An anonymous reader writes Mozilla has released version 31 of its Firefox web browser for desktops and Android devices. According to the release notes, major new features include malware blocking for file downloads, automatic handling of PDF and OGG files if no other software is available to do so, and a new certificate verification library. Smaller features include a search field on the new tab page, better support for parental controls, and partial implementation of the OpenType MATH table. Firefox 31 is also loaded with new features for developers. Mozilla also took the opportunity to note the launch of a new game, Dungeon Defenders Eternity, which will run at near-native speeds on the web using asm.js, WebGL, and Web Audio. “We’re pleased to see more developers using asm.js to distribute and now monetize their plug-in free games on the Web as it strengthens support for Mozilla’s vision of a high performance, plugin-free Web.” Read more of this story at Slashdot.
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Firefox 31 Released
The Atlantic reports that two years ago, Facebook briefly conducted an experiment on a subset of its users, altering the mix of content shown to them to emphasize content sorted by tone, negative or positive, and observe the results. From the Atlantic article: For one week in January 2012, data scientists skewed what almost 700, 000 Facebook users saw when they logged into its service. Some people were shown content with a preponderance of happy and positive words; some were shown content analyzed as sadder than average. And when the week was over, these manipulated users were more likely to post either especially positive or negative words themselves. This tinkering was just revealed as part of a new study, published in the prestigious Proceedings of the National Academy of Sciences. Many previous studies have used Facebook data to examine “emotional contagion, ” as this one did. This study is different because, while other studies have observed Facebook user data, this one set out to manipulate it. At least they showed their work. Read more of this story at Slashdot. 
An anonymous reader writes “Microsoft [Wednesday] announced it is developing at least four new features for the next release of Internet Explorer (IE): Web Audio API, Media Capture and Streams, ES6 Promises, and HTTP/2. The company says this is not an exhaustive list of what to expect in the next version, but merely what it is currently confident that it will be able to deliver. For those who don’t know, HTTP/2 is a faster protocol for transporting Web content. It is based on Google’s SPDY open networking protocol and is currently being standardized by the IETF. Web Audio is a JavaScript API for processing and synthesizing audio in Web applications while Media Capture provides access to the user’s local audio and video input/output devices. Promises is meant to help developers write cleaner asynchronous code.” Read more of this story at Slashdot. 
kelk1 sends this article from the Stanford News Service: “Stanford bioengineers have developed faster, more energy-efficient microchips based on the human brain – 9, 000 times faster and using significantly less power than a typical PC (abstract). Kwabena Boahen and his team have developed Neurogrid, a circuit board consisting of 16 custom-designed ‘Neurocore’ chips. Together these 16 chips can simulate 1 million neurons and billions of synaptic connections. The team designed these chips with power efficiency in mind. Their strategy was to enable certain synapses to share hardware circuits. … But much work lies ahead. Each of the current million-neuron Neurogrid circuit boards cost about $40, 000. (…) Neurogrid is based on 16 Neurocores, each of which supports 65, 536 neurons. Those chips were made using 15-year-old fabrication technologies. By switching to modern manufacturing processes and fabricating the chips in large volumes, he could cut a Neurocore’s cost 100-fold – suggesting a million-neuron board for $400 a copy.” Read more of this story at Slashdot. 
jones_supa writes “Mozilla has released Firefox 27 for Linux, Android, Mac, and Windows (download). One of the big changes is enabling support for TLS 1.1 and 1.2 by default. Firefox 27 also supports the SPDY 3.1 protocol. Developers got some new toys: support was added for ES6 generators in SpiderMonkey, the debugger will de-obfuscate JavaScript, and style sheets can be reset by using all:unset. Mozilla also announced some new social integration options. In addition to all these changes, the Android version got some UI improvements and font readability upgrades. For a future release, Mozilla is currently testing a new approach for Firefox Sync in Nightly builds. They recognized the headaches involved with how it works, and they’re now opting to use a simple e-mail and password combination like Google Chrome does. In the old system, users were forced to store an auto-generated authorization code, which, if lost, would render their bookmarks, passwords and browsing history inaccessible. ” Read more of this story at Slashdot. 
New submitter jgb writes “WebKit is, now that Opera decided to join the project, in the core of three of the five major web browsers: Apple’s Safari, Google’s Chromium and Opera. Therefore, WebKit is also a melting pot for many corporate interests, since several competing companies (not only Google and Apple, but also Samsung, RIM, Nokia, Intel and many others) are finding ways of collaborating in the project. All of this makes fascinating the study of how they are contributing to the project. Some weeks ago, a study showed how they were submitting contributions to the code base. Now another one uncovers how they are reviewing those submitted contributions. As expected, most of the reviews during the whole life of the project were done by Apple, with Google as a close second. But things have changed dramatically during the last few years. In 2012, Google is a clear first, reviewing about twice as much (50%) as Apple (25%). RIM (7%) and Nokia (5%) are also relevant reviewers. Code review is very important in WebKit’s development process, with reviewers acting as a sort of gatekeepers, deciding which changes make sense, and when they are conforming to the project practices and quality standards. In some sense, review activity reflects the responsibility each company is taking on how WebKit evolves. In some sense, the evolution over time for this activity by the different companies tells the history of how they have been shaping the project.” Read more of this story at Slashdot. 