Today's release of Firefox 22.0 introduces official support for 3D gaming via Epic's Unreal Engine, among other significant additions.

Mozilla outlines the update at its official blog, noting that a "supercharged subset of JavaScript" (asm.js) powers high-performance applications like 3D games. Mozilla previously demonstrated asm.js's power with an HTML5 version of the Unreal Engine tech demo "Epic Citadel."

Firefox 22.0 also adds support for video and voice calls, and enables file sharing without requiring third-party plugins. BananaBread, a free multiplayer FPS that demonstrates WebGL, Emscripten, asm.js, and WebRTC, can be played in a Firefox browser window here.