Mozilla Fleshes Out Firefox OS Simulator Features

The nonprofit organization is trying to give programmers better tools for writing Web apps for its mobile operating system.

Mozilla is at an awkward stage with Firefox OS: it wants its brand-new mobile operating system to attract developers, but there are very few phones available in the real world. To bridge the gap, the organization offers a phone simulator, and on Thursday, it updated the Firefox OS simulator to version 4.

Among the new features in the software, which is an add-on to the Firefox browser for personal computers, according to a blog post by Firefox OS developer advocate Angelina Fabbro: