* '''Firefox OS Simulator''': ochameau, paul, jryans, janx
* '''Tilt (3D View)''': vporof
* '''Canvas Debugger''': vporof, jsantell* '''WebGL Shader Editor''': vporof, jsantell
* '''Web Audio Editor''': jsantell, vporof
* '''Memory''': fitzgen, jimb, jsantell
* '''Responsive Design''': jryans, paul