Firefox Preview is ready for pilottesting on Android phones

first_img Android web browsers Mozilla gives Firefox Focus a browser brain transplant on Android Privacy-protecting Tor Browser arrives on Android Google to ask Android users to choose preferred browser Vivaldi mobile browser due in 2019 — but no ad blocking 0 Mozilla said Thursday that it’s been working on a new strategy for Android for several months now, and that Firefox Preview is the result of combining the privacy and security of Mozilla Focus — a browser designed for quick leave-no-trace glances at websites — with the amenities of a full mobile browser. No tracking, faster web Mozilla isn’t the only one to discover the performance benefits of tracker blocking. The Brave browser, from the Brave Software founded by former Mozilla Chief Executive Brendan Eich, boasts similar speed boosts from blocking both trackers and ads.On Wednesday, it announced a new ad-blocking engine that speeds up that element of its browser by a factor of 69. Brave also is working on using machine learning to strip out website ads. Its technology, called AdGraph, is designed to resist advertisers’ efforts to sidestep the internet address lists commonly used to spot ads.Under the covers, Firefox Preview uses Mozilla’s GeckoView engine for processing and rendering websites. The hope is to provide a performance boost similar to what Mozilla got with its Quantum-branded Firefox browser for PCs. That could mean compatibility problems for web developers who today are accustomed to only testing with the mobile browsing engines used in Apple’s Safari and Google’s Chrome, but GeckoView’s independence also can improve web standards and keep the web from becoming controlled by those two tech giants.”Building Firefox for Android on GeckoView also results in greater flexibility in terms of the types of privacy and security features we can offer our mobile users,” Mozilla said. “With GeckoView we have the ability to develop faster, more secure and more user friendly browsers.”Apple prohibitions means no Firefox Preview for iPhoneOn iPads and iPhones, Apple prohibits the use of any browser engines other than its own WebKit. That means Firefox Preview can’t be released for Apple mobile devices.”Nevertheless, we are doing everything we can to work around these limits to bring the winning features from Preview to Firefox for iOS,” Zare said.firefoxpreview Mozilla Early adopters can provide feedback on Firefox Preview via Github or by emailing firefox-preview-feedback@mozilla.com.If you don’t like the Firefox Preview name, good news: it’s a placeholder. “Once matured, Firefox Preview will be rebranded with a permanent title,” Zare said.Originally published June 27, 9 a.m. PT.Update, 10:01 a.m.: Adds details about Firefox Preview performance and competitor Brave. Mobile Mobile Apps Phones Firefox Mozilla Now playing: Watch this: 1:11 Mozilla to offer premium services, Waze gets Assistant… Tags 34 Photos Share your voice Post a comment A new and improved Firefox browser is coming to Android phones. Mozilla Mozilla has launched a pilot test of its new web browser for Android phones, called Firefox Preview. The new browser is faster and more privacy-focused, and is available now for early adopters to test ahead of a “feature rich, polished version” coming in the fall, the nonprofit organization said.Firefox Preview is twice as fast as Firefox for Android, has a minimalist design and blocks tracking by default, Mozilla said in a blog post Thursday. It also has a Collections feature to help save, organize and share sites in collections like travel plans and shopping lists.Mozilla’s push for better online privacy has grown louder in recent months, most recently with the change to switch on tracking protection by default in Firefox. But despite years of trying, Mozilla’s influence on mobile devices is limited. Google’s Chrome and Apple’s Safari, the defaults installed on most mobile phones, dominate mobile browsing.Read more: Is Sony’s robot dog Aibo a privacy nightmare?Why is it so much faster? Because it blocks all computing overhead imposed by tracking technology many advertisers and websites use to follow you around the web for actions like building a profile to target ads.”Speed improvements are driven in large part by the comprehensive tracking protection that is on by default in Firefox Preview,” said Vesta Zare, senior product manager at Firefox Mobile. It’s also faster because Mozilla optimized its internal methods for juggling multiple computing tasks and its integration with Android devices.Mozilla based its measurements on page load times for Microsoft’s Bing search engine. That’s a pretty good stand-in for a broader list of more than 20 websites Mozilla tests with, but be warned that the speedups will vary from one website to another. Android 10 beta’s best new tricks from Google I/O 2019last_img read more

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Operating quantum memory at room temperature

first_img Explore further Citation: Operating quantum memory at room temperature (2008, August 25) retrieved 18 August 2019 from https://phys.org/news/2008-08-quantum-memory-room-temperature.html Quantum dots, along with quantum wires, have been attracting notice over the past decade as possible building blocks of quantum information processing. Indium arsenide quantum dots (InAs) can be used for memory operations in devices made from gallium arsenide and aluminum gallium arsenide (known as GaAs/AlGaAs devices). The problem is that at room temperature – the experiments are usually done at lower temperatures, the memory operation of these devices suffers, unless there are multiple quantum dot layers. Digitally programmable perovskite nanowire-block copolymer compositescenter_img That is changing now, thanks work done by a team of scientists at Würzburg University in Germany. “Memory operated at room temperature, and with only a single layer quantum dot layer, is important because it can be used in every day life,” Lukas Worschech, a member of the team at Würzburg tells PhysOrg.com. The work done by the team, which includes Müller, Heinrich, Höfling and Forchel, appears in Applied Physics Letters: “Room temperature memory operation of a single InAs quantum dot layer in a GaAs/AlGaAs heterostructure.”For quantum information processing, some sort of memory operation is necessary. One of the ways of realizing a memory device is to use quantum dots coupled to a transport channel. Memory (nonvolatile – such as flash memory) is realized when the charge state of the quantum dots control the system’s threshold. A floating gate is used to manage the threshold voltage. In GaAs/AlGaAs devices, the charge storage that is needed can be induced optically as well as electrically, which increases their usefulness and compatibility with different electronic and optoelectronic devices.“Until now, though,” Worschech explains, “low temperatures were needed with single layer quantum dot. Our idea was to create a system that could work under increased temperatures. Otherwise, you always have to put your samples in cryostats, and use long wirings. This makes it harder to extract all the information you want.” The Würzburg team suggests that with the InAs quantum dot functioning as a floating gate, the memory could be operated at room temperature. “From this structure, field emission is reduced drastically and we are able to observe the memory effect at room temperature.”One of the more interesting things about this set-up is that the InAs quantum dot is actually self-assembling. “The trick here is that the material does not match directly to the gallium arsenide. You do not have to structure them.” However, it can be difficult to control where these InAs quantum dots end up. “They are randomly distributed,” Worschech says, “you cannot say in a lateral field where they are placed.”Other scientists, though, have been working on this issue. “Through etching – making small holes at pre-defined sites – it turns out that indium arsenide growth can be controlled laterally,” Worschech points out. “Others have been working on this, and we would like to see our method combined with this lateral positioning that is being studied.”“This field of quantum dots is being intensely studied right now,” Worschech continues, “for use in quantum computers and sensors. Quantum cryptography is another field that would benefit from this work. It is also interesting for optical electronics. Our work may sever as an inter-connect for different applications.” Copyright 2007 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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