See What’s New in Firefox [144.0] fir )Oct 14, 2025 195 release-notes , firefox , browsers New to the Web Platform in September rac /dev )Oct 1, 2025 194 release-notes , web-platform , browsers , safari , apple , firefox , chrome , google Chrome Mask: Make Firefox Appear as Chrome With a Single Click Sep 8, 2025 193 firefox , chrome , browsers , browser-extensions Experimental: Firefox Now Supports Progressive Web Apps on Windows Aug 22, 2025 192 firefox , browsers , progressive-web-apps , web-apps Firefox 142 for Developers mdn )Aug 20, 2025 191 release-notes , firefox , browsers Mozilla Under Fire for Firefox AI “Bloat” That Blows Up CPU and Drains Battery neo )Aug 9, 2025 190 firefox , browsers , ai , performance New to the Web Platform in July rac /dev )Jul 31, 2025 189 release-notes , web-platform , browsers , firefox Shipping WebGPU on Windows in Firefox 141 jbl /moz )Jul 15, 2025 188 webgpu , firefox , browsers , windows , microsoft New to the Web Platform in June rac /dev )Jun 30, 2025 187 release-notes , web-platform , browsers , chrome , google , firefox , safari , apple New to the Web Platform in May rac /dev )May 29, 2025 186 release-notes , web-platform , browsers , firefox , chrome , google , safari , apple Mozilla Say Google Search Deal Vital to Firefox’s Survival d0o /omg )May 5, 2025 185 firefox , browsers , google New to the Web Platform in April rac /dev )Apr 30, 2025 184 release-notes , web-platform , browsers , chrome , google , firefox , safari , apple Firefox 137.0.2 Is a Big Bug Fix and Security Update Release Apr 15, 2025 183 firefox , browsers Firefox Release Notes [Firefox 137.0] moz )Apr 1, 2025 182 release-notes , firefox , browsers New to the Web Platform in March rac /dev )Mar 31, 2025 181 release-notes , web-platform , browsers , firefox , safari , apple , chrome , google Firefox 136 Launches With Vertical Tabs, but One Requested Feature Is Still Missing Mar 4, 2025 180 firefox , browsers Mozilla Updates Firefox Terms Again After Backlash Over Broad Data License Language the )Mar 1, 2025 179 firefox , browsers , licensing New to the Web Platform in February rac /dev )Feb 28, 2025 178 release-notes , web-platform , browsers , firefox , chrome , google , safari , apple Firefox: Mozilla Confirms Support for Classic Extensions and Manifest V3 Add-Ons Feb 26, 2025 177 firefox , browsers , browser-extensions Browsers: A Snapshot bry )Feb 25, 2025 176 browsers , browser-extensions , chromium , edge , microsoft , firefox , brave , safari , apple Firefox 135 Launches With New Translation Languages, New Tab Layout, Security, and Privacy Improvements Feb 4, 2025 175 firefox , browsers New to the Web Platform in January rac /dev )Jan 29, 2025 174 release-notes , web-platform , browsers , firefox , chrome , google , safari , apple Running Inference in Web Extensions tar /moz )Jan 22, 2025 173 firefox , browsers , ai New to the Web Platform in November rac /dev )Nov 28, 2024 172 release-notes , web-platform , browsers , firefox , chrome , google 20 Years of Firefox: How a Community Project Changed the Web moz )Nov 18, 2024 171 firefox , browsers , history , anniversaries New to the Web Platform in October rac /dev )Oct 30, 2024 170 release-notes , web-platform , browsers , firefox , chrome , google , safari , apple Celebrating 20 Years of Firefox Oct 28, 2024 169 videos , anniversaries , firefox , browsers New to the Web Platform in September rac /dev )Sep 30, 2024 168 release-notes , web-platform , browsers , chrome , google , firefox , safari , apple Feature Detecting Scroll-Driven Animations With “@ supports”: You Want to Check for “animation-range” Too bra )Sep 24, 2024 167 css , feature-detection , support , animations , firefox , browsers Firefox DevTools Newsletter 130 nic /fir )Sep 23, 2024 166 release-notes , firefox , browsers , dev-tools New to the Web Platform in August rac /dev )Aug 29, 2024 165 release-notes , web-platform , browsers , google , chrome , firefox The Dying Web mre )Aug 8, 2024 164 browsers , google , chrome , chromium , firefox , web Announcing Official Puppeteer Support for Firefox moz )Aug 7, 2024 163 browsers , firefox , puppeteer , support New to the Web Platform in July rac /dev )Jul 30, 2024 162 release-notes , web-platform , browsers , firefox , apple , safari , google , chrome How to Try Experimental CSS Features hui )Jul 5, 2024 161 how-tos , css , browsers , apple , safari , google , chrome , firefox Introducing the MDN HTTP Observatory mdn )Jul 2, 2024 160 introductions , mdn , http , security New to the Web Platform in June rac /dev )Jun 26, 2024 159 release-notes , web-platform , browsers , firefox , google , chrome , apple , safari Firefox DevTools Newsletter 127 nic /fir )Jun 18, 2024 158 release-notes , browsers , firefox , dev-tools See What’s New in Firefox [127.0] moz )Jun 11, 2024 157 release-notes , browsers , firefox Display the Specificity of a CSS Selector pat /dev )Jun 4, 2024 156 css , selectors , cascade , dev-tools , browsers , google , chrome , microsoft , edge , apple , safari , firefox New to the Web Platform in May rac /dev )May 29, 2024 155 release-notes , web-platform , browsers , google , chrome , apple , safari , firefox Here’s What We’re Working on in Firefox moz )May 21, 2024 154 browsers , firefox New to the Web Platform in April rac /dev )Apr 29, 2024 153 release-notes , web-platform , browsers , firefox , google , chrome , apple , safari New to the Web Platform in March rac /dev )Mar 28, 2024 152 release-notes , web-platform , browsers , firefox , apple , safari , google , chrome New to the Web Platform in February rac /dev )Feb 29, 2024 151 release-notes , web-platform , browsers , firefox , google , chrome , apple , safari Why I Use Firefox sim )Feb 26, 2024 150 browsers , firefox New to the Web Platform in January rac /dev )Jan 30, 2024 149 release-notes , web-platform , browsers , firefox , google , chrome , apple , safari Mozilla Says Apple’s New Browser Rules Are “as Painful as Possible” for Firefox ver )Jan 26, 2024 148 browsers , apple , firefox , mobile Battle of the Browsers zer )Jan 22, 2024 147 browsers , browser-engines , blink , chrome , google , edge , microsoft , brave , gecko , firefox , webkit , safari , apple , comparisons Chrome Alternative Browsers to Check Out in 2024 Jan 11, 2024 146 browsers , arc , the-browser-company , chromium , firefox New to the Web Platform in December rac /dev )Dec 19, 2023 145 release-notes , web-platform , browsers , firefox , google , chrome , apple , safari See What’s New in Firefox [121.0] moz )Dec 19, 2023 144 release-notes , browsers , firefox How to Enable Experimental CSS and JS Features in Chrome, Firefox, and Safari zor /css )Dec 11, 2023 143 videos , how-tos , experiments , browsers , google , chrome , firefox , apple , safari Firefox on the Brink? bry )Nov 30, 2023 142 browsers , firefox New to the Web Platform in November rac /dev )Nov 30, 2023 141 release-notes , web-platform , browsers , google , chrome , firefox Prodding Firefox to Update “:has()” Selection mey )Oct 19, 2023 140 css , selectors , firefox , support New to the Web Platform in July rac /dev )Jul 31, 2023 139 release-notes , web-platform , browsers , google , chrome , firefox , apple , safari See What’s New in Firefox [115.0] moz )Jul 4, 2023 138 release-notes , browsers , firefox New to the Web Platform in June rac /dev )Jun 30, 2023 137 release-notes , web-platform , browsers , firefox , google , chrome , apple , safari Introducing the MDN Playground: Bring Your Code to Life mdn )Jun 22, 2023 136 introductions , mdn , documentation , testing New to the Web Platform in May rac /dev )May 31, 2023 135 release-notes , web-platform , browsers , google , chrome , firefox , apple , safari See What’s New in Firefox [113.0] moz )May 9, 2023 134 release-notes , browsers , firefox New to the Web Platform in April rac /dev )Apr 28, 2023 133 release-notes , web-platform , browsers , google , chrome , firefox Firefox May Soon Reject Cookie Prompts Automatically Apr 17, 2023 132 cookies , legal , user-experience , firefox Firefox Rolls Out Total Cookie Protection by Default to More Users Worldwide moz )Apr 11, 2023 131 browsers , firefox , cookies , privacy New to the Web Platform in March rac /dev )Mar 31, 2023 130 release-notes , web-platform , browsers , google , chrome , firefox , apple , safari XUL Layout Is Gone Mar 30, 2023 129 history , xul , browsers , firefox Some Cross-Browser DevTools Features You Might Not Know css )Mar 22, 2023 128 dev-tools , browsers , google , chrome , firefox , apple , safari Mozilla, Like Google, Is Looking Ahead to the End of Apple’s WebKit Rule tho /the )Feb 7, 2023 127 browsers , browser-engines , google , apple , webkit Mozilla’s Abandoned Servo Web Engine Is Making a Comeback in 2023 its )Feb 6, 2023 126 browser-engines , servo , browsers New to the Web Platform in January rac /dev )Jan 31, 2023 125 release-notes , web-platform , browsers , google , chrome , firefox , apple , safari Best Browsers For Developers in 2023 tal )Jan 22, 2023 124 browsers , comparisons , firefox , polypane , brave , chrome , google Cache the World: Turbo Charging Firefox Accessibility Performance and Maintainability jcs )Dec 22, 2022 123 firefox , browsers , accessibility , caching Apple, Google, and Mozilla Are Teaming Up to Make a Next-Gen Browser Benchmark ver )Dec 16, 2022 122 browsers , apple , google Improving Firefox Stability With This One Weird Trick moz )Nov 22, 2022 121 browsers , firefox Firefox-Only CSS ami )Nov 17, 2022 120 css , browsers , firefox Significant Improvements for Screen Readers Now in Nightly Firefox moz )Nov 15, 2022 119 browsers , screen-readers , firefox , accessibility The Death of Mozilla Is the Death of the Open Web Aug 9, 2022 118 open-web Firefox (and Other Browsers), Forgotten? col )Jul 30, 2022 117 browsers , firefox , testing Use Firefox for Accessibility Testing col )Jul 17, 2022 116 browsers , firefox , accessibility , testing Version 100 in Chrome and Firefox moz )Feb 15, 2022 115 browsers , support , google , chrome , firefox What’s New in DevTools? pat /sma )Jan 26, 2022 114 dev-tools , browsers , google , chrome , microsoft , edge , apple , safari , firefox How to Customize Firefox UI—Step-by-Step Tutorial Dec 10, 2021 113 how-tos , tutorials , xul , browsers , firefox , customization 1999: The Fall of Netscape and the Rise of Mozilla ric )Oct 13, 2021 112 history , browsers , netscape Firefox’s “bolder” Default Is a Problem for Variable Fonts sim /css )Sep 7, 2021 111 css , fonts , variable-fonts , browsers , firefox What’s New With DevTools: Cross-Browser Edition pat /sma )Sep 7, 2021 110 dev-tools , browsers , google , chrome , microsoft , edge , firefox , apple , safari Looking Fine With Firefox 89 chr /moz )Jun 1, 2021 109 release-notes , firefox , browsers Browser Makers Launch New Project for Writing Documentation for Web APIs cam /zdn )Jan 25, 2021 108 web-platform , documentation , google , microsoft , w3c , igalia Welcoming Open Web Docs to the MDN Family chr /moz )Jan 25, 2021 107 mdn , documentation , web-platform , community Warp: Improved JS Performance in Firefox 83 jan /moz )Nov 13, 2020 106 firefox , browsers , javascript , performance , spidermonkey , javascript-engines Why Did Mozilla Remove XUL Add-Ons? Aug 21, 2020 105 browsers , xul A Guide to New and Experimental CSS DevTools in Firefox vx /sma )Oct 10, 2019 104 guides , firefox , browsers , dev-tools CanIUse and MDN Compatibility Data Collaboration flo +/moz )Sep 9, 2019 103 web-platform , documentation , caniuse , mdn , browsers , support Firefox 69—a Tale of Resize Observer, Microtasks, CSS, and DevTools chr /moz )Sep 3, 2019 102 release-notes , firefox , browsers How to Enable Experimental Web Platform Features in Chrome and Firefox mic )Jun 21, 2019 101 how-tos , experiments , web-platform , browsers , chrome , google , firefox Goodbye, EdgeHTML moz )Dec 6, 2018 100 edgehtml , gecko , browser-engines , browsers , firefox Firefox 63—Tricks and Treats moz )Oct 23, 2018 99 release-notes , firefox , browsers In Your Face, Passwords: Big Three Browsers All Adopt Authentication API Aug 1, 2018 98 security , authentication , webauthn , apis , edge , microsoft , chrome , google , firefox , browsers Everything You Need to Know About the Plan to Kill Internet Passwords dav /giz )Jun 7, 2018 97 passwords , authentication , webauthn , chrome , google , firefox , browsers Firefox 60 Lands: It’s World’s First Browser to Give You Password-Free Logins, Says Mozilla zdn )May 10, 2018 96 firefox , browsers , webauthn Inspecting Animations in DevTools fon /css )May 4, 2018 95 css , animations , dev-tools , browsers , chrome , google , firefox Mozilla Announces Firefox Reality, a Dedicated Browser for VR and AR Headsets jan /var )Apr 3, 2018 94 browsers , xr Microsoft, Google, and Mozilla Team Up for Web Documentation inf )Dec 24, 2017 93 mdn , microsoft , google , web-platform , documentation Further Working Mode Changes ann )Dec 11, 2017 92 whatwg , apple , google , microsoft , standards , community Optimizing CSS: Tweaking Animation Performance With DevTools Nov 23, 2017 91 css , animations , performance , optimization , dev-tools , browsers , firefox Browser Makers Agree to Move Web Documentation to Mozilla’s Portal cam /ble )Oct 18, 2017 90 browsers , web-platform , documentation , mdn , microsoft , google , w3c Mozilla Standards Positions moz )Aug 31, 2017 89 standards , support Firefox 54: E10S-Multi, WebExtension APIs, CSS “clip-path” moz )Jun 13, 2017 88 release-notes , firefox , browsers Firefox 53: Quantum Compositor, Compact Themes, CSS Masks, and More moz )Apr 19, 2017 87 release-notes , firefox , browsers Think You Know the Top Web Browsers? pet )Apr 13, 2017 86 metrics , browsers , chrome , google , firefox , safari , apple , internet-explorer , microsoft , opera , uc-browser Chrome, Firefox, and Edge Add Support for New WebAssembly Format cam /sof )Mar 15, 2016 85 webassembly , support , browsers , chrome , google , firefox , edge , microsoft Revisiting Firefox’s DevTools pat /sma )Dec 30, 2015 84 firefox , browsers , dev-tools Firefox 40: Profiling JavaScript Performance and More eli )Aug 25, 2015 83 firefox , browsers What’s New in Firefox 39 Jul 14, 2015 82 firefox , browsers What’s New in Firefox 38 eli )May 18, 2015 81 firefox , browsers Mozilla Wants to Deprecate Non-Secure HTTP, Will Make Proposals to W3C “Soon” epr /ven )Apr 30, 2015 80 http , security , deprecation Want Fancy Firefox Features? Secure Your Website sts /cne )Apr 14, 2015 79 firefox , browsers , http , security What’s New in Firefox 36: Android Debugging, HTTP/2 Support, and More eli )Feb 25, 2015 78 firefox , browsers What’s New in Firefox 35 cra )Jan 21, 2015 77 firefox , browsers What’s New in Firefox 34 cra )Dec 4, 2014 76 firefox , browsers What’s New in Firefox 33 eli )Oct 14, 2014 75 firefox , browsers Mozilla Relents, Says It Will Implement HTML5 DRM Solution in Firefox fre /tec )May 14, 2014 74 firefox , browsers , drm , eme Konqueror vs. Firefox May 2, 2014 73 browsers , konqueror , firefox , comparisons What’s New in Firefox 28 cra )Mar 26, 2014 72 browsers , firefox What’s New in Firefox 27 cra )Feb 11, 2014 71 browsers , firefox Despite Automatic Updates, Old Browsers Are Still a Problem edb /zdn )Jan 6, 2014 70 browsers , web-platform , security , chrome , google , firefox , internet-explorer , microsoft , safari , apple What’s New in Firefox 26 cra )Dec 11, 2013 69 browsers , firefox What’s New in Firefox 25 cra )Oct 31, 2013 68 browsers , firefox End of an Era as Firefox Bins “Blink” Tag the )Aug 7, 2013 67 firefox , browsers , html What’s New in Firefox 23 cra )Aug 7, 2013 66 browsers , firefox What’s New in Firefox 20 cra )Apr 5, 2013 65 browsers , firefox Firefox Raises the Online Privacy Bar With New Cookie Policy edb /zdn )Feb 24, 2013 64 firefox , browsers , cookies , privacy What’s New in Firefox 19 cra )Feb 20, 2013 63 browsers , firefox Hello Firefox, This Is Chrome Calling sla /dev )Feb 4, 2013 62 chrome , google , firefox , browsers , webrtc What’s New in Firefox 18 cra )Jan 9, 2013 61 browsers , firefox Firefox 18 Beta Adds JavaScript Improvements, Retina Display Support tec )Nov 27, 2012 60 firefox , browsers WebPlatform.org: Apple, Google, MS, Mozilla… Working on Standards Oct 9, 2012 59 web-platform , documentation , w3c , apple , facebook+meta , google , microsoft , adobe , opera W3C Announces Web Platform Docs sdt )Oct 8, 2012 58 w3c , web-platform , documentation , adobe , facebook+meta , google , microsoft , opera Happy 10th Birthday Firefox! cra )Sep 26, 2012 57 browsers , firefox , anniversaries What’s New in Firefox 15 cra )Aug 29, 2012 56 browsers , firefox Firefox Beta 15 Supports the New Opus Audio Format moz )Jul 19, 2012 55 firefox , browsers , multimedia What’s New in Firefox 14 cra )Jul 18, 2012 54 browsers , firefox Turn Off Cache in Firefox When [You’re] Testing Jun 30, 2012 53 caching , browsers , firefox What’s New in Firefox 12 and Chrome 18 cra )Apr 25, 2012 52 browsers , firefox , google , chrome Mozilla Delivers Firefox 10 tec )Feb 1, 2012 51 firefox , browsers What’s New in Firefox 10 cra )Feb 1, 2012 50 browsers , firefox What’s New in Firefox 9.0 cra )Dec 21, 2011 49 browsers , firefox What’s New in Firefox 8 cra )Nov 9, 2011 48 browsers , firefox Mozilla Release Firefox 5 cra )Jun 21, 2011 47 browsers , firefox Web Sockets and the Risks of Unfinished Standards sts /cne )Dec 10, 2010 46 websockets , opera , standards HTML5 Forms Validation in Firefox 4 mou )Nov 10, 2010 45 html , forms , validation , firefox , browsers Opera With Extensions: Now Can It Replace Firefox? smf /bet )Oct 28, 2010 44 opera , firefox , browsers , browser-extensions HTML5 Accessibility ste )Oct 8, 2010 43 websites , html , accessibility , browsers , support , chrome , google , firefox , internet-explorer , microsoft , opera , safari , apple Firefox Unveiled: Gecko Basic Data Flow Jun 15, 2010 42 browsers , firefox , gecko , browser-engines , parsing Firefox 4: CSS3 “calc()” Jun 10, 2010 41 css , functions , firefox , browsers What’s Coming in Firefox 4.0 cra )May 17, 2010 40 browsers , firefox Getting Users to Upgrade Their Browsers rey /aja )Apr 9, 2010 39 browsers , chrome , google , internet-explorer , microsoft , firefox , safari , apple , opera Eight Reasons to Choose Safari or Firefox mac )Dec 29, 2009 38 browsers , safari , apple , firefox , comparisons Firefox 3.5 Is the World’s Most Popular Browser cra )Dec 22, 2009 37 browsers , firefox Web Open Font Format for Firefox 3.6 moz )Oct 20, 2009 36 fonts , woff , firefox , browsers HTML 5 Parser Lands in Gecko dal /aja )Jul 8, 2009 35 html , parsing , gecko , browser-engines , firefox , browsers Open Web Tools Directory oct /aja )Jul 7, 2009 34 open-web , tooling Browser CSS Hacks pau )Apr 15, 2009 33 browsers , css , hacks , microsoft , internet-explorer , opera , apple , safari , firefox Firefox Support for CSS3 Multiple Backgrounds dal /aja )Mar 24, 2009 32 css , backgrounds , support , firefox , browsers Using the Crowd to Tell Us About Browser Responsiveness dal )Dec 22, 2008 31 browsers , google , open-web Firefox 3.1 to Support HTML 5 Video and Audio bra /aja )Oct 27, 2008 30 firefox , browsers , multimedia , html Ajaxians Join Mozilla, Creating a Developer Tools Group dal /aja )Oct 13, 2008 29 ajaxian , open-web Google Working on Browser: What About Mozilla? cat )Sep 2, 2008 28 browsers , google , webkit “border-image”: No More Cutting Up Hell dal /aja )Aug 13, 2008 27 css , borders , images , webkit , firefox , browsers , support What’s the Fastest Way to Code a Loop in JavaScript? Jul 24, 2008 26 javascript , loops , performance , metrics , comparisons , browsers , firefox , camino , safari , opera , internet-explorer New YSlow With Firefox 3 Support sto )Jun 17, 2008 25 browser-extensions , release-notes , firefox , browsers , support Firefox 3 CSS and HTML Support Information Available Jun 16, 2008 24 browsers , firefox , support , html , css Two Hidden Features New in Firefox 3 sen )May 23, 2008 23 browsers , firefox The Browser Bunch joe /mac )Mar 31, 2008 22 browsers , unix-like , comparisons , safari , apple , camino , firefox , opera Firefox 3 Offers Numerous Features for Developers Mar 19, 2008 21 firefox , browsers Color Rendering Difference: Firefox vs. Safari chr /css )Feb 28, 2008 20 colors , rendering , comparisons , firefox , safari , apple , browsers Firefox 3 Performance Gets a Boost Feb 25, 2008 19 firefox , browsers , opera , safari , internet-explorer , comparisons , metrics Cursing With JavaScript: Three Random Tips dal /aja )Feb 19, 2008 18 javascript , prototypejs , firefox , internet-explorer , microsoft , browsers , pop-ups , tips-and-tricks The Great Browser JavaScript Showdown cod )Dec 19, 2007 17 javascript , performance , metrics , opera , safari , apple , internet-explorer , microsoft , firefox , browsers , comparisons Mozilla Hunting for Memory dal /aja )Nov 13, 2007 16 firefox , browsers , mobile , memory Font Rendering Differences: Firefox vs. IE vs. Safari chr /css )Aug 29, 2007 15 css , fonts , rendering , firefox , internet-explorer , microsoft , safari , apple , browsers , comparisons Adobe and Mozilla Foundation to Open Source Flash Player Scripting Engine ado )Nov 7, 2006 14 adobe , flash , foss Mozilla’s Layout Engine dba /moz )Jul 12, 2006 13 slides , gecko , browser-engines , browsers “<a ping>” Jan 17, 2006 12 firefox , browsers , html , privacy Cross Browser Compatibility Jan 17, 2006 11 browsers , interoperability , internet-explorer , microsoft , netscape , firefox , opera Firebug Jan 12, 2006 10 websites , firebug , firefox , browsers , dev-tools Firefox Fans Promised Version 1.5 Tonight iai )Nov 29, 2005 9 firefox , browsers Mozilla XForms Project Threatened by Cut-Backs sen )Nov 13, 2005 8 xforms , forms Firefox Takes the Good With the Bad Nov 4, 2005 7 firefox , browsers Websites Alienate Firefox Users Jun 23, 2005 6 firefox , browsers Don’t Be Fooled! Keep Internet Explorer at All Cost! plo )Nov 9, 2004 5 internet-explorer , microsoft , firefox , browsers Mozilla, Opera Join Forces for New W3C Proposal tec )May 31, 2004 4 opera , w3c , web-forms , standards Future of the Web, a Must-Read gla )May 21, 2004 3 web-platform , outlooks , principles , opera Web Authors Pledge Allegiance to IE zdn )Jul 8, 2002 2 internet-explorer , microsoft , browsers , netscape , opera Why Gecko Matters: What Netscape’s Upcoming Browser Will Mean to the Web zel /ali )Mar 24, 2000 1 netscape , gecko , browsers , browser-engines 