If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit.Check your Firefox version (in the “About Firefox” window) and look for “(32-bit)” or “(64-bit)” after the version number: If you’re running 64-bit Windows ( here’s how to check), your Firefox may already be 64-bit. Linux and macOS users, fret not, you already enjoy a Firefox that’s optimized for 64-bit. Also, with the jump from 32 to 64 bits, a security feature called Address Space Layout Randomization (ASLR) works better to protect you from attackers. Here’s the key thing to know: 64-bit applications can access more memory and are less likely to crash than 32-bit applications. What’s the difference between 32-bit and 64-bit? How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more. That means you get a more secure version of Firefox, one that also crashes a whole lot less. Firefox OS phones are just now being launched in other countries throughout Europe, but there are no plans to launch phones in North America yet.Users on 64-bit Windows who download Firefox can get our 64-bit version by default. The ZTE Open sells for about $80 without a contract, as opposed to high-end phones like the iPhone 5s that sell for $649 without a contract. The first Firefox OS smartphone is named the ZTE Open, and it has been made available in places like Spain, Latin America, and India since July 2013. Mozilla is avoiding these markets for now and has been selling cheap, low-end Firefox OS phones in more price-sensitive markets. If you’re in North America or Europe, there’s a good reason you haven’t yet heard of Firefox OS. Just as everything ultimately runs in Chrome on Chrome OS, everything ultimately runs in Firefox on Firefox OS - even though these apps can run “outside the browser” and be installed locally. RELATED: Living With a Chromebook: Can You Survive With Just a Chrome Browser?įirefox OS has a lot in common with Chrome OS, Google’s browser-centric OS for laptops. In theory, you could one day install Firefox for Android and access the Firefox Marketplace to use Firefox OS apps on Android. For example, Mozilla creates a full-featured version of Firefox for Android. Mozilla also wants these apps to be portable.
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