MOBILE WORLD CONGRESS: Firefox pushes its mobile OS and $25 smartphone, Huawei hopes to make splash and BBM on Windows

BARCELONA – Mozilla wants you to know about its Firefox mobile OS. At a press event on Sunday, it introduced seven new commercial Firefox OS devices and highlighted advancements and partnerships that will enable the platform to scale up in 2014.In the past year, according to the company, Firefox OS devices have gone on sale in 15 markets with four global operators and handsets from three manufacturers and will be expanding into new markets in 2014. Telefonica will build on the list of countries where it's selling Firefox OS phones, with eight more launching this year: Argentina, Costa Rica, Ecuador,...