Bengaluru: IT solutions provider Mphasis on Wednesday said it has been granted a US patent for its artificial intelligence system for tracking, managing and analysing data. The patent relates to optimised data aggregation and analytics across physical and digital data sources, the company said. The Sensex snapped its four-session winning run to close marginally lower on Wednesday as investors pocketed gains in finance, banking and consumption stocks amid mixed global cues. Mozilla Firefox has laid off 250 employees and shut its operations in Taiwan. "Today, we announced a significant restructuring of Mozilla Corporation. This will strengthen our ability to build and invest in products and services that will give people alternatives to conventional Big Tech," Mozilla CEO Mitchell Baker said.