Anza-Borrego Desert State Park, California (© Stephen Matera/Tandem Stills + Motion)

Wat Phra Ngam, Ayutthaya Historical Park, Thailand (© boonchai wedmakawand/Alamy)

Lesser flamingos flying over Lake Magadi, Kenya (© Vicki Jauron, Babylon and Beyond Photography/Getty Images)

Bryce Canyon National Park, Utah (© Jim Patterson/Tandem Stills + Motion)

In collaboration with the other major browser engine developers, Mozilla is thrilled to announce Speedometer 3 today. Like previous versions of Speedometer, this benchmark measures what we think matters most for performance online: responsiveness….

A koala sleeping in a eucalyptus tree, Australia (© Anton Rogozin/Getty Images)

San Jacinto Building’s mechanical clock, Beaumont, Texas (© Richard T. Nowitz/Getty Images)

Bisti/De-Na-Zin Wilderness Area, New Mexico (© Ian Shive/Tandem Stills + Motion)

Tate Modern lit up for International Women’s Day, London, England (© Stephen Chung/Alamy Stock Photo)

Roques de Benet, Els Ports Natural Park, Catalonia, Spain (© Sergi Boixader/Alamy)