Mozilla Labs’ head of user experience, Aza Raskin (son of Mac pioneer Jef Raskin) has published a short video demonstrating a user interface concept for the upcoming mobile version of web browser Firefox. The version on show is designed for touch screen devices, though not multi-touch like the iPhone — a decision Mozilla took because “Firefox should be able to run on the least common denominator of touch devices”, explains Raskin.

Although, like the iPhone, “the interface should be operable with a finger. Switching between input methods is time-consuming and annoying, so the user shouldn’t have to switch to a stylus or other secondary form of input.”