Added an opt-in system for users to send performance data back to Mozilla to improve future versions of Firefox. Fixed several security and stability issues. Last release for Maemo. 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. Localization in Maithili. Optimized memory usage for add-ons. JavaScript debugger integrated into developer tools. New layout view added to Inspector.

High precision event timer implemented. The CSS word-break property has been implemented. 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. Acholi and Kazakh localizations added. Improvements around JavaScript responsiveness through incremental garbage collection.

New Developer Toolbar with buttons for quick access to tools, error count for the Web Console, and a new command line for quick keyboard access. Recently opened files list in Scratchpad implemented. Fixed an issue where debugger breakpoints do not catch on page reload. No longer supporting MD5 as a hash algorithm in digital signatures. 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. Updated Awesome Bar experience with larger icons. Mac OS X JavaScript Maps and Sets are now iterable. Sandbox attribute for iframes implemented, enabling increased security. Over twenty performance improvements, including fixes around the New Tab page.

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. New JavaScript Profiler tool. Fixed: Details button on Crash Reporter. Preliminary implementation of Firefox Health Report.

Firefox will suggest how to improve your application startup time if needed. 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. Updates can now be performed by Windows users without write permissions to Firefox install directory requires Mozilla Maintenance Service. Support for H. CSP implementation now supports multiple policies, including the case of both an enforced and Report-Only policy, per the specification.

ToFloat32 takes a JavaScript value and converts it to a Float32, whenever possible. 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. Ability to reset style sheets using all:unset. You can now choose to deobfuscate javascript in the debugger. Added support for scrolled fieldsets.

Implemented allow-popups directive for iframe sandbox, enabling increased security. CSS cursor keywords -moz-grab and -moz-grabbing have been unprefixed. Added support for ES6 generators in SpiderMonkey. Implemented support for mathematical function Math. Dashed line support on Canvas. Off-cycle stability release. Fixed: JavaScript math correctness issue. Support for Opus in WebM. Support for MathML 2.

Background thread hang reporting. Support for multi-line flexbox in layout. Android Off-cycle stability mobile update. Fixed mobile-only security fix for file:paths.

A new menu sits in the right hand corner of Firefox and includes popular browser controls. 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. Desktop Off-cycle stability update. OpenH support sandboxed. Improved search experience through the location bar. Slimmer and faster JavaScript strings. Search suggestions on the Firefox Start about:home and new tab about:newtab pages. Improved reliability of the session restoration.

Azerbaijani [az] locale added. Proprietary window. DOMMatrix interface implemented. Cubic-bezier curves editor. 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.

Disabled SSLv3. Firefox signed by Apple OS X version 2 signature. JavaScript Template Strings Implemented. CSS3 Font variants and features control e. Highlight all nodes that match a given selector in the Style Editor and the Inspector’s Rules panel.

Improved User Interface of the Profiler. Fixed: CSS transitions start correctly when started at the same time as changes to display, position, overflow, and similar properties.

Desktop Official Firefox New search UI improved and enabled for more locales. Access the Firefox Marketplace from the Tools menu and optional toolbar button.

Use of tiled rendering on Mac OS X. Improved high quality image resizing performance. Improved handling of dynamic styling changes to increase responsiveness.

Resource Timing API implemented. CSS filters enabled by default. Changed JavaScript ‘let’ semantics to match the ES6 specification. 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. No longer accepting insecure RC4 ciphers whenever possible. Shut down hangs will now show the crash reporter before exiting the program. Add-on compatibility changed. Unicode-range CSS descriptor implemented. CSSOM-View scroll behavior implemented allowing smooth scrolling of content without custom libraries. Object-fit and object-position implemented.

Isolation CSS property implemented. CSS3 will-change property implemented. Changed JavaScript ‘const’ semantics to conform better to the ES6 specification. 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. 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. Facebook Container Help prevent Facebook from collecting your data outside their site. Pocket Save and discover the best stories from across the web.

Mozilla VPN Get protection beyond your browser, on all your devices. Product Promise Learn how each Firefox product protects and respects your data. Firefox Relay Sign up for new accounts without handing over your email address. Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. 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. Facebook Container Help prevent Facebook from collecting your data outside their site. Pocket Save and discover the best stories from across the web. Mozilla VPN Get protection beyond your browser, on all your devices.

Product Promise Learn how each Firefox product protects and respects your data. Firefox Relay Sign up for new accounts without handing over your email address. Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. Get involved Join the fight for a healthy internet.

 
 

Mozilla firefox latest version 2021.Release Notes

 

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. Users on bit Windows who download Firefox can get our bit version by default. That means you get a more secure version of Firefox, one that also crashes a whole lot less. How much less? You can still manually install bit Firefox, if you choose. If you need to run bit Firefox or manually install bit Firefox, you can simply download and re-run the Windows bit or bit Firefox installer from the Firefox platforms and languages download page.

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. Facebook Container Help prevent Facebook from collecting your data outside their site. Pocket Save and discover the best stories from across the web.

Mozilla VPN Get protection beyond your browser, on all your devices. Product Promise Learn how each Firefox product protects and respects your data. Firefox Relay Sign up for new accounts without handing over your email address. Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. Get involved Join the fight for a healthy internet.

Stories Stories about how our people and products are changing the world for the better. Careers Work for a mission-driven organization that makes people-first products. Mozilla Blog Learn about Mozilla and the issues that matter to us. Close Innovation menu Mozilla Hubs Gather in this interactive, online, multi-dimensional social space. Firefox Developer Edition Get the Firefox browser built just for developers. Common Voice Donate your voice so the future of the web can hear everyone.

How do you get bit Firefox? Take control of your browser.

 

Firefox version history – Wikipedia.Get the browser that protects what’s important

 
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