This new Quantum browser can be downloaded on your computer.
However, Mozilla has a strategy for marketing Firefox Quantum in the face of Chrome's dominance: It's targeting an audience of "conscious choosers" who would rather support a not-for-profit operation over Google-driven commercial interests.
The users will also see a completely new theme, tab design and menu items.
Let's start with the new features on Firefox Quantum.
It also features content recommendations from the reading-list app Pocket.
Mozilla has also gone back to Google for its standard search engine.
Firefox 57, aka "Quantum", sports a minimalist UI - finally, a merge of the address and search bars, making it the last browser to make that move - and under the skin, significant performance improvements. It additionally surpasses the execution of Google Chrome in a program speed test fight.
Firefox 57 hasn't rolled out in all Play Store locations just yet, but you do want to check it out, you can pick up the APK file here.
So far, Quantum definitely feels snappier than old Firefox, and definitely feels like a modern browser.
According to Mozilla, Firefox Quantum will allow you to "surf a ton of pages, open a zillion tabs" without experiencing a glitch as it uses comparatively lesser memory.
"To create Photon, our user research team studied how people browsed the web", says Mozilla.
A quick look at our resource monitor reveals that Quantum does use 30 - 40MB less RAM than Chrome does, which is great for folks like me that have several browser windows open at the same time.
The company claims that Quantum is by far the biggest update it has had since it launched Firefox 1.0 way back in 2004 and to improve user experience and performance in it will come with Google as the default search provider in the United States and Canada.