switched to use the same data collection mechanism as telemetry. Markup view shows indicators for pseudo-classes locked for elements. Binding F1 key to open the settings when the toolbox is focused. New ‘Use in Console’ context menu item in Inspector to store selected element in a temporary variable. Search button next to overridden CSS properties to find similar properties in the rules view. Ability to filter styles from their property names in the rules view.
Stack traces are now shown for exceptions inside the console. Added ability to display server-side logs in the console. Subresource integrity allows developers to make their sites more secure. Network requests in Console now link to Network panel instead of opening in a popup. Unprefixed ‘hyphens’ property is now supported. The ‘transform-origin’ property is now supported on SVG elements. Animation inspector now displays animations in a timeline.
Fixed an issue in which the Eyedropper tool does not work as expected when page is zoomed. Various security fixes. Desktop Off-cycle security and stability update. Improved the decoding of some videos on YouTube on some Windows configurations. Multi-user Linux download folders can be created. Re-enabled SHA-1 certificates. The last version to support HTTP cookie prompts.
Enabled H. In the animation-inspector timeline, lightning bolt icon next to animations running on the compositor thread. Screenshot commands allow user choice of pixel ratio in Developer Tools. Fixed an issue where Windows XP and Vista screensaver doesn’t disable when watching videos.
To support unicode-range descriptor for webfonts, font matching under Linux now uses the same font matching code as other platforms. Use of a SHA signing certificate for Windows builds, to meet new signing requirements. Firefox has removed support for the RC4 decipher.
Stricter validation of web fonts. On-screen keyboard support temporarily turned off for Windows 8 and Windows 8. Right-clicking on a logged object in the console to store it as a global variable on the page. Visual tools for Animation:. Visually modify the cubic-bezier curve that drives the way animations progress through time. Discover and scrub through all CSS animations and transitions playing on the page. Visual tools for Layout and Styles: Display rulers along the viewport to verify size and position and use the measurement tool to easily detect spacing and alignment problems.
Use CSS filters to preview and create real-time effects like drop-shadows, sepia, etc.. New memory tool for inspecting the memory heap. Service Workers API. Built-in JSON reader to intuitively view, search, copy and save data without extensions. A jump to function definitions in the debugger with Cmd-Click. The rule view now displays styles using their authored text, and edits in the rule view are now linked to the style editor. Changes during Nightly releases This and newer versions erase the cookie permissions database of any previous Firefox version.
Allows spaces in cookie names. Requires NSS 3. Fixed a crash in cache networking. Fix for using WebSockets in service worker controlled pages. Shipment for the Gecko SDK. Fix for graphics startup crash on Linux. Tabs synced via Firefox Accounts from other devices are now shown in dropdown area of Awesome Bar when searching.
Synced Tabs button in button bar. Introduces a new preference network. Guarani [gn] locale added. Tab Groups Panorama feature removed. Ability to filter snapshot output in memory tool.
Fine-tuning animations by changing the playback rate of animations in the animation-inspector’s timeline. DOMContentLoaded and load events shown in the network monitor timeline. Added Negative url filtering for the network monitor.
Support for diffing heap snapshots added to the memory tool. Inspector search now matches results from all content in the page, including subframes. List of animated properties and keyframes is now displayed when clicking on an animation in the animation-inspector’s timeline.
Web Speech synthesis API. ES6 Classes. Fix for a regression causing search engine settings to be lost in some context. Fix for an issue which could cause the list of search provider to be empty.
Fix for a regression when using the location bar. Fix for some loading issues when Accept third-party cookies : was set to Never.
Fix for a web compatibility regression impacting the srcset attribute of the image tag. Fix for a crash impacting the video playback with Media Source Extension. Fix for a regression impacting some specific uploads. Desktop Fix for a regression with the copy and paste with some old versions of some Gecko applications like Thunderbird.
Android Last release for Android 3. Fixed add-on signing certificate expiration. View all Firefox Browsers. View all Products. Stories about how our people and products are changing the world for the better. Work for a mission-driven organization that makes people-first products. More About Mozilla. Building on Total Cookie Protection, we’ve added a more comprehensive logic for clearing cookies that prevents hidden data leaks and makes it easy for users to understand which websites are storing local information.
Learn more. Firefox now supports logging into Microsoft, work, and school accounts using Windows single sign-on. The simplify page when printing feature is back! HTTPS-First Policy: Firefox Private Browsing windows now attempt to make all connections to websites secure, and fall back to insecure connections only when websites do not support it.
Various bug fixes and new policies have been implemented in the latest version of Firefox. See more details in the Firefox for Enterprise 91 Release Notes. Download Firefox Firefox Privacy Notice.
Get Mozilla VPN. Firefox for Android Get the customizable mobile browser for Android smartphones. Firefox Focus Simply private mobile browsing. Privacy Promise Learn how Firefox treats your data with respect. Firefox Blog Read about new Firefox features and ways to stay safe online. Release Notes Get the details on the latest Firefox updates.
Mozilla firefox latest version 2021
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Mozilla firefox latest version 2021.Firefox Release Notes
Firefox was created by Dave Hyatt and Blake Ross as an experimental branch of the Mozilla browser, first released as Firefox 1. Starting with version 5. This was gradually accelerated further in late , so that new major releases occur on four-week cycles starting in In April , the development process was split into several “channels”, each working on a build in a different stage of development. The most recent available build is called “Nightly Builds” and offers the latest, untested features and updates.
The “Aurora” build is up to six weeks behind “Nightly” and offers functionality that has undergone basic testing. As of version 35, the “Aurora” channel has been renamed to the “Developer Edition” channel.
The “Beta” channel provides improved stability over the “Nightly” builds and is the first development milestone that has the “Firefox” logo. Gecko version numbering is the same as the Firefox build version number, starting with 5. The stated aim of this faster-paced process is to get new features to users faster. Firefox 5 was released on June 21, ,  three months after the major release of Firefox 4. Firefox 5 is the first release in Mozilla’s new rapid release plan, matching Google Chrome ‘s rapid release schedule and rapid version number increments.
Add-ons installed by third-party programs were disabled by default, but user-installed add-ons were enabled by default. Mozilla judged that third-party-installed add-ons were problematic, taking away user control, lagging behind on compatibility and security updates, slowing down Firefox startup and page loading time, and cluttering the interface with unused toolbars.
It also features a large list of bug fixes. End-of-life 5. End-of-life 6. End-of-life 7. End-of-life 8. End-of-life 9.
These WebGL updates mean that more complex site and Web app animations can render smoothly in Firefox, and that developers can animate 2D objects into 3D without plug-ins.
The add-on developer is able to alert Mozilla that the add-on is incompatible, overriding compatibility with version 10 or later. This new rule also does not apply to themes. Firefox 11 was released on March 13, Firefox 12 was released on April 24, Firefox 12 introduced few new features, but it made many changes and laid the ground work for future releases. Firefox 13 was released on June 5, Firefox 13 adds and updates several features, such as an updated new tab  and home tab page.
The new tab page will display nine of the user’s most visited websites, along with a cached image. Firefox 14 was released on June 26, , for mobile devices only, just outside the regular release schedule of the web browser. Mozilla uses this information to improve the responsiveness of Firefox for future releases. Mozilla wants to reduce potential problems that could arise through the unwanted use of third-party applications malware , freezing, etc.
Firefox 15 was released on August 28, , with a ” Responsive Design View ” developer tool,  adds support for the Opus audio format , and adds preliminary native PDF support disabled by default.
Firefox 15 introduced silent updates, an automatic update that will update Firefox to the latest version without notifying the user,  a feature that the web browsers Google Chrome and Internet Explorer 8 and above have already implemented,   although the user was able to disable that function. There were improvements made to startup speed when a user wants to restore a previous session.
Support for web apps was added. Opus audio format is now enabled by default. The roll-out of Firefox 16 revision End-of-life Official Firefox Mobile Official Firefox Desktop Firefox 17 is the first version of the browser that uses SpiderMonkey Firefox 18 was released on January 8, Firefox 19 was released on February 19, , featuring a built-in PDF viewer.
Firefox 20 was released on April 2, , introduced a panel-based download manager,   along with H. It also includes a new developer toolbox, that combines all developer tools into one panel.
The release includes support for the new scrollbar style in Mac OS X Firefox 25 was released on October 29, Firefox 25 Nightly was at one point slated to include the Australis theme, but Australis did not actually land on Nightly until Firefox 28,  did not make it to Firefox 28 Aurora channel, and was finally available with Firefox Firefox 26 was released on December 10, Firefox 26 changed the behavior of Java plugins to “click-to-play” mode instead of automatically running them.
It also added support for H. Firefox 27 was released on February 4, Firefox 28 was released on March 18, Firefox 29 was released on April 29, , and includes the Australis interface, it also removes the add-on bar and moves its content to the navigation bar. Firefox 30 was released on June 10, It adds support for GStreamer 1. Off-cycle stability mobile update. Both versions added search field on the new tab page and were improved to block malware from downloaded files, along with other new features.
Firefox Firefox 32 was released on September 2, Firefox 33 was released on October 14, It now has off-main-thread compositing OMTC enabled by default on Windows which brings responsiveness improvements ,  OpenH support, search suggestions on about:home and about:newtab, address bar search improvements, session restore reliability improvements, and other changes.
Firefox 34 was released on December 1, It also disables SSLv3 , and enables the ability to recover from a locked Firefox process and to switch themes and personas directly in the customization mode. Firefox 35 was released on January 13, It brings support for a room-based conversations model to the Firefox Hello chat service, and other functions, it also includes security fixes. Firefox 37 was released on March 31, , bringing a heartbeat user rating system, which provides user feedback about the Firefox, and improved protection against website impersonation via OneCRL centralized certificate revocation.
Desktop . Android . Off-cycle stability update. Official Firefox Both Firefox 38 and Firefox 38 ESR were released on May 12, , with new tab-based preferences, Ruby annotation support and availability of WebSockets in web workers, along with the implementation of the BroadcastChannel API and other features and security fixes. Firefox 40 was released on August 11, , for desktop and Android. On Windows 10 , the Australis theme was updated to reflect the overall appearance of Windows 10, and the interface is adapted for usability on touchscreens when used in the operating system’s “Tablet mode”.
Firefox 40 includes additional security features, including the filtering of pages that offer potentially unwanted programs , and warnings during the installation of unsigned extensions; in future versions, signing of extensions will become mandatory, and the browser will refuse to install extensions that have not been signed.
Firefox 40 also includes performance improvements, such as off-main-thread compositing on Linux. Firefox 41 was released on September 22, , for desktop and Android. Among many additions are the ability to set a profile picture for a Firefox account, enhanced IME support using Text Services Framework , and instant messaging on Firefox Hello. Firefox 42 was released on November 3, , for desktop and Android. Firefox 43 was released on December 15, , for desktop and Android.
Among many additions are the availability of the bit version for Windows 7 and above, a new strict blocklist, and audio indicators on Android.
Firefox 44 was released on January 26, , for desktop and Android. Among many additions are the improvement of warning pages for certificate errors and untrusted connections, enabling of H. Off-cycle security and stability update. Among many additions were Instant Browser sharing through Hello, the addition of Guarani locale, the ability to filter snapshot output in memory tool, and the removal of the Tab Groups panorama feature. Firefox 46 was released on April 26, , for both desktop and Android.
Firefox 47 was released on June 7, , for both desktop and Android. It is also the last Firefox version to support Android 2.