Mozilla releases Firefox 57 “Quantum” browser with faster browser engine, major visual overhaul, and Google as default search engine
It's time. The New Firefox is finally here. Mozilla / Releases - APKMirror : Firefox 57.0 — Experience a fast, smart and personal Web. Abhimanyu Ghoshal / The Next Web : How to switch from RAM-hungry Chrome to speedy Firefox Quantum in 2 minutes Matt Southern / Search Engine Journal : Firefox Ditches Yahoo for Google as Default Search Provider Arif Bacchus / On MSFT : Firefox gets faster, cleaner and refined with Firefox Quantum Stephen Shankland / CNET : Firefox's big-bang update brings you speed and a new look Manish Goregaokar / The Rust Programming Language Blog : Fearless Concurrency in Firefox Quantum Gani Mohamed Waseem / International Business Times : Forget UC Browser, Mozilla launches faster new Firefox Quantum browser for Android, iOS and desktop Scott Adam Gordon / Android Authority : Mozilla Firefox Quantum for Android is here with a bad first impression Martin Brinkmann / gHacks Technology News : Mozilla drops Yahoo as Firefox's default search provider Sai Krishna / Fone Arena : Mozilla releases Firefox v57 ‘Quantum’ with faster core engine, new design and more Sandip Dedhia / BlogsDNA : Firefox Quantum - A browser with 2X Speed and Photon UI Carl Velasco / Tech Times : Mozilla Officially Launches Firefox Quantum: Here Are The Most Important Changes Maria Deutscher / SiliconANGLE : Meet Firefox Quantum, Mozilla's most compelling answer to Chrome yet Corbin Davenport / Android Police : Firefox v57 ‘Quantum’ now available for Android with updated design, improved performance … Zeljka Zorz / Help Net Security : Firefox Quantum: Security and privacy improvements Dan Thorp-Lancaster / Windows Central : Firefox snags a new look and healthy speed boost in major update Jacob Siegal / BGR : Mozilla is finally ready to take on Chrome with a brand new version of Firefox Mike Wuerthele / AppleInsider : Firefox 57 ‘Quantum’ for macOS released, iOS version user interface refresh coming Gregg Keizer / Computerworld : Mozilla seeks return to glory with release of Firefox Quantum Nate / getpocket.com : Introducing Pocket Recommendations in the New Firefox Quantum Mark Bergen / Bloomberg : Google Pays to Put Search Engine Back on Firefox Browser in U.S. Barry Schwartz / Search Engine Land : Mozilla drops Yahoo search for Google with new Firefox Quantum browser release Gary Ng / iPhone in Canada Blog : Firefox Quantum Download for Mac, PC and Linux Now Available Florin Bodnarescu / Neowin : Firefox Quantum now out of superposition, leaps to general availability Zak Killian / The Tech Report : Firefox 57 brings Project Quantum to the masses Mohit Kumar / The Hacker News : Firefox 57 “Quantum” Released - 2x Faster Web Browser Caroline Cakebread / Business Insider : Mozilla's Firefox web browser just got its biggest update in 13 years - here's what's new Zak Islam / Tom's Hardware : Firefox's Quantum Update Is Now Available Adnan Farooqui / Ubergizmo : Firefox Releases Its Fastest Version Yet Kirsten Korosec / Fortune : Mozilla Brings Competition to Google Chrome With New Firefox Quantum Browser Patrick Lucas Austin / Lifehacker : Why You Should Check Out The New Firefox Quantum Browser Pradeep / MSPoweruser : Latest Firefox browser update comes with huge performance improvements Frederic Lardinois / TechCrunch : Mozilla terminates its deal with Yahoo and makes Google the default in Firefox again Monica Chin / Mashable : Firefox just released a new ultra-fast web browser to take on Google Chrome Gizmodo : 4 Updates to Mozilla's Overhauled Quantum Firefox Tweets: Dave Herman / @littlecalculist : So happy for my former team at Mozilla Research today. Between the rollout of @ServoDev tech in Firefox 57: http://hacks.mozilla.org/... the success of @rustlang: http://blog.rust-lang.org/... and WebAssembly reaching saturation: http://blog.mozilla.org/... the team has LOTS to celebrate!
Context & Ripple Effects
Firefox Quantum is the payoff to Project Quantum, which Mozilla announced just over a year ago as an effort to rebuild its engine for speed, and it lands after a September beta that previewed both the new look and the performance claims. The shipping version also swaps Yahoo for Google as the default search provider, a quiet but commercially significant change bundled into a headline-grabbing release.
The framing across coverage is direct: outlets are walking readers through switching from Chrome to Firefox in minutes, meaning Mozilla is positioning this as the first credible performance challenge to Chrome's dominance rather than a routine point release.
First-order effects
- Firefox users get a rebuilt engine and Photon UI overnight, while Yahoo immediately loses the default-search placement it held in Firefox and Google regains that traffic funnel.
- Chrome's memory footprint becomes Mozilla's primary marketing target, giving switch-minded users a concrete reason to move now rather than wait.
Second-order effects
- Google paying for Firefox default placement again restores a key distribution channel for its search business, while Yahoo must compete for browser-originated query volume without guaranteed placement.
- Rival browser makers face pressure to answer Quantum's speed claims on their own release cadences, turning raw benchmark performance into a recurring public comparison.
Third-order effects
- If Quantum sustains share gains, Mozilla's subsequent releases — Firefox 58's rendering and caching work, then Firefox 67's cryptomining and fingerprinting protections — suggest the rebuilt engine becomes the platform for a privacy-led differentiation strategy against Chrome.
- Default-search deals re-emerge as the economic fulcrum of the browser market, where engine quality earns the audience and search placement monetizes it.
The trend: Browser competition is shifting from feature accumulation back to engine-level performance races, with default-search economics funding the challengers.