One mobile browser passed Facebook’s Ringmark tests, and you’ll never guess which one

If you tried to guess which mobile browser was the first one to pass Facebook's benchmarks, you'd be wrong. Nope, it's not Firefox for Android, Chrome for Android, or any of the newer mobile browsers we've been writing about lately. In fact, it's only just launched this week.

In a commitment to the mobile web, Facebook open-sources Ringmark

Today, Facebook has open-sourced Ringmark, its new test suite for mobile device manufacturers.

Ringmark, which was announced just a few weeks ago at Mobile World Congress in Barcelona, is designed to run “tests of core functionality that web developers need …