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Today's Tech: Google patents 'pay per gaze' eye-tracking advertising tech and Mozilla plans Firefox for Windows 8 Metro UI

Google has been granted a patent for a technology that would enable it to charge advertisers on a "pay per gaze" basis. The application describes a Google Glass-like eye-tracking technology capable of measuring the "success" of advertising. The head-mounted equipment would work by recording how long a person looks at an advert, as well as their response to it. To work out how often an ad is viewed, the device would incorporate pupil-tracking technologies and, to figure out a user's response to an ad, it would analyse pupil dilation. The technology's impressive capabilities would not be restricted to digital advertisements, either. Google has also made it clear that users can opt out of the tracking system, and that all data collected through it will be made anonymous. The company applied for the patent back in May 2011.

Google has argued that as an American company, it does not have to answer to British laws in an ongoing UK privacy case. A claim against Google is being pursued by at least 10 British people who say that the search company illegally circumvented the security settings on Apple's Safari web browser to track their web usage on iPhone, iPad and Mac. However in a submission to the High Court, Google has said that the British legal system has "no jurisdiction" to hear the case as the company's consumer services are provided by US registered Google Inc based in Silicon Valley, and not Google UK. The bold claim has left those pursuing the case, along with privacy campaigners, outraged. Google has already been fined $22.5million (£14.4million) by regulators in the US for the same practice. Claimant Marc Bradshaw added: "It seems absurd to suggest that consumers can't bring a claim against a company which is operating in the UK and is even constructing a $1 billion headquarters in London."

According to new notes from Mozilla's most recent Firefox planning meeting, the company plans to launch a version of the browser for Windows 8's "Metro" UI. The "preview release," as Mozilla dubs it, will officially arrive as part of the company's Firefox 26 release on 10 December. If you're looking to get your hands on a Metro-ised version of Firefox even earlier, however, you can always check out the new browser iteration by grabbing the Aurora build of Firefox on 16 September. It's at that point that Mozilla will merge Firefox Metro into the "Aurora 26" variant of Firefox. While that means quicker access to features, it's also one of Mozilla's more unstable environments for browser releases - which is to say, don't be surprised or upset if your pre-beta browser starts getting funky. Mozilla intends to push all Aurora features into the Beta channel on 28 October - a bit more of a stable environment for potential testers to play around with, given that Mozilla will be spending its time between September and October fixing and polishing features.

The whispers surrounding Google's next flagship handset, the Nexus 5, are starting to get louder. More specifically, speculation is rife about which third-party manufacturer the search giant will turn to for the device, with the latest gossip tipping LG to get the nod. Chit-chat originating from Vietnamese site Tinhte has it that the powerful LG G2 smartphone has sealed the deal for the Korean firm, which also took the reins for the Google Nexus 4 handset in 2012. Word on the wire is that the Nexus 5 will carry a number of the similarities to the G2, including a 5.2in, Full HD display with an edge-to-edge screen design. Elsewhere, the Nexus 5 is expected to sport the same Qualcomm Snapdragon 800 chipset as the G2, complemented by 2GB RAM and coming with either 16GB or 32GB of on-board storage. As well as LG, Asus and Google-owned Motorola are also in the frame. It's believed that the Nexus 5 will break cover in October and arrive running the next iteration of Google's mobile OS, Android 5.0 Key Lime Pie.