Version history of Mozilla Firefox

from Wikipedia, the free encyclopedia
Phoenix 0.1
Phoenix 0.1 from Mozilla on Windows XP. The November 2002 Wikipedia start page was loaded.
Firefox 2.0 on Windows XP
Firefox 3.6.28 on Windows 7
Firefox 4.0 on Windows 7
Firefox 29 on Windows 8.1
Firefox 57.0 on Windows 10

The web browser project Mozilla Firefox was initiated by Dave Hyatt and Blake Ross as an experimental branch of the Mozilla Application Suite , at that time still under the name Phoenix . An executable version of the program (Phoenix 0.1) was first published on September 23, 2002. A little more than two years later, on November 9, 2004, the first version recommended for productive use, Firefox 1.0, was published.

History of the Logos

  • First Phoenix logo (2002)

  • Firebird logo (2003)

  • First logo under the name Firefox

  • Logo from version 3.5.0

  • Third logo from version 23.0

  • Logo from version 57.0

  • New logo from version 70.0

Timetable

The diagram shows individual versions of the Mozilla Firefox web browser based on the publication dates on a time table and provides an overview.

The early history of Firefox can be found on Foxkeh.

Version table

This is the detailed version table of all previously released versions of Mozilla Firefox . It contains some historically significant alpha versions , beta versions and release candidates , security and stability updates, and the versions of the Extended Support Release (ESR) branch. The table also contains information about planned versions that have been announced by Mozilla. In between, some release dates are postponed to avoid conflicts with public holidays.

Browser name Gecko -
Version 		version Code name Publication a Remarks
Phoenix 1.2 Older version; no longer supported: 0.1 Pescadero September 23, 2002 First version: Customizable toolbar , quick search for bookmarks and history, simultaneous display of several documents in one application window ( tabbed browsing ).
Older version; no longer supported: 0.2 Santa Cruz October 1, 2002 Innovations: Autocomplete entries in web forms , sidebar for bookmarks, history or downloads, management of extensions ( Firefox extensions ).
Older version; no longer supported: 0.3 Lucia October 15, 2002 New features: Blocking of images and advertising windows ( pop-ups ) controllable via white lists .
1.3 Older version; no longer supported: 0.4 Oceano October 29, 2002 New features: improvements for ad blockers and customizable toolbars, support for visual themes ( themes ).
Older version; no longer supported: 0.5 Naples December 7, 2002 Innovations: Several start pages can be defined, user interface, speed and stability improvements.
Firebird 1.5 Older version; no longer supported: 0.6 Glendale May 17, 2003 Change of name to "Firebird"; New features: New standard theme called "Qute", improvements for bookmarks and data protection, smooth scrolling, automatic size adjustment of images, first version for macOS . Version 0.6.1 was released on July 28, 2003 to remove some program errors.
Older version; no longer supported: 0.7 Indio October 15, 2003 New features: automatic scrolling, password management, white list for cookies , revised settings window. On October 26, 2003, Mac OS X limited bugfix version 0.7.1 was released.
Firefox 1.6 Older version; no longer supported: 0.8 Royal Oak February 9, 2004 Change of name to "Firefox"; Innovations: Installation program for Windows, improvements to the download manager and bookmark management, operation without an Internet connection, new standard motif for Mac OS X called "Pinstripe".
1.7 Older version; no longer supported: 0.9 One Tree Hill June 15, 2004 Innovations: New standard motif called "Winstripe", data migration from other browsers via wizard , new extension and motif management, installation program for Linux. This was followed by updates 0.9.1 on June 28, 2004, 0.9.2 (only for Windows) on July 8, 2004 and 0.9.3 on August 4, 2004.
Older version; no longer supported: 0.10 Greenlane September 14, 2004 Public trial and preview version of Firefox 1.0. Version 0.10.1 followed on October 1, 2004.
Older version; no longer supported: 1.0rc1 Mission Bay October 28, 2004 First release candidate for Firefox 1.0. A second release candidate (code name: Whangamata ) followed on November 3, 2004.
Older version; no longer supported: 1.0 Phoenix November 9, 2004 New features: support for RSS - / Atom - Web feeds , improvements to open links from other applications, search bar, official localizations .
Older version; no longer supported: 1.0.8 April 13, 2006 Last security and stability update of version 1.0; updates 1.0.1 to 1.0.7 were released previously.
Firefox 1.5 1.8 Older version; no longer supported: 1.1a1 Strippenkaart May 31, 2005 First developer preview version of Firefox 1.5; a second alpha version followed on July 13, 2005.
Older version; no longer supported: 1.5b1 September 8, 2005 First public test and preview version of Firefox 1.5; a second beta version followed on October 6, 2005. During the beta phase, the development branch was referred to as Firefox 1.4 .
Older version; no longer supported: 1.5rc1 November 1, 2005 First release candidate for Firefox 1.5; A second approval candidate followed on November 10, 2005 and a third on November 17, 2005.
Older version; no longer supported: 1.5 Deer Park November 29, 2005 Innovations: Support for SVG and Canvas , improvements in JavaScript 1.5 and CSS  2/3, new functions "Delete private data" and "Report faulty website", faster navigation, moving tabs using drag and drop , improved pop-up blocker , Error pages instead of error dialogs, new update system, adaptations of the user interface to Windows XP .
Older version; no longer supported: 1.5.0.12 May 30, 2007 Last security and stability update of version 1.5; previously updates 1.5.0.1 through 1.5.0.11 were released.
Firefox 2 1.8.1 Older version; no longer supported: 2.0a1 March 23, 2006 First Firefox 2.0 Developer Preview; a second alpha version followed on May 12, 2006 and a third on May 26, 2006.
Older version; no longer supported: 2.0b1 July 12, 2006 First public test and preview version of Firefox 2.0; a second beta version followed on August 31, 2006.
Older version; no longer supported: 2.0rc1 September 26, 2006 First release candidate for Firefox 2.0; A second approval candidate followed on October 6, 2006 and a third on October 16, 2006.
Older version; no longer supported: 2.0 Bon echo October 24, 2006 New features: Integrated phishing protection, integrated spell check for web forms , automatic restoration of the last session after a browser crash ( session restore ), automatic search suggestions, revised update function and feed reader integration.
Older version; no longer supported: 2.0.0.20 December 18, 2008 Last security and stability update of version 2.0; previously updates 2.0.0.1 through 2.0.0.19 were released.
Firefox 3 1.9 Older version; no longer supported: 3.0a1 December 8, 2006 First Firefox 3.0 Developer Preview; Seven other alpha versions followed, the last on September 20, 2007.
Older version; no longer supported: 3.0b1 November 21, 2007 First public test and preview version of Firefox 3.0; four more beta versions followed, the last on April 2, 2008.
Older version; no longer supported: 3.0rc1 May 17, 2008 First release candidate for Firefox 3.0; A second approval candidate followed on June 5, 2008 and a third on June 11, 2008.
Older version; no longer supported: 3.0 Gran Paradiso June 17, 2008 Innovations: New platform-specific standard themes ( themes ) for the user interface, improved address line, new password manager based on JavaScript , new JavaScript library for developing extensions, animated PNG , warning for redirects, Acid2 test passed, switch to Cairo , zoom Function for text and graphic content, SOAP support discarded, revised bookmark management (places bookmarks), protection against malware , automatic updates only available via secure connections or with a digital signature , revised download manager, accelerated JavaScript processing and support for Color profiles .
Older version; no longer supported: 3.0.19 March 30, 2010 Last security and stability update of version 3.0; previously updates 3.0.1 through 3.0.18 were released.
Firefox 3.5 1.9.1 Older version; no longer supported: 3.1a1 July 28, 2008 First developer preview version of Firefox 3.5; a second alpha version followed on September 5, 2008.
Older version; no longer supported: 3.1b1 October 14, 2008 First public test and preview version of Firefox 3.5; four more beta versions followed, the last one, called "Firefox 3.5 Preview" (3.5b99), on June 8, 2009. Up to and including the third beta version, the development branch was called Firefox 3.1 , then Firefox 3.5 .
Older version; no longer supported: 3.5rc1 June 16, 2009 First release candidate for Firefox 3.5; A second approval candidate followed on June 19, 2009 and a third on June 24, 2009.
Older version; no longer supported: 3.5 Shiretoko June 30, 2009 What's New: Improved support for web standards ( CSS 2.1 and 3, downloadable fonts and SVG animations ), support for HTML5 elements <canvas>, <audio>and <video>in conjunction with native support of codecs Vorbis and Theora in Ogg - container format , implementation of methods defined in HTML5 for offline -Datenspeicherung, integration of Location-Aware Browsing , improved control of privacy (including the private browsing mode ), speculative parsing web content and new JavaScript - engine TraceMonkey (in addition to supporting query selectors, native JSON , and web worker threads were stability and JavaScript engine speed improved).
Older version; no longer supported: 3.5.19 April 28, 2011 Last security and stability update of version 3.5; previously updates 3.5.1 through 3.5.18 were released.
Firefox 3.6 1.9.2 Older version; no longer supported: 3.6a1 August 7, 2009 Firefox 3.6 Developer Preview.
Older version; no longer supported: 3.6b1 October 30, 2009 First public test and preview version of Firefox 3.6; four more beta versions followed, the last on December 17, 2009.
Older version; no longer supported: 3.6rc1 January 8, 2010 First release candidate for Firefox 3.6; a second approval candidate followed on January 17, 2010.
Older version; no longer supported: 3.6 Namoroka January 21, 2010 Innovations: Support of the HTML5 file API , direct manipulation of program files by plug-ins is prevented, protection against program crashes due to incompatible software, support for asynchronously executed JavaScript scripts, integration of the Personas extension for quickly changing browser styles, support for motion sensors , Check that plug-ins are up-to-date, full-screen mode and poster support for the HTML5 element <video>, support for the Web Open Font format , improved speed of the browser startup process and the JavaScript engine, improved response times to user inputs, improved support for web standards ( CSS , DOM and HTML5).
Older version; no longer supported: 3.6.28 March 13, 2012 Last version of the version branch 3.6; Security and stability update. Previously, updates 3.6.2 through 3.6.27 were released.
Firefox 4 1.9.3 Older version; no longer supported: 3.7a1 February 10, 2010 First Firefox 4.0 Developer Preview; four more alpha versions followed, the last on June 14, 2010. The Firefox 3.7 development branch was originally planned as a smaller intermediate step to version 4.0. During the development process, however, it was decided to publish some of the innovations as an update for Firefox 3.6 and to further develop the Firefox 3.7 branch under version number 4.0.
2.0 Older version; no longer supported: 4.0b1 July 6, 2010 First public test and preview version of Firefox 4.0; eleven more beta versions followed, the last on February 25, 2011.
Older version; no longer supported: 4.0rc1 March 9, 2011 First release candidate for Firefox 4.0; a second approval candidate followed on March 18, 2011.
Older version; no longer supported: 4.0 Tumucumaque March 22, 2011 Innovations: Extensively revised user interface, integration of the Sync (formerly called Weave Sync ) and Panorama (formerly TabCandy ) extensions , web developer tool "Web Console" for detecting errors in websites, new JavaScript engine JägerMonkey , hardware-accelerated display of web content under Windows ( using Direct2D / Direct3D ) and Mac OS X (using OpenGL ), new HTML5 - parser , support the graphics library WebGL and the video format WebM , support for multi-touch Gestures under Windows 7 , improve data protection ( Do-Not-track -http Header), general improvements in speed and stability, official 64-bit version for Mac OS X and Linux, Apple computers with PowerPC architecture are no longer supported.
Older version; no longer supported: 4.0.1 Macaw April 28, 2011 Last security and stability update of version 4.0.
Firefox 5 5.0 Older version; no longer supported: 5.0a2 April 13, 2011 Firefox 5.0 Developer Preview.
Older version; no longer supported: 5.0b2 May 20, 2011 First public test and preview version of Firefox 5.0; four more beta versions followed, the last (5.0b7) on June 15, 2011. A preliminary version with the version number 5.0b1 was released on May 4, 2011; However, it was not an official beta version, but a renamed alpha version that was used to test the function for changing the development channel. A beta version with version number 5.0b4 has been prepared but not released.
Older version; no longer supported: 5.0 June 21, 2011 Innovations: Improved support of web standards (including CSS animations), improvements to the user interface, spelling correction, canvas element, memory consumption, speed and stability, improved integration into the Linux desktop.
Older version; no longer supported: 5.0.1 July 11, 2011 Stability update for Mac OS X; does not contain changes for Windows or Linux.
Firefox 6 6.0 Older version; no longer supported: 6.0 August 16, 2011 Innovations: Support of new CSS properties, improved HTML5 support, Scratchpad development environment for testing JavaScript code in real time, improvements to the web console, highlighting of the domain in the address bar, new colored highlighting of secured connections , Rights management for websites (saving cookies and passwords, opening pop-up windows, etc.), activating the WebSocket protocol (the protocol was already implemented in Firefox 4, but was deactivated by default due to security concerns; Firefox 7 contains a revised implementation of the protocol ), improved scrolling on Windows, improved hardware acceleration on Linux.
Older version; no longer supported: 6.0.2 September 6, 2011 Unscheduled security update; Previously, Security Update 6.0.1 was released on August 30, 2011.
Firefox 7 7.0 Older version; no longer supported: 7.0 September 27, 2011 Innovations: Support of new CSS properties, better HTML5 support, use of the new graphics engine "Azure" for faster display of the contents of the canvas element, the HTTP protocol is no longer displayed in the URL input field, faster synchronization ("Instant Sync") ), Improved memory management to increase the speed with long browser sessions.
Older version; no longer supported: 7.0.1 September 29, 2011 Unscheduled stability update.
Firefox 8 8.0 Older version; no longer supported: 8.0 November 8, 2011 Innovations: Users have to confirm the installation of add-ons by third-party applications and the retention of add-ons (which may no longer be required) when updating Firefox. By default, the Twitter search is integrated (not in the German Firefox version), tabs become If desired, loaded only after selection when starting the browser, better support for HTML5 .
Older version; no longer supported: 8.0.1 November 21, 2011 Stability update for Mac OS X and Windows.
Firefox 9 9.0 Older version; no longer supported: 9.0 December 20, 2011 Innovations: Accelerated JavaScript, improved finding of required plugins that are not installed, the "Do-Not-Track" request to websites can now also be read out via JavaScript, support for different widths for fonts with CSS, stability and security improvements.
Older version; no longer supported: 9.0.1 December 22, 2011 Stability update for Mac OS X.
Firefox 10 10.0 Older version; no longer supported: 10.0 January 31, 2012 Improvement of the compatibility of add-ons ("Silent Update"), smaller updates should be fixed via a post-installed add-on and thus do not require a complete update with a new version number, integration of a code editor directly in Firefox (" Orion code editor "), further improvements to the web console, the possibility of examining and editing CSS properties of an HTML element by web developers, improvements in the performance of the page layout, implementation of antialiasing for WebGL , implementation of the " full screen APIs " for displaying web applications in full screen mode , Implementation of 3D transformations using CSS3 , improvements in the setup of the synchronization service.
Older version; no longer supported: 10.0.2 February 16, 2012 Security update; previously, security update 10.0.1 was released on February 10, 2012.
Firefox ESR 10 Older version; no longer supported: 10.0 January 31, 2012 For corporate, academic and government agencies, no new features, only includes security updates.
Older version; no longer supported: 10.0.12 January 8, 2013 Security and stability update. Last "ESR" version for Windows 2000 and XP <SP2; updates 10.0.1 through 10.0.11 were released previously.
Firefox 11 11.0 Older version; no longer supported: 11.0 March 13, 2012 Possibility of transferring settings and user data from Google Chrome , implementation of the three-dimensional website analysis tool "Tilt", improvements in synchronization between mobile and stationary devices.
Firefox 12 12.0 Older version; no longer supported: 12.0 April 24, 2012 Firefox updates are made more inconspicuous by the elimination of the Windows security dialog ("Silent Update"), revision of the design of the HTML5 video control elements, support for further CSS properties, debug messages via JavaScript ( console.log ) are now also in the web Console displayed if it was not open at the time of the log. Last version with support for Windows 2000 .
Firefox 13 13.0 Older version; no longer supported: 13.0 5th June 2012 Damaged user profiles can be repaired, thumbnails of frequently used or manually defined pages when opening a new tab ("Speed ​​Dial" / "New Tab Page"), improved autocomplete in the address bar, new start page (so-called "Home Tab" with search and direct Access to bookmarks history, settings, add-ons manager and downloads), pages from the previous session are only loaded when the browser is started when the corresponding tab is clicked for performance reasons, standard activation of SPDY , slight redesign of the user interface, "smooth scrolling" is now enabled by default.
Older version; no longer supported: 13.0.1 June 15, 2012 Security update.
Firefox 14 14.0 Older version; no longer supported: 14.0.1 17th July 2012 Integration of web applications , faster start-up time under Windows, integration of the download manager as a toolbar in the Firefox interface, users have to confirm the installation of plugins in order to avoid unwanted third-party installations, improved performance, update process in the background ("Silent Update") under Linux and OS X (under Windows this is handled by the service introduced in version 12).
Firefox 15 15.0 Older version; no longer supported: 15.0 August 28, 2012 Innovations: Faster start-up time under Windows, support of SPDY v3, update process in the background ("Silent Update") now also under Linux and OS X, JavaScript debugger for web developers, lower memory usage of add-ons, native support of the Opus audio codec, improved WebGL -Support.
Older version; no longer supported: 15.0.1 September 6, 2012 Unscheduled security update.
Firefox 16 16.0 Older version; no longer supported: 16.0 October 9, 2012 Activation of the display of PDF documents without plugins, the browser settings (like the add-on manager) are no longer displayed as a separate window, Acholi language support, incremental garbage collection , integration of web applications , download window is in the toolbar integrated, faster browser start with activated session recovery, support for OS X 10.7, improvement of the (optional) activation of plugins, command line for developers, developer toolbar, last version for Mac OS X Leopard .
Older version; no longer supported: 16.0.2 October 26, 2012 Unscheduled security update; Previously, Security Update 16.0.1 was released on October 11, 2012.
Firefox 17 17.0 Older version; no longer supported: 17.0 November 20, 2012 New features: support for Windows 8 and for the message center of OS X Mountain Lion , "click-to-play" plug-in blocker, larger icons in the awesome bar, integration of an HSTS host list, sandbox technology (protection against iframes ), social API (Facebook integration), performance improvements, security updates.
Older version; no longer supported: 17.0.1 November 30, 2012 Bug fixes.
Firefox ESR 17 Older version; no longer supported: 17.0 November 20, 2012 New ESR version based on version 17.0.
Older version; no longer supported: 17.0.11 15th November 2013 Update to NSS 3.14.5 RTM; previously updates 17.0.1 through 17.0.10 were released.
Firefox 18 18.0 Older version; no longer supported: 18.0 January 8, 2013 Innovations: Faster JavaScript thanks to the new JIT compiler , WebRTC support, support for retina displays .
Older version; no longer supported: 18.0.1 January 18, 2013 Stability update.
Older version; no longer supported: 18.0.2 5th February 2013 Stability update.
Firefox 19 19.0 Older version; no longer supported: 19.0 19th February 2013 Innovations: integrated PDF viewer, faster browser start.
Older version; no longer supported: 19.0.1 February 27, 2013 Unscheduled stability update for Windows 8.
Older version; no longer supported: 19.0.2 March 8, 2013 Unscheduled security update.
Firefox 20 20.0 Older version; no longer supported: 20.0 2nd April 2013 Innovations: Private mode can be activated for each window; Integration of the download manager into the main Firefox window; new dialog that informs about unresponsive plugins and offers the possibility to exit the corresponding plugin (only under Windows); Reset the search engine in the awesomebar, if changed by a third party application or about: config; new developer tool for examining running JavaScript code; improved HTML5 compatibility; Bug fixes.
Older version; no longer supported: 20.0.1 April 11, 2013 Unscheduled security update.
Firefox 21 21.0 Older version; no longer supported: 21.0 May 14, 2013 Innovations: Support for multiple providers through the social API, improved three-step user interface for Do Not Track , suggestions for improving the start time of Firefox, introduction of the Firefox Health Report.
Firefox 22 22.0 Older version; no longer supported: 22.0 June 25, 2013 Innovations: WebRTC activated by default, new HTML5 elements, improvements under Windows and Mac OS X, faster execution of JavaScript, expansion of the social API.
Firefox 23 23.0 Older version; no longer supported: 23.0 August 6, 2013 Innovations: "Share button" based on the social API, mixed content blocker is activated by default, JavaScript can no longer be switched off (except via add-on / about: config), customized logo, activation of DXV2 for hardware-accelerated H.264 Video decoding (from Windows Vista and higher), support for the HTML5 form tag <input type="range">, in the developer tools (Shift + I) there is now a new area "Network Analysis", the change in the search engine provider is now taking effect the entire browser.
Older version; no longer supported: 23.0.1 August 16, 2013 Stability updates.
Firefox 24 24.0 Older version; no longer supported: 24.0 17th September 2013 Innovations: All tabs to the right of the mouse click can now be closed together; Chat windows can now be displayed separately; Browser console improvement; Improvement in rendering SVG files.
Firefox ESR 24 Older version; no longer supported: 24.0 17th September 2013 New ESR version based on version 24.0.
Older version; no longer supported: 24.1.0 October 29, 2013 Security updates.
Older version; no longer supported: 24.1.1 15th November 2013 Security updates.
Older version; no longer supported: 24.2.0 December 10, 2013 Security updates.
Older version; no longer supported: 24.3.0 4th February 2014 Security updates.
Older version; no longer supported: 24.4.0 March 18, 2014 Security updates.
Older version; no longer supported: 24.5.0 April 29, 2014 Security updates.
Older version; no longer supported: 24.6.0 June 10, 2014 Security updates.
Older version; no longer supported: 24.7.0 July 22, 2014 Security updates.
Older version; no longer supported: 24.8.0 2nd September 2014 Security updates.
Older version; no longer supported: 24.8.1 September 24, 2014 Unscheduled security updates to the ESR version based on version 24.0, last 24 version.
Firefox 25 25.0 Older version; no longer supported: 25.0 October 29, 2013 Innovations: Web Audio API , the search bar is no longer shared between the tabs, guest sessions for Android smartphones, Firefox suggests the import of browser data from other browsers after a longer period of non-use, various improvements to the browser engine, security updates.
Older version; no longer supported: 25.0.1 15th November 2013 Bug fixes, security updates.
Firefox 26 26.0 Older version; no longer supported: 26.0 December 10, 2013 Support of Windows 8 Modern UI , all plug-ins except the Adobe Flash plug-in are only switched on when you click on a placeholder ( click-to-play ), improvements to the social API, the update process and codec support (H.264 under Linux, if the corresponding GStreamer plug-in is installed, and MP3 under Windows XP), various (performance) improvements of the browser engine.
Firefox 27 27.0 Older version; no longer supported: 27.0 4th February 2014 Innovations: Support of multiple services via social API; Changes: TLS 1.1 and 1.2 are activated by default, support for the SPDY -v3.1 protocol added; various developer options added; Security updates.
Older version; no longer supported: 27.0.1 February 13, 2014 Bug fixes, stability updates.
Firefox 28 28.0 Older version; no longer supported: 28.0 March 18, 2014 New features: volume control for HTML5 audio / video, support of the message center under OS X, support of WebM and VP9 video decoders; Change: SPDY v2 has been removed by standard implementation of SPDY v3; various developer options added; Security updates.
Firefox 29 29.0 Older version; no longer supported: 29.0 April 29, 2014 Innovations: Introduction of the new "Australis user interface", support for CSS variables, new optional storage facility for passwords.
Older version; no longer supported: 29.0.1 May 9, 2014 Bug fixes.
Firefox 30 30.0 Older version; no longer supported: 30.0 June 10, 2014 Support of GStreamer 1.0.
Firefox 31 31.0 Older version; no longer supported: 31.0 July 22, 2014 Innovations: Search in "New Tab" field added, malware blockade in downloads, WebVTT and CSS3 variables embedded and activated.
Firefox ESR 31 Older version; no longer supported: 31.0 July 22, 2014 New ESR version based on version 31. (supports TLS 1.2).
Older version; no longer supported: 31.1.0 2nd September 2014 Security updates.
Older version; no longer supported: 31.1.1 September 24, 2014 Unscheduled security updates for the ESR version based on version 31.0.
Older version; no longer supported: 31.2.0 October 14, 2014 Security updates.
Older version; no longer supported: 31.3.0 1st December 2014 Security updates SSL3 disabled by default.
Older version; no longer supported: 31.4.0 January 13, 2015 Security updates.
Older version; no longer supported: 31.5.0 February 24, 2015 Security updates.
Older version; no longer supported: 31.5.2 March 20, 2015 Unscheduled security updates.
Older version; no longer supported: 31.5.3 March 21, 2015 Unscheduled security updates.
Older version; no longer supported: 31.6.0 March 31, 2015 Security updates.
Older version; no longer supported: 31.7.0 May 12, 2015 Security updates.
Older version; no longer supported: 31.8.0 2nd July 2015 Latest security updates for Firefox 31, fix against Logjam .
Firefox 32 32.0 Older version; no longer supported: 32.0 2nd September 2014 Innovations: new HTTP caching , integration of a generational garbage collector, public key pinning is supported, a new context menu has been implemented, new password manager, Lower Sorbian language support.
Older version; no longer supported: 32.0.1 September 12, 2014 Unscheduled bug fixes and stability updates.
Older version; no longer supported: 32.0.2 18th September 2014 Unscheduled stability update.
Older version; no longer supported: 32.0.3 September 24, 2014 Unscheduled security update.
Firefox 33 33.0 Older version; no longer supported: 33.0 October 14, 2014 Installation of OpenH.264 plug-in for future audio and video chat via WebRTC in the browser, advertisements via "Enhanced Tiles", activated Off Main Thread Compositing (OMTC), improved session recovery, Azerbaijani language support.
Older version; no longer supported: 33.0.1 October 24, 2014 Unscheduled troubleshooting.
Older version; no longer supported: 33.0.2 October 28, 2014 Unscheduled troubleshooting.
Older version; no longer supported: 33.0.3 November 6, 2014 Unscheduled troubleshooting.
Older version; no longer supported: 33.1 November 10, 2014 Anniversary update; New features: "Forget" button, expanded tiles, introductory tour on privacy, integrated search engine DuckDuckGo .
Older version; no longer supported: 33.1.1 November 14, 2014 Unscheduled stability update.
Firefox 34 34.0 Older version; no longer supported: 34.0 1st December 2014 New features: Standard search engine for Belarus, Kazakhstan and Russia has been set to Yandex; improved search bar (en-US only); Firefox Hello (real-time communication client); easy change of themes / personas via the "customize" menu; Wikipedia search now uses HTTPS (en-US only); Implementation of HTTP / 2 (draft14) and ALPN ; SSL3 disabled by default.
Older version; no longer supported: 34.0.5 1st December 2014 Modified North American version of Firefox 34.0 with Yahoo! as the standard search engine, but the current version number worldwide.
Firefox 35 35.0 Older version; no longer supported: 35.0 January 13, 2015 Innovations: Firefox Hello expanded to include a chat room function and other functions.
Older version; no longer supported: 35.0.1 January 26, 2015 Unscheduled bug fix and stability update.
Firefox 36 36.0 Older version; no longer supported: 36.0 February 24, 2015 Innovations: Content pinned on the “New Tab” page is synchronized via Firefox Sync, support for HTTP / 2, Uzbek language support, RC4 only as fallback, removal of 1024-bit root CAs from the Mozilla Trust Store; New search bar now also in the German version, whereby all installed search engines are displayed for selection when entering a term.
Older version; no longer supported: 36.0.1 5th March 2015 Unscheduled bug fix and stability update.
Older version; no longer supported: 36.0.3 March 20, 2015 Unscheduled security updates.
Older version; no longer supported: 36.0.4 March 21, 2015 Unscheduled security updates.
Firefox 37 37.0 Older version; no longer supported: 37.0 March 31, 2015 Innovations: User ratings via Heartbeat, the standard search engine for Turkey has been set to Yandex, Bing search has been switched to the encrypted HTTPS protocol, certificates can be declared invalid centrally via OneCRL, support of HTTP / 2 AltSvc to build encrypted http Connections, support for DSA (not ECDSA) removed, unsafe downgrade of TLS mode disabled.
Older version; no longer supported: 37.0.1 3rd April 2015 Unscheduled bug fix and stability update.
Older version; no longer supported: 37.0.2 April 20, 2015 Unscheduled bug fix and stability update.
Firefox 38 38.0 Older version; no longer supported: 38.0 May 12, 2015 Innovations: Settings on tabs outsourced, Ruby annotations enabled, DRM support under Windows expanded.
Older version; no longer supported: 38.0.1 May 14, 2015 Unscheduled bug fix and stability update. New: Digital Rights Management for HTML5 videos.
Older version; no longer supported: 38.0.5 2nd June 2015 Unscheduled bug fix and stability update.
Firefox ESR 38 Older version; no longer supported: 38.0 May 12, 2015 New ESR version based on version 38.0 (Encrypted Media Extensions and Firefox Hello disabled by default).
Older version; no longer supported: 38.0.1 May 14, 2015 Unscheduled security updates to the ESR version.
Older version; no longer supported: 38.1.0 2nd July 2015 Security updates for the ESR version based on version 38.0.
Older version; no longer supported: 38.1.1 August 6, 2015 Unscheduled security updates to the ESR version.
Older version; no longer supported: 38.2.0 11th August 2015 Scheduled bug fix and security updates to the ESR version.
Older version; no longer supported: 38.2.1 August 27, 2015 Unscheduled security updates to the ESR version.
Older version; no longer supported: 38.3.0 22nd September 2015 Scheduled security updates to the ESR version.
Older version; no longer supported: 38.4.0 3rd November 2015 Scheduled security updates to the ESR version.
Older version; no longer supported: 38.5.0 December 15, 2015 Scheduled security updates to the ESR version.
Older version; no longer supported: 38.5.1 December 21, 2015 Unscheduled function update to the ESR version.
Older version; no longer supported: 38.5.2 December 22, 2015 Unscheduled function update to the ESR version.
Older version; no longer supported: 38.6.0 January 26, 2016 Scheduled security updates to the ESR version.
Older version; no longer supported: 38.6.1 February 11, 2016 Unscheduled security update to the ESR version.
Older version; no longer supported: 38.7.0 March 8, 2016 Scheduled security updates to the ESR version.
Older version; no longer supported: 38.7.1 March 16, 2016 Unscheduled bug fix update to ESR version.
Older version; no longer supported: 38.8.0 April 26, 2016 Last security updates for the ESR version based on version 38.0
Firefox 39 39.0 Older version; no longer supported: 39.0 2nd July 2015 Innovations: SSLv3 completely removed, fix against Logjam , extension of the tracking protection to private mode.
Older version; no longer supported: 39.0.3 August 6, 2015 Unscheduled security updates.
Firefox 40 40.0 Older version; no longer supported: 40.0 11th August 2015 Innovations: Suggested Tiles (personalized tiles with advertising), official support for Windows 10, warning of unsigned add-ons, protection against downloading unwanted software, improvement of the NPAPI plug-in performance, improved OMTC performance under Linux, new design for Add -on Manager, Performance Tools in the Developer Tools.
Older version; no longer supported: 40.0.2 August 13, 2015 Unscheduled bug fix and stability update.
Older version; no longer supported: 40.0.3 August 27, 2015 Unscheduled bug fix and stability update.
Firefox 41 41.0 Older version; no longer supported: 41.0 22nd September 2015 Innovations u. a .: Support for TSF ( Text Services Framework ), possibility to set a profile picture for his Firefox account , IM function for Firefox Hello, SVG pictures can be used as favicons , improved picture decoding with up to twice the speed on some devices especially when scrolling .

Firefox Desktop for Windows is made available as a 64-bit version via the Beta Release Channel.

Older version; no longer supported: 41.0.1 September 30, 2015 Unscheduled bug fixes
Older version; no longer supported: 41.0.2 15th October 2015 Unscheduled security update
Firefox 42 42.0 Older version; no longer supported: 42.0 3rd November 2015 Innovations: Slightly improved privacy protection of the private browsing function; Settings menu contains page-based security and privacy settings; Login manager improvements; Improvements to WebRTC ; One-click muting of tabs ( Mute Tab ).
Firefox 43 43.0 Older version; no longer supported: 43.0 December 15, 2015 New features: Stricter block list for surfing in private mode; Firefox 64-bit available for Windows; improved API support for playback of M4V videos; Possibility of setting search suggestions in the "Awesome Bar"; Display of an on-screen keyboard on touch-enabled devices with Windows 8 or 10 as soon as an input field is tapped with the finger.
Older version; no longer supported: 43.0.1 December 18, 2015 Unscheduled feature update
Older version; no longer supported: 43.0.2 December 22, 2015 Unscheduled stability and security updates
Older version; no longer supported: 43.0.3 December 28, 2015 Unscheduled troubleshooting
Older version; no longer supported: 43.0.4 January 6, 2016 Unscheduled functionality and stability updates
Firefox 44 44.0 Older version; no longer supported: 44.0 January 26, 2016 Innovations: Deactivation of RC4; Removed support for 1024-bit Equifax Root CA; Forced to sign add-ons and extensions (can no longer be deactivated) moved; HTTP compression with the Brotli algorithm ; Support for H.264 when a local codec is available; Push notifications
Older version; no longer supported: 44.0.1 February 8, 2016 Unscheduled bug fixes
Older version; no longer supported: 44.0.2 February 11, 2016 Unscheduled stability update
Firefox 45 45.0 Older version; no longer supported: 45.0 March 8, 2016 Innovations: Improvements in tabbed browsing , .onion addresses can be blocked, Guaraní language support
Older version; no longer supported: 45.0.1 March 16, 2016 Unscheduled bug fix and stability updates
Older version; no longer supported: 45.0.2 April 11, 2016 Unscheduled bug fix and stability updates
Firefox ESR 45 Older version; no longer supported: 45.0 March 8, 2016 Innovations: New ESR version based on version 45.
Older version; no longer supported: 45.0.1 March 16, 2016 Unscheduled bug fix and stability updates
Older version; no longer supported: 45.0.2 April 11, 2016 Unscheduled bug fix and stability updates
Older version; no longer supported: 45.1.0 April 26, 2016 Various stability and security updates.
Older version; no longer supported: 45.1.1 May 3, 2016 Unscheduled bug fixes.
Older version; no longer supported: 45.2.0 June 7, 2016 Scheduled bug fix and stability updates.
Older version; no longer supported: 45.3.0 2nd August 2016 Scheduled stability and security updates.
Older version; no longer supported: 45.4.0 20th September 2016 Scheduled security updates.
Older version; no longer supported: 45.5.0 15th November 2016 Scheduled security updates.
Older version; no longer supported: 45.5.1 November 30, 2016 Unscheduled security update.
Older version; no longer supported: 45.6.0 December 13, 2016 Scheduled security updates.
Older version; no longer supported: 45.7.0 January 24, 2017 Scheduled security updates.
Older version; no longer supported: 45.8.0 March 7, 2017 Scheduled security updates.
Older version; no longer supported: 45.9.0 19th April 2017 Last security updates for the ESR version based on version 45.0
Firefox 46 46.0 Older version; no longer supported: 46.0 April 26, 2016 Innovations: GTK3 integration (Linux), W ^ X protection for JIT code
Older version; no longer supported: 46.0.1 May 3, 2016 Unscheduled bug fixes.
Firefox 47 47.0 Older version; no longer supported: 47.0 June 7, 2016 Innovations: Support of Google's Widevine CDM ; VP9 video codec enabled for users with powerful hardware; embedded YouTube videos are now played via HTML5 if Flash is not available; Latgalian -Sprachunterstützung; Support of the ChaCha20 -Poly1305 encryption algorithm
Older version; no longer supported: 47.0.1 June 28, 2016 Unscheduled stability update.
Older version; no longer supported: 47.0.2 November 1, 2016 prevents update to version 48+ for Websense users, prevents update to version 49+ for CPUs without SSE2, end of support for Android 2.3
Firefox 48 48.0 Older version; no longer supported: 48.0 2nd August 2016 Download protection multi-process architecture Electrolysis (e10s), new extension type WebExtensions , end of support for Mac OS X 10.6 to 10.8, compulsory signing of add-ons (can no longer be deactivated), Skia support under Linux, improvements to WebRTC .
Older version; no longer supported: 48.0.1 18th August 2016 Unscheduled bug fix and stability update.
Older version; no longer supported: 48.0.2 August 24, 2016 Unscheduled stability update.
Firefox 49 49.0 Older version; no longer supported: 49.0 20th September 2016 Firefox Hello has been removed, update of the login manager, performance improvements under Windows and OS X, support for TLS 1.3. The CPU instruction set extension SSE2 is now required. Security patches and bug fixes.
Older version; no longer supported: 49.0.1 23rd September 2016 Unscheduled stability update, only for Windows.
Older version; no longer supported: 49.0.2 20th October 2016 Unscheduled bug fixes, stability and security updates.
Firefox 50 50.0 Older version; no longer supported: 50.0 15th November 2016 New keyboard shortcuts; smarter search; Significant improvements in start time through optimizations to the add-on SDK; contains the emoji set EmojiOne for systems that do not have native fonts for them (Windows 8 and older, Linux)
Older version; no longer supported: 50.0.1 November 28, 2016 Unscheduled security update.
Older version; no longer supported: 50.0.2 November 30, 2016 Unscheduled security update.
Older version; no longer supported: 50.1.0 December 13, 2016 Scheduled security updates.
Firefox 51 51.0 Older version; no longer supported: 51.0 January 24, 2017 New zoom button in the URL bar; Better video performance for users without GPU acceleration; Firefox is now also able to save passwords in forms that do not use a "Submit" event; FLAC support added; WebGL 2 support added; Firefox will in future display a warning on pages without a secure connection that require the entry of login data; Georgian - and Kabyle -Sprachunterstützung added; Belarusian language support removed; various security updates
Older version; no longer supported: 51.0.1 January 26, 2017 Unscheduled bug fixes.
Firefox 52 52.0 Older version; no longer supported: 52.0 March 7, 2017 What's new: WebAssembly support; the browser recognizes portal pages of WLAN hotspots and opens them in a new tab as soon as the user has logged into the hotspot; Strict-Secure-Cookies specification, which prohibits unsecure HTTP sites from setting cookies with the "secure" flag; the browser warns of unsafe log-ins; extended synchronization: users can now transfer the open tabs from one device to another; various security updates; Except for Flash, NPAPI plugins are no longer supported; Support for Windows XP and Windows Vista has been discontinued.
Older version; no longer supported: 52.0.1 17th March 2017 Unscheduled security updates.
Older version; no longer supported: 52.0.2 March 28, 2017 Unscheduled stability update.
Firefox ESR 52 Older version; no longer supported: 52.0 March 7, 2017 New ESR version based on version 52.
Older version; no longer supported: 52.0.1 17th March 2017 Unscheduled security updates.
Older version; no longer supported: 52.0.2 March 28, 2017 Unscheduled stability update.
Older version; no longer supported: 52.1.0 19th April 2017 Scheduled security and stability updates.
Older version; no longer supported: 52.1.1 5th May 2017 Unscheduled security updates.
Older version; no longer supported: 52.1.2 19th May 2017 Unscheduled security updates.
Older version; no longer supported: 52.2.0 June 13, 2017 Scheduled security and stability updates.
Older version; no longer supported: 52.2.1 June 29, 2017 Unscheduled troubleshooting.
Older version; no longer supported: 52.3.0 August 8, 2017 Scheduled security and stability updates.
Older version; no longer supported: 52.4.0 28th September 2017 Scheduled security and stability updates.
Older version; no longer supported: 52.4.1 October 9, 2017 Unscheduled stability updates.
Older version; no longer supported: 52.5.0 November 14, 2017 Scheduled security and stability updates.
Older version; no longer supported: 52.5.2 7th December 2017 Unscheduled security updates.
Older version; no longer supported: 52.5.3 December 28, 2017 Unscheduled stability update.
Older version; no longer supported: 52.6.0 23rd January 2018 Scheduled security and stability updates.
Older version; no longer supported: 52.7.0 March 13, 2018 Scheduled security and stability updates.
Older version; no longer supported: 52.7.1 March 14, 2018 Unscheduled troubleshooting.
Older version; no longer supported: 52.7.2 March 16, 2018 Unscheduled security updates.
Older version; no longer supported: 52.7.3 March 26, 2018 Unscheduled security updates.
Older version; no longer supported: 52.7.4 April 30, 2018 Unscheduled compatibility update for the "Windows 10 April 2018 Update".
Older version; no longer supported: 52.8.0 May 9, 2018 Scheduled security and stability updates; Safe Browsing performance improvements.
Older version; no longer supported: 52.8.1 June 6, 2018 Unscheduled security updates.
Older version; no longer supported: 52.9.0 June 26, 2018 Last scheduled security updates of the ESR version based on version 52.0
Firefox 53 53.0 Older version; no longer supported: 53.0 19th April 2017 Innovations: Graphics stability is increased through the use of Compositor Process Separation (Project Quantum); new compact themes; various security updates; Changed: Support for Vista or older, as well as 32-bit versions of Mac OS X, has been removed.
Older version; no longer supported: 53.0.1 April 27, 2017 Unscheduled bug and stability updates for Android .
Older version; no longer supported: 53.0.2 5th May 2017 Unscheduled bug and security updates.
Older version; no longer supported: 53.0.3 19th May 2017 Unscheduled bug and security updates.
Firefox 54 54.0 Older version; no longer supported: 54.0 June 13, 2017 The “Electrolysis” project (e10s) now distributes the tasks in the browser to a total of four processes; the download button and the associated status display have been simplified; 22 security holes have been fixed.
Older version; no longer supported: 54.0.1 June 29, 2017 Unscheduled bug fixes.
Firefox 55 55.0 Older version; no longer supported: 55.0 August 8, 2017 Innovations: Support for virtual reality (VR); significant performance improvements; Prioritization of HTTPS over HTTP; Geolocation API only in a secure context; Adobe Flash Player is no longer enabled by default; Local file access in a separate process for more security; numerous security gaps closed.
Older version; no longer supported: 55.0.1 August 10, 2017 Unscheduled bug fixes.
Older version; no longer supported: 55.0.2 16th August 2017 Unscheduled bug fixes.
Older version; no longer supported: 55.0.3 August 25, 2017 Unscheduled bug fixes.
Firefox 56 56.0 Older version; no longer supported: 56.0 28th September 2017 Firefox 56 has been supplemented with a tool for making screenshots and closes a long-standing data protection gap in dealing with the IndexedDB interface. This is the last version that supports addons based on XUL .
Older version; no longer supported: 56.0.1 October 9, 2017 Unscheduled update: After the update to the new version, the 32-bit version of Firefox under Windows (64-bit) is automatically switched to the 64-bit version of Firefox; Stability update.
Older version; no longer supported: 56.0.2 October 26, 2017 Unscheduled bug and stability updates.
Firefox Quantum 57 57.0 Older version; no longer supported: 57.0 November 14, 2017 Support for SDK and XUL based extensions has been removed. new user interface Photon, new logo, fundamentally redeveloped browser engine (thus higher performance with lower memory consumption)
Older version; no longer supported: 57.0.1 29th November 2017 Unscheduled bug, stability and security updates.
Older version; no longer supported: 57.0.2 7th December 2017 Unscheduled error and stability update.
Older version; no longer supported: 57.0.3 December 28, 2017 Unscheduled stability update.
Older version; no longer supported: 57.0.4 4th January 2018 Unscheduled security updates that fix the Meltdown and Specter bugs .
Firefox Quantum 58 58.0 Older version; no longer supported: 58.0 23rd January 2018 Increased rendering speed through "Off-Main-Thread Painting" (OMTP); new baseline compiler that speeds up page loading; Improvement of the screenshot tool; Nepali language support added; From this version on, user profiles are no longer backward compatible; various security updates
Older version; no longer supported: 58.0.1 29th January 2018 Unscheduled security update.
Older version; no longer supported: 58.0.2 February 7, 2018 Unscheduled bug fixes and stability updates.
Firefox Quantum 59 59.0 Older version; no longer supported: 59.0 March 13, 2018 Performance improvements; improved private browsing mode; additional features for Firefox screenshots; additional search engines
Older version; no longer supported: 59.0.1 March 16, 2018 Unscheduled security updates.
Older version; no longer supported: 59.0.2 March 26, 2018 Unscheduled bug fixes and security updates.
Older version; no longer supported: 59.0.3 April 30, 2018 Unscheduled compatibility update for the "Windows 10 April 2018 Update".
Firefox Quantum 60 60.0 Older version; no longer supported: 60.0 May 9, 2018 Innovations:
Older version; no longer supported: 60.0.1 May 16, 2018 Unscheduled bug fixes.
Older version; no longer supported: 60.0.2 June 6, 2018 Unscheduled bug fixes and security updates.
Firefox Quantum ESR 60 Older version; no longer supported: 60.0 May 9, 2018 New ESR version based on version 60.
Older version; no longer supported: 60.0.1 May 16, 2018 Unscheduled bug fixes.
Older version; no longer supported: 60.0.2 June 6, 2018 Unscheduled bug fixes and security updates.
Older version; no longer supported: 60.1.0 June 26, 2018 Scheduled security and stability updates.
Older version; no longer supported: 60.2.0 5th September 2018 Scheduled security and stability updates.
Older version; no longer supported: 60.2.1 September 21, 2018 Unscheduled security and stability updates.
Older version; no longer supported: 60.2.2 October 2, 2018 Unscheduled security and stability updates.
Older version; no longer supported: 60.3.0 23 October 2018 Scheduled security and stability updates.
Older version; no longer supported: 60.4.0 December 11, 2018 Scheduled security updates; Innovations: The ISO code directory for countries and currencies has been updated: Unidad Previsional (UYW) has been added as a new currency code.
Older version; no longer supported: 60.5.0 29 January 2019 Scheduled security updates.
Older version; no longer supported: 60.5.1 February 12, 2019 Unscheduled security updates.
Older version; no longer supported: 60.5.2 February 22, 2019 Unscheduled stability update.
Older version; no longer supported: 60.6.0 19th March 2019 Scheduled security updates.
Older version; no longer supported: 60.6.1 March 22, 2019 Unscheduled security updates.
Older version; no longer supported: 60.6.2 5th May 2019 Unscheduled error correction (expired certificate resulted in the deactivation of WebExtensions).
Older version; no longer supported: 60.6.3 May 8, 2019 Unscheduled error correction (expired certificate resulted in the deactivation of WebExtensions).
Older version; no longer supported: 60.7.0 May 21, 2019 Unscheduled security updates.
Older version; no longer supported: 60.7.1 18th June 2019 Unscheduled security update.
Older version; no longer supported: 60.7.2 20th June 2019 Unscheduled security update.
Older version; no longer supported: 60.8.0 July 9, 2019 Scheduled security updates.
Older version; no longer supported: 60.9.0 3rd September 2019 Last scheduled security updates of the ESR version based on version 60.0
Firefox Quantum 61 61.0 Older version; no longer supported: 61.0 June 26, 2018 Innovations:
Older version; no longer supported: 61.0.1 5th July 2018 Unscheduled bug fixes.
Older version; no longer supported: 61.0.2 August 8, 2018 Unscheduled bug fixes.
Firefox Quantum 62 62.0 Older version; no longer supported: 62.0 5th September 2018 Innovations:
Older version; no longer supported: 62.0.1 September 7, 2018 Unscheduled stability update for Android.
Older version; no longer supported: 62.0.2 September 21, 2018 Unscheduled bug fixes.
Older version; no longer supported: 62.0.3 October 2, 2018 Unscheduled stability, bug and security updates.
Firefox Quantum 63 63.0 Older version; no longer supported: 63.0 23 October 2018 Innovations:
Older version; no longer supported: 63.0.1 October 31, 2018 Unscheduled bug fixes.
Older version; no longer supported: 63.0.2 7th November 2018 Unscheduled bug fixes for Android.
Older version; no longer supported: 63.0.3 15th November 2018 Unscheduled bug fixes and stability updates.
Firefox Quantum 64 64.0 Older version; no longer supported: 64.0 December 11, 2018 Innovations:
Older version; no longer supported: 64.0.2 January 9, 2019 Maintenance update, which eliminates errors
Firefox Quantum 65 65.0 Older version; no longer supported: 65.0 29 January 2019 Innovations: Support of WebP and AV1 , improved tracking protection
Older version; no longer supported: 65.0.1 February 12, 2019 Unscheduled stability, bug and security updates.
Older version; no longer supported: 65.0.2 February 28, 2019 Unscheduled troubleshooting.
Firefox Quantum 66 66.0 Older version; no longer supported: 66.0 19th March 2019 Innovations:
Older version; no longer supported: 66.0.1 March 22, 2019 Unscheduled security updates.
Older version; no longer supported: 66.0.2 March 27, 2019 Unscheduled compatibility and stability updates.
Older version; no longer supported: 66.0.3 April 10, 2019 Unscheduled bug fixes.
Older version; no longer supported: 66.0.4 5th May 2019 Unscheduled error correction (expired certificate resulted in the deactivation of WebExtensions).
Older version; no longer supported: 66.0.5 May 7, 2019 Unscheduled troubleshooting.
Firefox Quantum 67 67.0 Older version; no longer supported: 67.0 May 21, 2019 Integration of the web renderer. Blocking of cryptominers and fingerprinting elements is now possible.
Older version; no longer supported: 67.0.1 4th June 2019 Unscheduled update: Improved tracking protection.
Older version; no longer supported: 67.0.2 June 11, 2019 Unscheduled bug fixes.
Older version; no longer supported: 67.0.3 18th June 2019 Unscheduled security update.
Older version; no longer supported: 67.0.4 20th June 2019 Unscheduled security update.
Firefox Quantum 68 68.0 Older version; no longer supported: 68.0 July 9, 2019 Innovations:
Older version; no longer supported: 68.0.1 18th July 2019 Unscheduled bug fixes.
Older version; no longer supported: 68.0.2 August 14, 2019 Unscheduled bug fixes and security updates.
Firefox Quantum ESR 68 Older version; no longer supported: 68.0 July 9, 2019 New ESR version based on version 68.
Older version; no longer supported: 68.0.1 18th July 2019 Unscheduled bug fixes.
Older version; no longer supported: 68.0.2 August 14, 2019 Unscheduled bug fixes and security updates.
Older version; no longer supported: 68.1.0 3rd September 2019 Scheduled security, stability and functionality updates.
Older version; no longer supported: 68.2.0 October 22, 2019 Scheduled security updates.
Older version; no longer supported: 68.2.1 November 13, 2019 Unscheduled updates for Android.
Older version; no longer supported: 68.3.0 3rd December 2019 Scheduled security, stability and performance updates.
Older version; no longer supported: 68.4.0 January 7, 2020 Scheduled security updates.
Older version; no longer supported: 68.4.1 January 8, 2020 Unscheduled security update.
Older version; no longer supported: 68.4.2 January 20, 2020 Unscheduled stability update.
Older version; no longer supported: 68.5.0 February 11, 2020 Scheduled stability and security updates.
Older version; no longer supported: 68.6.0 March 10, 2020 Scheduled stability and security updates.
Older version; no longer supported: 68.6.1 April 3, 2020 Unscheduled security updates.
Older version; no longer supported: 68.7.0 April 7, 2020 Scheduled stability and security updates.
Older version; no longer supported: 68.8.0 5th May 2020 Scheduled stability and security updates.
Older version; no longer supported: 68.9.0 2nd June 2020 Scheduled stability and security updates.
Older version; no longer supported: 68.10.0 June 30, 2020 Scheduled stability and security updates.
Older version; no longer supported: 68.11.0 July 28, 2020 Scheduled stability and security updates.
Older version; still supported: 68.12.0 August 25, 2020 Last scheduled security updates of the ESR version based on version 68.0.
Firefox Quantum 69 69.0 Older version; no longer supported: 69.0 3rd September 2019 Innovations:
Older version; no longer supported: 69.0.1 18th September 2019 Unscheduled bug fixes, as well as security and stability updates.
Older version; no longer supported: 69.0.2 3rd October 2019 Unscheduled stability updates.
Older version; no longer supported: 69.0.3 October 10, 2019 Unscheduled bug fixes.
Firefox browser 70 70.0 Older version; no longer supported: 70.0 October 22, 2019 Innovations:
Older version; no longer supported: 70.0.1 October 31, 2019 Unscheduled bug fixes.
Firefox Browser 71 71.0 Older version; no longer supported: 71.0 3rd December 2019 Innovations:
Firefox browser 72 72.0 Older version; no longer supported: 72.0 January 7, 2020 Innovations:
Older version; no longer supported: 72.0.1 January 8, 2020 Unscheduled security update.
Older version; no longer supported: 72.0.2 January 20, 2020 Unscheduled stability update.
Firefox browser 73 73.0 Older version; no longer supported: 73.0 February 11, 2020 Innovations:
Older version; no longer supported: 73.0.1 February 18, 2020 Unscheduled bug fixes.
Firefox browser 74 74.0 Older version; no longer supported: 74.0 March 10, 2020 Innovations:
Older version; no longer supported: 74.0.1 April 3, 2020 Unscheduled security updates.
Firefox browser 75 75.0 Older version; no longer supported: 75.0 April 7, 2020 Innovations: Smarter and faster searches with a revised address bar.
Firefox browser 76 76.0 Older version; no longer supported: 76.0 5th May 2020 Innovations: Improved protection for online account logins.
Older version; no longer supported: 76.0.1 May 8, 2020 Unscheduled bug fixes.
Firefox Browser 77 77.0 Older version; no longer supported: 77.0 2nd June 2020 Innovations:
Older version; no longer supported: 77.0.1 3rd June 2020 Unscheduled troubleshooting.
Firefox Browser 78 78.0 Older version; no longer supported: 78.0 June 30, 2020 New features: Last version for macOS 10.9 to 10.11
Older version; no longer supported: 78.0.1 July 1, 2020 Unscheduled troubleshooting.
Older version; no longer supported: 78.0.2 July 9, 2020 Unscheduled security updates and bug fixes.
Firefox Browser ESR 78 Older version; no longer supported: 78.0 June 30, 2020 New ESR version based on version 78.
Older version; no longer supported: 78.0.1 July 1, 2020 Unscheduled troubleshooting.
Older version; no longer supported: 78.0.2 July 9, 2020 Unscheduled security updates and bug fixes.
Older version; no longer supported: 78.1.0 July 28, 2020 Scheduled stability, functionality and security updates.
Older version; still supported: 78.2.0 August 25, 2020 Scheduled stability, functionality and security updates.
Firefox Browser 79 79.0 Older version; no longer supported: 79.0 July 28, 2020 Innovations:
Firefox browser 80 80.0 Current version: 80.0 August 25, 2020 Innovations:
Dates of the next planned publications
Firefox Browser ESR 78 78.0 Future version: 78.3 22nd September 2020 Planned changes: security updates.
Future version: 78.4 20th October 2020 Planned changes: security updates.
Firefox Browser 81 81.0 Future version: 81.0 22nd September 2020
Firefox Browser 82 82.0 Future version: 82.0 20th October 2020
Legend:
Older version; no longer supported
Older version; still supported
Current version
Current preliminary version
Future version
aPST / PDT dates , based on the Mozilla Foundation's headquarters in Mountain View , California .

Structure of the version numbers

The Mozilla Foundation defines the version numbers of Mozilla products according to a scheme in which the further development of the project is represented by the first two digits, the third is used for security and stability updates.

Major version number, minor version number, correction number

The version 1.5 and 2.0 branches deviate from this scheme, there is a further correction number has been introduced that changes to the add-on system would have affected ( offset number A ), security and stability updates were from the offset number B represented. If it had been necessary to intervene in the add-on system, which would have required the developers of many add-ons to publish a new version for reasons of compatibility, the correction number A would have been changed.

Major version number Minor version number Correction number A. Correction number B

Since this never happened, Mozilla decided to revert to the original scheme with the release of version 3.0.

Origin of the code names

Royal Oak , One Tree Hill and Greenlane are suburbs of Auckland , New Zealand . These code names were given by Ben Goodger , who grew up in New Zealand. The other code names originally given in the roadmap up to version 1.0 come from a road map from a trip to Phoenix , Arizona .

Deer Park is a small town in Suffolk County , New York . Ben Goodger becameaware of this namethrough a sign on the Long Island Rail Road. Bon Echo is a nature reserve in Ontario , Canada . The name should allude to the "good echo" that Firefox version 1 has experienced so far.

Gran Paradiso is a national park in north-western Italy , Shiretoko the national park on the Japanese peninsula of the same name.

Namoroka is a national park in Madagascar , Tumucumaque is a national park in Brazil.

Developer versions

From version 5, Firefox will be developed in parallel in five, from version 10 in six different so-called "channels". Four of these channels are intended for developers and pre-testers, the fifth “Release” channel and the sixth “ESR” channel are aimed at the general public.

Development cycle of Mozilla Firefox

Starting with version 5, each new version of Firefox went through the channels "Nightly", "Aurora" and "Beta" one after the other. This was developed and tested for six weeks in each channel before it was then published in the release channel. The use of the Aurora channel was discontinued with Firefox 56.

and display information about the image
Representation of the Firefox release cycle from version 5

Shadow

This channel is not public and only available to a select few (around ten) Mozilla employees. It is used to eliminate critical security gaps that should not be made public. This channel is of no importance for developers who do not belong to this group.

Nightly

Logo of the Nightly trial versions of Mozilla Firefox

Nightly is the name of the channel in which the development of a new version of Mozilla Firefox begins. "Nightly" versions can be unstable and possibly damage the Firefox installation and profile. After six to eight weeks, the Firefox version will be transferred from this channel to the “Aurora” channel, and the development of a new Firefox main version will begin in the Nightly Channel.

"Nightly" versions appear daily as so-called nightly builds ; they are automatically created from the source text without a prior check of their basic function. Downloading and running these versions is therefore only recommended for experienced users. They contain new functions, which, however, will not necessarily be included in the next official preliminary version and the next final version. Rather, the nightly versions are used to test not yet fully developed and sometimes very experimental functions. A detailed overview of current changes are at the Burning Edge - Blog . Before the introduction of the new release cycle, the "Nightly" pre-release versions of Firefox were known as Minefield .

Aurora

Old logo of the Aurora pre-release versions of Mozilla Firefox

The Aurora versions of Firefox were also created automatically from the source code on a daily basis . However, the innovations published in this channel were not quite as experimental as those of the Nightly channel. In addition, the QA team does a rough check of the Firefox version of this channel when the development of a new major version of Firefox begins in this channel (every six to eight weeks). This development channel has not been used since Firefox 56.

beta

The remaining beta versions of Firefox are checked by the QA team with every new release and should run largely stable. They are also already marked as "Mozilla Firefox" and therefore do not have a special pre-development name.

Release

Only Firefox versions for end users run in this channel. These are checked by quality control using the automatic update function before delivery. This channel should no longer contain any program errors.

ESR

In the ESR channel (Extended Support Release) only Firefox versions with long-term support for end users run. They are strictly checked by the QA team before they are shipped, but the versions are exempt from updates for program functions for one year and are only provided with security updates. As in the release channel, ESR versions should no longer contain any program errors.

See also

Web links

Individual evidence

  1. ↑ a b RapidRelease / Calendar Future branch dates - MozillaWiki. Mozilla Foundation, accessed November 14, 2017 .
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  293. ↑ Firefox 68.0.2, See All New Features, Updates and Fixes. Mozilla Foundation, August 14, 2019, accessed August 14, 2019 .
  294. ↑ Firefox ESR 68.0esr, See All New Features, Updates and Fixes. Mozilla Foundation, July 9, 2019, accessed July 9, 2019 .
  295. ↑ Firefox ESR 68.0.1esr, See All New Features, Updates and Fixes. Mozilla Foundation, July 18, 2019, accessed July 19, 2019 .
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  299. ↑ Firefox for Android 68.2.1, See All New Features, Updates and Fixes. Mozilla Foundation, November 13, 2019, accessed November 19, 2019 .
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  310. ↑ Firefox ESR 68.10.0, See All New Features, Updates and Fixes. Mozilla Foundation, June 30, 2020, accessed June 30, 2020 .
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  317. ↑ Firefox 70.0, See All New Features, Updates and Fixes. Mozilla Foundation, October 22, 2019, accessed October 22, 2019 .
  318. ↑ Firefox 70.0.1, See All New Features, Updates and Fixes. Mozilla Foundation, October 31, 2019, accessed October 31, 2019 .
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  331. ↑ Firefox 77.0.1, See All New Features, Updates and Fixes. Mozilla Foundation, June 3, 2020, accessed June 3, 2020 .
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  334. ↑ Firefox 78.0.2, See All New Features, Updates and Fixes. Mozilla Foundation, July 9, 2020, accessed July 27, 2020 .
  335. ↑ Firefox ESR 78.0esr, See All New Features, Updates and Fixes. Mozilla Foundation, June 30, 2020, accessed June 30, 2020 .
  336. ↑ Firefox ESR 78.0.1esr, See All New Features, Updates and Fixes. Mozilla Foundation, July 1, 2020, accessed July 1, 2020 .
  337. ↑ Firefox ESR 78.0.2esr, See All New Features, Updates and Fixes. Mozilla Foundation, July 9, 2020, accessed July 27, 2020 .
  338. ↑ Firefox ESR 78.1.0, See All New Features, Updates and Fixes. Mozilla Foundation, July 28, 2020, accessed July 28, 2020 .
  339. ↑ Firefox ESR 78.2.0, See All New Features, Updates and Fixes. Mozilla Foundation, August 25, 2020, accessed August 26, 2020 .
  340. ↑ Firefox 79.0, See All New Features, Updates and Fixes. Mozilla Foundation, July 28, 2020, accessed July 28, 2020 .
  341. ↑ Firefox 80.0, See All New Features, Updates and Fixes. Mozilla Foundation, August 25, 2020, accessed August 26, 2020 .
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