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Google is launching Blink, an open-source rendering engine spinning out of WebKit, the engine powering browsers including the company's own Chrome as well as archrival Apple's Safari.

The average U.S. consumer now spends an average of 2 hours and 38 minutes per day on smartphones and tablets, dedicating 80 percent of that time--about 2 hours and 7 minutes--to mobile applications and the remaining 31 minutes to surfing the mobile Web, mobile app analytics firm Flurry reports.

Mozilla said it will not expand its Firefox browser to the iOS mobile operating system until Apple relaxes its stance against third-party browser technology.

Opera Software, the company behind the popular mobile browser of the same name, confirmed it will scrap its Presto rendering engine in favor of WebKit, a move to increase its competitiveness on Google's Android and Apple's iOS.